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Electrical

03-06-03-003C ACDelco Replacement Battery Warranty Procedures - (Apr 15 2013) Low Voltage Battery - part 2      Do not include labour hours to replace the battery.If no parts were replaced and only repairs were necessary, enter labour time in the“Labour Hours” field and other material in the “Net Misc” field.The battery part number and...
03-06-03-003C ACDelco Replacement Battery Warranty Procedures - (Apr 15 2013) Low Voltage Battery      Subject: ACDelco® Replacement Battery Warranty Procedures Models:  2014 and Prior GM Passenger Cars and Trucks Attention:  “GM of Canada” and “IPC” Service Agents are not authorized to utilize this...
03-06-03-004J Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester Charger Required for Claim Processing On Labor Operation 4041510 and 250 Mile 400 Km Labor Operation Restriction (North America ONLY) - (Oct 25 2013) Low Voltage Battery - part 3      Important:The complete code 15 Characters (17 characters with optional hyphen) must be enteredinto the Labor Code Dependency Field in GWM. Note:To warranty administrators, the following characters are not used in the...
03-06-03-004J Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester Charger Required for Claim Processing On Labor Operation 4041510 and 250 Mile 400 Km Labor Operation Restriction (North America ONLY) - (Oct 25 2013) Low Voltage Battery - part 2      Important:To access downloads on this website you must first register and establish a user nameand password.  A link is provided at bottom of page to “Create an account” or ContactDES at 1-866-868-3372 if assistance is needed....
03-06-03-004J Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester Charger Required for Claim Processing On Labor Operation 4041510 and 250 Mile 400 Km Labor Operation Restriction (North America ONLY) - (Oct 25 2013) Low Voltage Battery      Subject: Warranty Code Generated By EL-50313 Midtronics GR8 Battery Tester/Charger Requiredfor Claim Processing On Labor Operation 4041510 and 250 Mile/400 Km Labor OperationRestriction (North America ONLY) Models:...
07-08-47-004E Information on Body Control Module (BCM) Grounds - (May 20 2013)      Subject: Information on Body Control Module (BCM) Grounds Models:  2006-2011 Buick Lucerne 2008-2014 Buick Enclave 2006-2011 Cadillac DTS 2007-2009 Cadillac SRX 2007-2014 Cadillac Escalade Models...
08-06-03-006B Engine Running with Key Off Continuous Run - Sensing and Diagnostic Module (SDM) No Communication Service Air Bag Light Illuminated DTCs B1440 P0381 or P0650 (Install Diode to Solenoid Relay) - (Aug 2 2012) Relays - part 2      Be sure to insulate the diode withheat shrink tubing before installing. Parts Information Part Number Description Qty 12112422 Diode 1 Warranty Information This repair will not be covered under warranty due to...
08-06-03-006B Engine Running with Key Off Continuous Run - Sensing and Diagnostic Module (SDM) No Communication Service Air Bag Light Illuminated DTCs B1440 P0381 or P0650 (Install Diode to Solenoid Relay) - (Aug 2 2012) Relays      Subject: Engine Running with Key Off, Continuous Run – Sensing Diagnostic Module (SDM), NoCommunication, Service Air Bag Light Illuminated, DTCs B1440, P0381 or P0650 (InstallDiode to Solenoid/Relay) Models:...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012) - part 6      This fuse must be equal in size to the powerside fuse. Connect the circuit(s) to the accessory.Reinstall the fuse block base and cover.Tie rap the fuse block/harness back into the original location.Reconnect the battery feed...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012) - part 5      The ignition is controlled through either a single relay(RPO WRJ) or dual relays (RPO WRK). Chassis ground can also be accessed at both the front compartment and rear cargo areafuse blocks. Accessing Power and Ground from the...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012) - part 4      The pin out of the connector is as follows: Cavity Circuit Description Circuit Number Fuse Size 1 Ground 1050 NA 2 Battery Feed (Do Not Use) 4540 15 Amps 3 Not Used — — 4...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012) - part 3      Relay Installation radio relay pin pin (30) (86) relay (37a) (37) (as) 10 radio (1 d50) Install relay (P/N-12193601) with 5-way pigtail connector (P/N-15306045) as shownin the above diagram to ensure the load from the radio...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012) - part 2      winches, power inverters, etc.) on 2011 and beyond GM Hybrid trucks,please refer to the GM Upfitter Integration website at www.gmupfitter.com. The guidelinesbelow apply to the use of existing OEM power distribution centers and...
09-08-45-003E Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks - (Jun 21 2012)      Subject: Installation of Electrical Aftermarket Accessories on 2-Mode Hybrid Full Size Trucks Models:  2008-2013 Cadillac Escalade Hybrid 2008-2013 Chevrolet Tahoe Hybrid 2009-2013 Chevrolet Silverado Hybrid...
10-08-45-001D Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish - (Feb 14 2013) - part 4      Drill a 10 mm (0.40 in) diameter hole through the panel. Remove paint and primer from the area surrounding the 10 mm (0.40 in) until bare metalis visible. Important:The M6 conductive rivet stud as shown, can accommodate a...
10-08-45-001D Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish - (Feb 14 2013) - part 3      The oxidized wear debriscan accumulate at the electrical contact points causing the electrical resistanceacross the connection to increase. Carefully remove ANY corrosion or contamination that may be present on the electrical...
10-08-45-001D Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish - (Feb 14 2013) - part 2      The oxidized wear debriscan accumulate at the electrical contact points causing the electrical resistanceacross the connection to increase. Carefully remove ANY corrosion or contamination that may be present on the electrical...
10-08-45-001D Information for Electrical Ground Repair - Use New Replacement Fasteners with Conductive Finish - (Feb 14 2013)      Subject: Information for Electrical Ground Repair — Use New Replacement Fasteners with ConductiveFinish Models:  2014 and Prior GM Passenger Cars and Trucks     This bulletin is being revised to add the...
12-08-132-001A Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720 Fuse Replacement - (Mar 26 2013) Fuses      Subject: Accessory Power Outlet and Trailer Lighting Fuse Replacement Labor Operation N1720Fuse Replacement Models:  2010-2014 GM Passenger Cars and Trucks     This bulletin is being revised to add the 2014...
13-08-116-001A Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues - (Mar 22 2013) - part 2      Theexamples below illustrate some of the devices encountered. Examples: The monitoring device examples are not specific to any one design, and styles willvary. Device W/Secondary DLC Connector This device has another DLC...
13-08-116-001A Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues - (Mar 22 2013)      Subject: Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues Models:  2006-2014 GM Passenger Cars and Trucks     This bulletin is being revised to add additional possible symptoms, clarify the...
175 Amp Mega Fuse Replacement (Auxiliary Battery) Low Voltage Battery      175 Amp Mega Fuse Replacement Callout Component Name Preliminary Procedures Disconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and Connection. 1 Mega-Fuse Holder Nut...
200 Amp Mega Fuse and Auxiliary Electrical Center 12VDC Junction Block Replacement Junction Box      200 Amp Mega Fuse and Auxiliary Electrical Center 12VDC Junction Block Replacement Callout Component Name Preliminary ProceduresDisconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and...
Auxiliary Body Control Module Replacement Body Control Modules      Auxiliary Body Control Module Replacement Callout Component Name Preliminary Procedures Remove the inflatable restraint module. Refer toAirbag Instrument Panel Module Replacement. 1 Auxiliary Body Control...
Battery Energy Control Module and Bracket Replacement Low Voltage Battery      Battery Energy Control Module and Bracket Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection...
Battery Negative Cable Disconnection and Connection Low Voltage Battery      Disconnect Procedure Warning:Refer toBattery Disconnect Warning. Note:Do NOT disconnect the negative battery cable from the batteryuntil a period of at least 1-minute after performing thefollowing: Turning the ignition to...
Battery Negative Cable Disconnection and Connection (Single Battery) Low Voltage Battery      Disconnect Procedure Warning:Refer toBattery Disconnect Warning. Turn off all the lamps and accessories.Turn the ignition OFF.Loosen the negative cable nut-(1).Reposition the negative battery cable away from...
Battery Negative Cable Replacement (V8) Low Voltage Battery      Battery Negative Cable Replacement Callout Component Name Preliminary ProceduresDisconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and Connection.Remove the oil pan skid plate ,if...
Battery Positive Cable Replacement (12V Battery to Auxiliary BEC) Low Voltage Battery      Removal Procedure Disconnect the negative battery cable. Refer toBattery Negative Cable Disconnection and Connection.Reposition the positive battery cable insulatingcover-(2) from over the positive terminal.Rotate the lever...
Battery Positive Junction Block Cable Replacement (Glow Plug Module - Diesel) Junction Box      Battery Positive Junction Block Cable Replacement Callout Component Name Preliminary Procedures Disconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and Connection. 1 Mega-Fuse...
Battery Tray Replacement Battery Holder and Tiedown      Removal Procedure Warning:Refer toBattery Disconnect Warning. Remove the battery. Refer toBattery Replacement.Reposition the positive and negative battery cables out ofthe way.Remove the battery tray to battery tray...
Battery Tray Replacement Battery Holder and Tiedown      Removal Procedure Remove the battery. Refer toBattery Replacement.Remove the battery tray front support bolts.Remove the battery tray front support. Remove the nut securing the battery tray to the front fenderinner...
Body Control Module Bracket Replacement Body Control Modules      Body Control Module Bracket Replacement Callout Component Name Preliminary ProcedureRemove the knee bolster panel. Refer toKnee Bolster Replacement.Remove the instrument panel driver knee bolster deflector.Refer...
Body Control Module Replacement Body Control Modules      Body Control Module Replacement Callout Component Name Preliminary Procedure Remove the knee bolster. Refer toKnee Bolster Replacement 1 Body Control Module Tip: Remove the BCM cover.Disconnect the...
Coolant Temperature Sensor Replacement (Generator Control Module) Alternator Generator      Coolant Temperature Sensor Replacement Callout Component Name Preliminary ProceduresPartially drain the generator control module coolant radiatorjust below the level of the coolant temperature sensor. Refer...
Drive Motor Battery Cable Terminal Extension Replacement Battery Main Cables      Drive Motor Battery Cable Terminal Extension Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery Cable Terminal Extension Cover Replacement Battery Main Cables      Drive Motor Battery Cable Terminal Extension Cover Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery Case Upper Cover Front Cover and Right Side Cover Replacement Low Voltage Battery      Drive Motor Battery Case Upper Cover, Front Cover, and Right Side Cover Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or...
Drive Motor Battery Control Module Harness Replacement HV Battery Control      Drive Motor Battery Control Module Harness Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection...
Drive Motor Battery Cooling Air Outlet Duct and Front Air Outlet Duct Replacement Low Voltage Battery      Drive Motor Battery Cooling Air Outlet Duct and Front Air Outlet Duct Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or...
Drive Motor Battery Current Sensor Replacement Battery Temp Control      Drive Motor Battery Current Sensor Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection...
Drive Motor Battery High Voltage Manual Disconnect Knob Housing Replacement Low Voltage Battery      Drive Motor Battery High Voltage Manual Disconnect Knob Housing Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or...
Drive Motor Battery Identification Information Low Voltage Battery      (1) Quantity of Modules: 40 Batteries =L (2) Date of Production: 2nd day =02 (3) Month of Production: 1,2,3....9,X(10), Y(11), Z(12) (4) Year of Production: 2008 = L, 2007 =K (5) Production Shift: A, B...
Drive Motor Battery Negative High Voltage Contactor Relay Replacement Relays      Drive Motor Battery Negative High Voltage Contactor Relay Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery Negative Relay Cable Replacement Relays      Drive Motor Battery Negative Relay Cable Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection...
Drive Motor Battery Positive and Negative Cable Replacement Low Voltage Battery      Drive Motor Battery Positive and Negative Cable Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery Positive High Voltage Contactor Relay Replacement Relays      Drive Motor Battery Positive High Voltage Contactor Relay Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery Positive Relay Cable Replacement Relays      Drive Motor Battery Positive Relay Cable Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection...
Drive Motor Battery Replacement and Shipping Preparation Low Voltage Battery - part 2      Danger:The high voltage (HV) battery must be protected when outsideof the vehicle. Storage Guidelines Store the HV battery flat, do not exceed45-degrees when handling.Store the HV battery in an environmentally...
Drive Motor Battery Replacement and Shipping Preparation Low Voltage Battery      Special ToolEL-48265Battery Lifting FixtureEL-48569Terminal Covers For equivalent regional tools, refer toSpecial Tools. Removal Procedure Danger:Always perform the High Voltage Disabling procedure prior toservicing any High...
Drive Motor Battery Sensor Module Wiring Harness Replacement Low Voltage Battery      Drive Motor Battery Sensor Module Wiring Harness Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor Battery with Case Overhaul Low Voltage Battery - part 2      rive Motor Generator Battery Control Module Assembly and Drive Motor Battery CurrentSensor Assembly .. \. Drive Motor Generator Battery Control Module Assembly and Drive Motor Battery CurrentSensor Assembly Callout...
Drive Motor Battery with Case Overhaul Low Voltage Battery      Table 1: Case Covers Table 2: Battery Fan Assembly Components Table 3: Drive Motor Battery Negative High Voltage Contactor Relay Assembly and Generator BatteryVent Fan Relay Table 4: Drive Motor Generator...
Drive Motor Generator Control Module Assembly Replacement Alternator Generator - part 3      Never touch the exposed electroniccircuit board surface or components. Dropped fasteners or physicalcontact may result in electronic circuit board damage. Install the high voltage-(HV) dc battery cableterminal fasteners-(2)....
Drive Motor Generator Control Module Assembly Replacement Alternator Generator - part 2      Remove the sight shield circuit breakerfasteners-(1).Remove the sight shield circuitbreaker-(2). Remove the APM ground strap fastener-(2) andground strap-(1).Remove the drive motor generator control module assemblymounting...
Drive Motor Generator Control Module Assembly Replacement Alternator Generator      Removal Procedure Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection Equipment (PPE) and proper procedures must befollowed. The High...
Drive Motor Generator Control Module Sight Shield Replacement Alternator Generator      Removal Procedure Remove the fender brace. Refer toFront Fender Rear Upper Brace Replacement. Note:Removing the sight shield disengages the High VoltageInterlock Circuit-(HVIC). The sight shield mountingfastener must be...
Drive Motor Generator Power Inverter Module Removal and Installation Alternator Generator - part 2      Remove the power inverter module cover retainingbolts-(1).Remove the power inverter module cover-(2). Caution:Always remove and install the High Voltage terminal fastenerswith a magnet tipped socket. Never touch the exposed...
Drive Motor Generator Power Inverter Module Removal and Installation Alternator Generator      Special ToolsGE-48494Power Electronics Pressure Test AdapterKitJ 24460-01Cooling System Pressure TesterRemoval Procedure Remove the drive motor generator control module from thevehicle. Refer toDrive Motor Generator Control...
Drive Motor Power Inverter Current Limit Relay Replacement Relays      Drive Motor Power Inverter Current Limit Relay Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection....
Drive Motor with Generator Assembly Cleaning and Inspection - 1st Position Alternator Generator      Drive Motor with Generator Assembly Cleaning and Inspection - 1st Position Callout Component Name Caution:Do not use any type of solvent or cleaning agents in or onmotor. Solvents or cleaning agents may damage the...
Drive Motor with Generator Assembly Cleaning and Inspection - 2nd Position Alternator Generator      Drive Motor with Generator Assembly Cleaning and Inspection - 2nd Position Callout Component Name Caution:Do not use any type of solvent or cleaning agents in or onmotor. Solvents or cleaning agents may damage the...
Drive Motor with Generator Assembly Installation - 2nd Position Alternator Generator      Drive Motor with Generator Assembly Installation - 2nd Position Callout Component Name 1 Drive Motor (w/Generator) Assembly-–-2nd Position Warning:The generator motor weighs approximately36-kg-(80-lbs). Personal...
Drive Motor with Generator Assembly Installation - 1st Position Alternator Generator      Drive Motor with Generator Assembly Installation - 1st Position Callout Component Name 1 Drive Motor (w/Generator) Assembly-–-1st Position Warning:The generator motor weighs approximately36-kg-(80-lbs). Personal...
Drive Motor with Generator Assembly Removal - 1st Position Alternator Generator      Drive Motor with Generator Assembly Removal - 1st Position Callout Component Name 1 Generator Drive Motor Bolt-M6-x-1.0-x-20.0 (Qty:-3) Note:Remove only the three bolts on the motor that are indicated. 2...
Drive Motor with Generator Assembly Removal - 2nd Position Alternator Generator      Drive Motor with Generator Assembly Removal - 2nd Position Callout Component Name 1 Generator Drive Motor Bolt-M6-x-1.0-x-20.0 (Qty:-3) Note:Remove only the three bolts on the motor that are indicated. 2...
Engine Compartment Fuse Block      Pickup Models e25] lamp [47] [43 fan rly [68] [28] e29] hdlp nc cmprsr -3- _6_ pwri stbtb rear defog [13] e40] [51] runi crnk ;13; -22 e23] e24] fuel prk -tp [33] -tp [41] e46] [52] -4- :19: The underhood fuse block is...
Engine Ground Strap Replacement (Diesel)      Engine Ground Strap Replacement Callout Component Name Preliminary Procedures Raise and support the vehicle. Refer toLifting and Jacking the Vehicle. 1 Upper Plenum Ground Strap Nut Caution:Refer toFastener...
Engine Ground Strap Replacement (V6)      Removal Procedure Remove the ground strap bolt from the rear of the leftcylinder head.Reposition the ground strap from the cylinder head. Remove the ground strap nut from the stud at the front ofdash.Remove the ground...
Engine Ground Strap Replacement (V8)      Removal Procedure Remove the engine wiring harness ground bolt.Reposition the engine wiring harness ground and groundstrap. Remove the ground strap nut from the stud at the front ofdash.Remove the ground strap from the...
Front Seat Heater Kit Installation - part 4      Refer to Splicing Copper Wire Using Splice Sleevesin Vehicle Service Manual. Reassemble junction block cover and wire tie-(1) accessory harness-(2) to existingvehicle wiring, away from park brake mechanism, securing it out...
Front Seat Heater Kit Installation - part 3      Route Body harness jumper-(1) underneath driver’s side door sill plate along sideexisting sill plate wiring harness, making sure it’s tucked into trench and away fromsill plate clips. Continue routing body harness...
Front Seat Heater Kit Installation - part 2      Replacementfasteners must be the correct part number for that application.Fasteners requiring replacement or fasteners requiring the use ofthread locking compound or sealant are identified in the serviceprocedure. Do not use...
Front Seat Heater Kit Installation      Installation Instructions Part Number 19159289 Note:For Pick-up only, the vehicle this accessory is being installed MUST NOT HAVE thePower Take Off (PTO) option. The heated seat switches are located in the same spotin the...
Fuses      Fuse Location The bi-fuel system has two fuses that are part of the engine compartment wiring harness.Both fuses are in a plastic holder that is mounted inside the engine compartment,near the accessory battery tray.
Gasoline Compressed Natural Gas Fuel Selector Relay Replacement Relays      Removal ProcedureTurn off all electrical accessories and lamps.Turn the ignition key OFF.Disconnect the negative battery cable. Refer toBattery Negative Cable Disconnection and Connection. Remove the relay nut and bolt-(1)....
Generator Battery Cover Access Door Replacement Alternator Generator      Generator Battery Cover Access Door Replacement Callout Component Name Preliminary Procedure Lift the rear seat cushion the full upright position. 1 Generator Battery Cover Access Door Procedure Carfully...
Generator Battery Cover Replacement Alternator Generator      Generator Battery Cover Replacement Callout Component Name Preliminary Procedure Lift the rear seat cushion the full upright position. 1 Generator Battery Cover Procedure Carfully disconnect the generator...
Generator Battery Jumper Cable Replacement (K76) Alternator Generator      Generator Battery Jumper Cable Replacement Callout Component Name Preliminary Procedures Disconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and Connection. 1 Mega-Fuse Holder...
Generator Battery Vent Fan Relay Replacement Relays      Generator Battery Vent Fan Relay Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection Equipment...
Generator Battery Vent Fan Replacement Alternator Generator      Generator Battery Vent Fan Replacement Callout Component Name Danger:Always perform the High Voltage Disabling procedure prior toservicing any High Voltage component or connection. PersonalProtection Equipment (PPE)...
Generator Bracket Replacement (V6) Alternator Generator      Removal Procedure Remove the generator. Refer toGenerator Replacement.Remove the drive belt tensioner. Refer toDrive Belt Tensioner Replacement.Remove the drive belt idler pulley. Refer toDrive Belt Idler Pulley Replacement...
Generator Bracket Replacement (V8) Alternator Generator      Removal Procedure Remove the generator. Refer toGenerator Replacement.Remove the power steering pump. Refer toPower Steering Pump Replacement.Remove the engine wiring harness clip bolt (3) are repositionthe clip (1) away...
Generator Control Module Coolant Inlet Hose Replacement Alternator Generator      Generator Control Module Coolant Inlet Hose Replacement Callout Component Name Preliminary ProceduresDrain the cooling system. Refer toGenerator Control Module Cooling System Draining and Filling.Raise the vehicle....
Generator Control Module Coolant Outlet Hose Replacement Alternator Generator      Generator Control Module Coolant Outlet Hose Replacement Callout Component Name Preliminary ProceduresDrain the cooling system. Refer toGenerator Control Module Cooling System Draining and Filling.Remove the air...
Instrument Panel Electrical Center or Junction Block Replacement - Left Side Junction Box      Instrument Panel Electrical Center or Junction Block Replacement - Left Side Callout Component Name Preliminary Procedure Remove the instrument panel (I/P) knee bolster. Refer toKnee Bolster Replacement. 1...
PI0412B No Crank No Start Dead Battery Due to Parasitic Drain Discharge - (Feb 27 2013) Low Voltage Battery      Subject: No Crank/No Start, Dead Battery Due to Parasitic Drain/Discharge Models:  2011-2013 GM Passenger Cars and Trucks (Except Cadillac STS, Chevrolet Volt) Equipped with OnStar® This PI is being revised...
PI0938 Powertrain and Various Electrical Electronic Control Issues - (Mar 25 2013)      Subject: Powertrain and Various Electrical/Electronic Control Issues Models:  2007-2014 GM Passenger Cars and Light Duty Trucks     Condition/Concern The following two labor codes is for claiming “Labor...
PI1098 Battery Test Cold Cranking Amperage (CCA) for Original Equipment Batteries and Testing Tips - (Nov 6 2013) Low Voltage Battery      Subject: Battery Test Cold Cranking Amperage (CCA) for Original Equipment Batteries and TestingTips Models:  2012-2014 GM Cars and Trucks     Correct battery cold cranking amperage (CCA) ratings and type...
PIT4539P Drive Motor Generator Control Module (PIM) Part Restriction - (Aug 3 2012) Alternator Generator - part 2      This seal kit needs to be ordered by the dealerand is not a restricted part. Driving Condition Customer Questionnaire Please have the customer answer as many questions below and as accurately as possible. What was the...
PIT4539P Drive Motor Generator Control Module (PIM) Part Restriction - (Aug 3 2012) Alternator Generator      Subject: Drive Motor Generator Control Module (PIM) Part Restriction Models:  2009-2013 Cadillac Escalade 2009-2013 Chevrolet Silverado 2008-2013 Chevrolet Tahoe 2009-2013 GMC Sierra 2008-2013 GMC...
PIT4585E 2-MODE (HYBRID) No Crank After Discharged Or Dead 12v Battery - (Nov 16 2012) Low Voltage Battery      Subject: 2-MODE (HYBRID) No Crank After Discharged Or Dead 12v Battery Models:  2009-2013 Cadillac Escalade Hybrid 2008-2013 Chevrolet Tahoe and GMC Yukon Hybrid 2009-2013 Chevrolet Silverado and GMC Sierra...
PIT4813C Normal Characteristic - Service Charging System Message Or Low Volt Gauge Reading After Cold Start - (Dec 12 2012)      Subject: Normal Characteristic - Service Charging System Message Or Low Volt Gauge ReadingAfter Cold Start Models:  2007-2013 Chevrolet Silverado 2007-2013 GMC Sierra With 6.6L Diesel Engine This PI was...
PIT4816E Diagnosing Troubleshooting Multiple Electrical Concerns Intermittent No Crank Or DTC C0900 - (Oct 16 2013)      Subject: Diagnosing / Troubleshooting Multiple Electrical Concerns / Intermittent No Crank/ Or DTC C0900 Models:  2007-2014 Cadillac Escalade Models 2007-2013 Chevrolet Avalanche, Silverado 1500 2007-2014...
PIT4821C (Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC - (Mar 15 2013) Low Voltage Battery - part 4      arranty Information For vehicles repaired under warranty use: Labor Code Description Labor Time  N5823 Drive Motor Generator Battery Replacement Use Published Labor Operation Time Add Administrative...
PIT4821C (Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC - (Mar 15 2013) Low Voltage Battery - part 3      In the event the HV Battery needs to be recycled, refer to the webpage "General MotorsRecycle My Battery” http://recyclemybattery.com/ for the latest information. SHIPPING PREPARATIONDisable the high voltage at the drive motor...
PIT4821C (Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC - (Mar 15 2013) Low Voltage Battery - part 2      Upon review of the diagnosis, TAC will establish a case referencenumber, and if necessary, make arrangements for ordering a hybrid battery assembly. Important:The Hybrid battery assembly can now be internally serviced, however...
PIT4821C (Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC - (Mar 15 2013) Low Voltage Battery      Subject: (Hybrid) High Voltage 2-Mode Battery Parts Restriction-TAC Models:  2009-2013 Cadillac Escalade 2008 - 2013 Chevrolet Tahoe and GMC Yukon Hybrid 2009-2013 Chevrolet Silverado and GMC Sierra Hybrid...
Rearview Driver Information Camera Package Installation (Rearview Mirror) - part 4      Re-engage Roof Console Assembly-(3) to the headliner.Re-install the two Roof Console Screws-(2) into the Assembly-(3). Tighten Tighten the two screws to 2-Y (18-lb-in).Re-install the Front Overhead Console Lens-(1)....
Rearview Driver Information Camera Package Installation (Rearview Mirror) - part 3      Adjust the mirror-(2) to the full upward position.Remove the base trim cover, if present.Loosen the Screw-(3).Slide the mirror assembly-(2) in an upward motion in order to remove from mountingtab-(1), and discard. Remove...
Rearview Driver Information Camera Package Installation (Rearview Mirror) - part 2      If the vehicle is not equipped with factory Endgate Lock, install new Handle as follows.If equipped, skip this step.Install the new Endgate Latch Handle-(2) into the Endgate.Install the two upper Endgate Latch Handle...
Rearview Driver Information Camera Package Installation (Rearview Mirror)      Installation Instructions Part Number 19201804 Rearview Camera Kit Contents Description Instruction Sheet Template (P/N 19172564) Camera/Module/Bezel Assembly Inside Rearview Mirror with Monitor (ISRVM)...
Rearview Driver Information Camera Package Installation (Nav Radio) - part 5      the delay that is received after shining out of re- verse (r) is approximately 10 seconds. the delay can be cancelled by performing one of the following: pressing hard key on the navigation system or touching the navigation...
Rearview Driver Information Camera Package Installation (Nav Radio) - part 4      Re-install the Knee Bolster Assembly-(2) with the screws-(1). Tighten Tighten the screws to 2-Y (18-lb-in). Re-install Parking brake Release Handle and Bolt. Tighten Tighten the bolt to 9-Y (80-lb-in).Chassis Harness Install...
Rearview Driver Information Camera Package Installation (Nav Radio) - part 3      Route the navigation radio harness along the left side I/P floor air duct-(1) to thenavigation radio. c46 (7641) 10 11 12 13 14 15 16 For model year 2007-2011 disconnect the C4 connector (BN) from the navigation radioand...
Rearview Driver Information Camera Package Installation (Nav Radio) - part 2      If the vehicle is not equipped with factory Endgate Lock, install new Handle as follows.If equipped, skip this step.Install the new Endgate Latch Handle-(2) into the Endgate.Install the two upper Endgate Latch Handle...
Rearview Driver Information Camera Package Installation (Nav Radio)      Installation Instructions Part Number 20906137 Rearview Camera Kit Contents Description Instruction Sheet Template (P/N 19172564) Camera/Module/Bezel Assembly Chassis Harness (Long) NAV Radio Harness...
Relay Replacement (Attached to Wire Harness) Relays      Removal Procedure Locate the relay. Refer to theMaster Electrical Component Listto locate the relay in the vehicle.Remove any fasteners which hold the relay in place.Remove any connector position assurance (CPA) devices or...
Relay Replacement (Within an Electrical Center) Relays      Special Tools EL-43244 Relay Puller Pliers Removal ProcedureRemove the electrical center cover. Note: Always note the orientation of the relay.If equipped with a notch style relay; observe the location of the notch on the...
Relay Rod Replacement (Dual Rear Wheels or Crew Cab With SRW) Relays      Special Tools J 24319-BSteering Linkage and Tie Rod Puller For equivalent regional tools, refer toSpecial Tools. Removal ProcedureRemove the engine shield, if equipped. Refer toEngine Shield Replacement.Remove the steering...
Relay Rod Replacement (SRW Except Crew Cab With SRW) Relays      Relay Rod Replacement Callout Component Name Preliminary ProceduresRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.Remove the engine shield, if equipped. Refer toEngine Shield Replacement.Remove...
Special Tools      Illustration Tool Number/Description EL 38758 EL 50074 J 38758 Parasitic Draw Test Switch EL 50313 EL 42000 EL 50076 J 42000 Battery Tester EL-48900 HEV Safety Kit...
Special Tools      Illustration Tool Number/Description EL-38758 EL-50074 J-38758 Parasitic Draw Test Switch EL-50313 EL-42000 EL-50076 J-42000 Battery Tester
Starter Replacement (Diesel)      Starter Replacement Callout Component Name Preliminary ProceduresDisconnect the battery negative cable. Refer toBattery Negative Cable Disconnection and Connection.Remove the right side front wheelhouse liner.Refer...
Theft Deterrent Alarm Package Installation - part 3      Secure with a tie strap. maximum to minimum sensitivity The Shock Sensor shold be mounted with the WHITE adjustment knob positioned towardthe floor for easy access and tuning the sensitivity level.Arm the vehicle’s content...
Theft Deterrent Alarm Package Installation - part 2      Attemptto reprogram the control module. If the control module cannot be programmed, replacethe control module.Reprogram the IPC (Instrument Panel Cluster) using the method called out by TCSC.Reprogram the BCM (Body Control...
Theft Deterrent Alarm Package Installation      Installation Instructions Part Number 19169630 The vehicle must have the keyless entry option (&AU0), (AP3), (AP8) and DIC (&UK3)or the GM accessory DIC switch package for this security system. Otherwise, it doesnot have the...
Theft Deterrent Vehicle Inclination Sensor Package Installation (Installation Instruction 22962507) - part 2      If an interruption occurs, programmingfailure or control module damage may occur.DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful.Ensure that all connections are secure and the SPS...
Theft Deterrent Vehicle Inclination Sensor Package Installation (Installation Instruction 22962507)      Installation Instructions Part Number 22962507 The vehicle must have the keyless entry option (&AP3/AP8/AU0) and DIC (&UK3) or theGM accessory DIC switch package for this security system. Otherwise, it doesn’t havethe...
Underhood Electrical Center or Junction Block Bracket Replacement Junction Box      Underhood Electrical Center or Junction Block Bracket Replacement Callout Component Name Preliminary Procedure Remove the underhood electrical center/junction block. Refer toUnderhood Electrical Center or Junction...
Underhood Electrical Center or Junction Block Replacement Junction Box      Underhood Electrical Center or Junction Block Replacement Callout Component Name Preliminary Procedure Disconnect the battery. Refer toBattery Negative Cable Disconnection and Connection. 1 Underhood...
Auxiliary Body Control Module Scan Tool Information Body Control Modules      Table 1: Auxiliary Body Control Module Table 2: Auxiliary Body Control Module Scan Tool OutputControls Auxiliary Body Control Module Parameter System State Expected Value Description Operating Conditions:...
Data Link Communications Description and Operation - part 2      Modulesconnected to the GMLAN low speed buss can be part of a virtualnetwork as described in GMLAN High Speed Circuit Description above.The modules on the GMLAN low speed serial data buss are connectedto the buss using several...
Data Link Communications Description and Operation      Circuit Description The communication among control modules is performed throughthe high speed GMLAN serial data circuits and the low speed GMLANserial data circuit. The modules that need real time communicationare attached to...
Body Control System Description and Operation Body Control Modules      The body control system consists of the body control module(BCM), communications, and various input and outputs. Some inputs,outputs and messages require other modules to interact with theBCM. The BCM also has discrete input...
Body Control Module Programming and Setup Body Control Modules      Introduction A new body control module (BCM) must be programmed with the latest operating softwareand vehicle calibrations. Ensure that the following conditions exist in order to preparefor BCM programming: The battery is...
Auxiliary Body Control Module Programming and Setup Body Control Modules      Introduction A new auxiliary body control module (XBCM) must be programmedwith the latest operating software and vehicle calibrations. Ensurethat the following conditions exist in order to prepare for BCMprogramming: The...
Body Control Module Scan Tool Information Body Control Modules - part 2      p> Body Control Module Scan Tool Output Controls Scan Tool Output-Control Additional Menu Selections Description Accy/RAP Relay — This output control is used to command the Accy/RAP relay Onand Off. Backup...
Body Control Module Scan Tool Information Body Control Modules      Table 1: Body Control Module Scan Tool Data Parameters Table 2: Body Control Module Scan Tool Output Controls Body Control Module Scan Tool Data Parameters Parameter System State Expected Value Definition...
Charging System Description and Operation - part 3      Itstargeted APM set-point voltage is12.9–13.2-volts. The BCM will exit this modeonce the criteria are met for Normal Mode. Plant Assembly Mode The BCM will increase charging voltage for the first500-miles of operation in an...
Charging System Description and Operation - part 2      Battery Current Sensor The battery current sensor is a serviceable component that isconnected to the negative battery cable at the battery. The batterycurrent sensor is a 3-wire hall effect current sensor. The batterycurrent...
Charging System Description and Operation      12-Volt Battery The following information is for the 12-Volt batteryonly. For information about charging the high voltage drive motorbatteries, refer toJump Assist Description and Operation. Electrical Power...
Drive Motor Generator Battery Control Module Programming and Setup Alternator Generator      The following service procedures require either a programmingor a setup event be performed for a complete repair. The batteryenergy control module-(BECM) is located inside the drivemotor generator battery assembly, and can be...
Drive Motor Generator Power Inverter Module Programming and Setup Alternator Generator      The following service procedures require either a programmingor a setup event performed for a complete repair. PIM Replacement If the drive motor generator power inverter controlmodule-(PIM) assembly is replaced, the...
Charging System Description and Operation - part 4      The calculated battery current is less than 1-ampere and greaterthan ?7-amperes, and the generator field duty cycle is less than 99-percent. Its targetedgenerator output voltage is 12.9-V. The BCM will exit this mode once the...
Charging System Description and Operation - part 3      Battery Sulfation ModeCharge ModeFuel Economy ModeHeadlamp ModeStart Up ModeVoltage Reduction Mode The engine control module (ECM) controls the generator through the generator turnON signal circuit. The ECM monitors the...
Charging System Description and Operation - part 2      The rectifiedvoltage has been converted into a direct current (DC) for use by the vehicles electricalsystemto maintain electrical loads and the battery charge. The voltage regulator integralto the generator controls the output...
Charging System Description and Operation      Electrical Power Management Overview The electrical power management system is designed to monitor and control the chargingsystem and send diagnostic messages to alert the driver of possible problems withthe battery and...
Drive Motor Generator Control Module Description and Operation Alternator Generator - part 4      An external 12V DC batterycharger is required during the Jump Assist mode because theaccessory DC power control module and vehicle controllers may drawas much as 80-Amps of current from the vehicles12-volt DC system....
Drive Motor Generator Control Module Description and Operation Alternator Generator - part 3      Each motor control module iscontained within the power inverter module. Also contained withinthe power inverter module is the hybrid powertrain control modulemicro-processor. Operating Functions Each motor control module...
Drive Motor Generator Control Module Description and Operation Alternator Generator - part 2      Hybrid Powertrain Control Module Location The hybrid powertrain control module is a non-serviceable,flash-programmable micro-processor contained within the powerinverter module assembly. Operating Functions The hybrid...
Drive Motor Generator Control Module Description and Operation Alternator Generator      Overview The drive motor generator power inverter module assemblyconverts high voltage direct current-(DC) electricalenergy to 3-phase alternating current-(AC)electrical energy. The accessory DC power control module...
Drive Motor Generator Battery Control Module Scan Tool Information HV Battery Control - part 2      table >Scan Tool Output Controls Output Control Description Battery Pack Fan Speed The Battery Pack Fan Speed represents the RPM of the hybrid battery vent fan. TheHybrid Batt Pack Fan Commanded value represents the...
Drive Motor Generator Battery Control Module Scan Tool Information HV Battery Control      Table 1: Scan Tool Data Parameters Table 2: Scan Tool Output Controls The Drive Motor Generator Battery Control Module Scan Tool Data List contains allHybrid Battery related parameters that are available on the...
Hybrid Battery Parameter Identification HV Battery      Hybrid Battery Parameter Identification Hybrid Battery Voltage parameter Measures sum of battery pair Battery 1 is located next to cooling fan assembly. Battery 40 is located next to drive motor generator batterycontrol...
Drive Motor Battery System Description Low Voltage Battery - part 4      Each of the 40-hybrid batteries has a vent forelectrolyte gas that is located on the top of each battery. Thehybrid batteries vent system connects all of the 40 hybrid batteryvents to a rubber manifold. The vent exits the...
Drive Motor Battery System Description Low Voltage Battery - part 3      The BECM willclose the HV contactor relays only at the request of the HPCM.Either the BECM or the HPCM can command that the HV contactorrelays be opened in the event a system fault is detected. Thecontactors must be opened and...
Drive Motor Battery System Description Low Voltage Battery - part 2      In the event a hosted module communicates a fault condition,the HPCM will determine if hybrid operation is affected and notifythe vehicle operator by requesting the MIL illuminate and/or bydisplaying a hybrid service required...
Drive Motor Battery System Description Low Voltage Battery      Overview The drive motor generator battery is also referred to as thehybrid battery. The drive motor generator battery contains 40individual battery modules. Each battery module is rated at7.2-volts direct current-(DC) and all...
Drive Motor Battery Odor Low Voltage Battery      Diagnostic Fault Information Perform a visual inspection of all hoses and manifolds in the venting system for kinks,restrictions and poor connections. This could cause gases to back up and create anodor. Check all electrical...
Drive Motor Battery End of Life Resistance Low Voltage Battery      Drive Motor Battery End of Life Resistance Bat. Int. Temp °C (°F) Module Pair Resistance mOhm Pack Resistance Ohms ?10°C (14°F) 141.33 8.93 ?5°C (23°F) 112.05 7.08 0°C (32°F) 88.90 5.62...
Drive Motor Battery Cooling Description Low Voltage Battery      The hybrid drive motor battery has two venting systems. Onefor hybrid battery cooling air and one for venting of possiblegases from the hybrid battery vents. The hybrid batteries ventsystem connects all the battery vents to a...
Drive Motor Battery Noise Low Voltage Battery      Diagnostic Fault Information The hybrid drive motor generator battery has very few movingparts. The moving parts are the 3 high voltage-(HV)contactor relays, the hybrid drive motor battery vent fan relay,and the vent fan...
Battery Disconnect Warning Low Voltage Battery      Warning:Unless directed otherwise, the ignition and start switch must be in the OFF or LOCKposition, and all electrical loads must be OFF before servicing any electrical component.Disconnect the negative battery cable to...
Drive Motor Battery High Voltage Contactor Relay Operation Relays      The hybrid drive motor battery contains 3 relays that allowthe high voltage-(HV) DC batteries to be connected tothe vehicle. The three HV relays are a positive HV contactor relay,negative HV contactor relay and current limit...
Brake Fluid Effects on Paint and Electrical Components Caution      Caution:Avoid spilling brake fluid onto painted surfaces, electricalconnections, wiring, or cables. Brake fluid will damage paintedsurfaces and cause corrosion to electrical components. If any brakefluid comes in contact with...
Fastener Tightening Specifications - 4WD Driveline Control      Fastener Tightening Specifications Application Specification Metric English Air Conditioning (A/C) Compressor/Condenser Hose Bracket Bolt(4.3L) 25-Y 18-lb-ft Auxiliary Battery Hold Down Bolt (6.2L, 6.6L)...
Starter Solenoid Switch Replacement (Diesel)      Removal Procedure The starter switch is replaced with the starter assembly.Refer toStarter Replacement.
Starting System Description and Operation      The starter motors are non-repairable starter motors. They have pole pieces that arearranged around the armature. Both solenoid windings are energized. The pull-in windingcircuit is completed to the ground through the starter...
Starting System Description and Operation      The HP2-hybrid system does not use a conventionalstarter. Refer toHybrid Modes of Operation Descriptionfor information about thestarting system.
Electrical Power Management Description and Operation (Gasoline)      The electrical power management is used to monitor andcontrol the charging system and alert the driver of possibleproblems within the charging system. The electrical powermanagement system makes the most efficient use of the...
Fastener Tightening Specifications - 4WD Driveline Control      Fastener Tightening Specifications Application Specification Metric English Battery Hold Down Retainer Bolt 25-Y 18-lb-ft Battery Tray to Battery Tray Reinforcement Bolts 9-Y 80-lb-in Battery...
Electrical Center Identification Views      Figure 1: Fuse Block - Underhood Label Figure 2: Fuse Block - Underhood Top View - Diesel Figure 3: Fuse Block - Underhood Top View - Gas Figure 4: Fuse Block - Underhood Bottom View Figure 5: Fuse...