Workshop Repair and Service Manuals GMC SIERRA
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Internal Combustion Powertrain Control

Throttle Body Cleaning Engine Control Air Metering Acceleration Throttle      Remove the air cleaner outlet duct. Refer toAir Cleaner Resonator Outlet Duct Replacement. Warning:Turn OFF the ignition before inserting fingers into thethrottle bore. Unexpected movement of the throttle blade couldcause...
Retaining Ring Reuse Caution Driveline Control 4WD Driveline Control      Caution:Do not reuse the retaining ring. Install a NEW retainingring. Reusing the old retaining ring may cause damage to the clutchassembly.
Diesel Exhaust Fluid (DEF) Warning Strategy (DEF Level) Engine Control      An adequate on-board supply of Diesel Exhaust Fluid-(DEF) is critical for the reductionof exhaust Oxides of Nitrogen (NOx) levels within the Selective Catalyst Reduction-(SCR)stage. This vehicle provides the driver with an...
Diesel Exhaust Fluid (DEF) Warning Strategy (DEF Level) Engine Control - part 2      The ExhaustFluid Empty Refill Now message remains on the DIC until acknowledged by the driver.The Max Speed mileage countdown until speed limitation will remain displayed in theDIC. The DEF Indicator in the instrument panel is...
Diesel Exhaust Fluid (DEF) Warning Strategy (DEF Level) Engine Control - part 3      Exhaust Fluid EmptyRefill Now remains in the DIC until acknowledged by the driver; however, the speedlimited and mileage countdown for speed limitation remain displayed in the DIC. The DEF Indicator in the instrument panel...
Ignition Transmission Lock Check Driveline Control 4WD Driveline Control      While parked and with the parking brake set, try to turn the ignition to LOCK/OFFin each shift lever position. The ignition should turn to LOCK/OFF only when the shift lever is in P-(Park).The ignition key should come out only...
Engine Control Module (ECM) X2 (HP2) Driveline Control 4WD Driveline Control      Engine Control Module (ECM) X2 (HP2) 1 16 32 73 52 72 17 33 53 Connector Part InformationHarness: EngineOEM: 15499466Service: 88988931Description: 73-Way F MX123 Series, Sealed (BK) Terminal Part InformationPins: 1, 3,...
Fuel Rail Pressure (FRP) Sensor (LNF) Driveline Control 4WD Driveline Control      Fuel Rail Pressure (FRP) Sensor (LNF) 1 3 Connector Part InformationHarness: InjectorOEM: 1928403966Service: 88988583Description: 3-Way F 2.8 Series Sealed (BK) Terminal Part InformationTerminal/Tray: Service by Harness...
X416 Rear Bumper Harness to Right Hip Lamp Harness (RO5) Driveline Control 4WD Driveline Control      X416 Rear Bumper Harness to Right Hip Lamp Harness(RO5) B A B A Connector Part InformationHarness: Rear BumperOEM: 12052641Service: 12102747Description: 2-Way F Metri-Pack 150 Series (BK) Connector Part...
Fuel System Messages Driveline Control 4WD Driveline Control      CHANGE FUEL FILTER This message will appear on the DIC for 10-seconds when a fuel filter change is required.SeeFuel Filter Replacement. WATER IN FUEL SERVICE REQUIRED This message will come on to warn you if there is water in...
Ambient Light Sunload Sensor (CJ2) Driveline Control 4WD Driveline Control      Ambient Light/Sunload Sensor (CJ2) A B C D Connector Part InformationHarness Type: Instrument PanelOEM Connector: 12064760Service Connector: 12085208Description: 4-Way F Metri-Pack 150 Series (BK) Terminal Part...
Fuse Block - Auxiliary Fuse Holder (HP2) Driveline Control 4WD Driveline Control      Fuse Block– Auxiliary Fuse Holder (HP2) Terminal Part InformationHarness Type: Battery CableTerminal: 15326191Core/Insulation Crimp: Not AvailableDescription: Ring Terminal Fuse Block– Auxiliary Fuse Holder (HP2) Pin...
Fuel Pump Trailer Brake Control Module (Gas with JL1 and except LU3 or LY6) Driveline Control 4WD Driveline Control      Fuel Pump/Trailer Brake Control Module (Gas with JL1 andexcept L96, LU3 or LY6) 16 1 31 32 17 47 Connector Part InformationHarness Type: ChassisOEM Connector: 15491306Service Connector: 19168025Description: 47-Way F ASG...
Fuel Injector 1 (LNF) Driveline Control 4WD Driveline Control      Fuel Injector 1 (LNF) 1 2 Connector Part InformationOEM: 12589444Service: Service by Harness - See Part CatalogDescription: 2-Way F Kompakt 2.8 Series Sealed (BK) Fuel Injector 1 (LNF) Pin Wire Circuit Function...
Data Link Resistor 2 (HP2) Driveline Control 4WD Driveline Control      Data Link Resistor 2 (HP2) B A Connector Part InformationHarness Type: BodyOEM Connector: 15326801Service:19179278Description: 2-Way F GT 150 Series (BK) Terminal Part InformationTerminated Lead: PendingRelease Tool:...
X103 Instrument Panel Harness to Forward Lamp Harness Driveline Control 4WD Driveline Control      X103 Instrument Panel Harness to Forward LampHarness H A S J A J H S Connector Part InformationHarness: Instrument PanelOEM: 15326863Service:PendingDescription: 16-Way F GT 150 Series Sealed (BK) Connector...
Transfer Case Seal Removal Caution Driveline Control 4WD Driveline Control      Caution:Do not damage the sealing surfaces of the transfer cases orthe shafts when prying the seals for removal. Damaging the sealingsurface may cause leakage or require replacement of the damagedcomponent.
Electronic Power Steering Motor Control Module X3 (HP2) Driveline Control 4WD Driveline Control      Electronic Power Steering Motor Control Module X3(HP2) 1 7 13 6 Connector Part InformationHarness Type: Power Steering Motor CableOEM Connector: 6189-1092Service Connector: Service by Harness – See PartCatalogDescription:...
Turbocharger Vane Position Sensor (Diesel) Driveline Control 4WD Driveline Control      Turbocharger Vane Position Sensor (Diesel) D A Connector Part InformationHarness Type: EngineOEM Connector: 12191366Service Connector: 88988603Description: 4-Way F Metri-Pack 150 Series, Sealed(L-GY) Terminal Part...
Drive Motor Generator Power Inverter Module X8 (HP2) Driveline Control 4WD Driveline Control      Drive Motor Generator Power Inverter Module X8 (HP2) Terminal Part InformationTerminal: Service by Harness – See PartCatalogCore/Insulation Crimp: Not AvailableDescription: Ring Terminal Drive Motor Generator Power...
Speaker - Right Rear (Regular Cab) Driveline Control 4WD Driveline Control      Speaker– Right Rear (Regular Cab) B A Connector Part InformationHarness Type: BodyOEM Connector: 12052832Service Connector: 12101825Description: 2-Way F Metri-Pack 150 Series (BK) Terminal Part InformationTerminated...
Battery - Left (-) (Battery Negative Cable) (Diesel) Driveline Control 4WD Driveline Control      Battery – Left (?) (Battery NegativeCable) (Diesel) Terminal Part InformationTerminal: 0010963Core/Insulation Crimp: Not AvailableDescription: Ring Terminal Battery – Left (?) (Battery NegativeCable) (Diesel) Pin Wire...
Wheel Speed Sensor (WSS) - Right Front (except 10 Series) Driveline Control 4WD Driveline Control      Wheel Speed Sensor (WSS)– Right Front (except 10Series) 1 2 Connector Part InformationHarness: ChassisOEM: 13612509Service: 19178097Description: 2-Way F GT 1.5 Series Sealed (BK) Terminal Part InformationTerminated Lead:...
Fuse Holder X2 (Gas except LU3) Driveline Control 4WD Driveline Control      Fuse Holder X2 (Gas except LU3) Terminal Part InformationHarness Type: Generator JumperTerminal: 00010375Core/Insulation Crimp: Not AvailableDescription: Ring Terminal Fuse Holder X2 (Gas except LU3) Pin Wire Circuit...