Engine Controls Schematics. GMC Truck GMC C-Series Medium Duty Truck B7 2001

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2001 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Controls - 7.2L (Caterpillar) 🢒 Engine Controls Schematics

Figure 1:	CHECK GAGES (MIL), ECT Switch, MFAM, PCM and SERVICE ENGINE SOON Indicator Master Electrical Component List ECT, EOP and Low Coolant Switches, MFAM and Stoplamp Switch Interface Module AUX 1, AUX 2, ECM, ENG, ETM and FUEL Circuit Breakers, AUX, BODY POWER1 and ENGINE Fuses IGN 1 Circuit Breaker, S225, S226, S230 IGN 1 Circuit Breaker, S232, S243 Driver Information Center (DIC), ABS, CHANGE OIL, DRL, ENGINE OVERSPEED, HIGH IDLE, INTAKE HEATER, LOW AIR, LOW COOLANT, PRIMARY BRAKE and SERVICE ENGINE SOON Indicators Instrument Panel Cluster (IPC), CHECK GAUGES Indicator, Engine Coolant Temperature (ECT), and Engine Oil Pressure (EOP) Gauges and Voltmeter S105, S261 and S231 G207, G208 and S221 (L18) Instrument Panel Cluster (IPC), CHECK GAUGES Indicator, Engine Coolant Temperature (ECT), and Engine Oil Pressure (EOP) Gauges and Voltmeter S142, S178, S179, S405 and S409 (L18) G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405,G412, G413 and G414, S170 G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405,G412, G413 and G414, S170
Figure 2:	ECT, EOP and Low Coolant Switches, MFAM and Stoplamp Switch Interface Module Master Electrical Component List Data Link Connector (DLC) CHECK GAGES (MIL), ECT Switch, MFAM, PCM and SERVICE ENGINE SOON Indicator IGN 1 Circuit Breaker, S225, S226, S230 S220, S229 (LG5 - Late) S220, S229 (LG5 - Late) G108, G207, G208 and S221 (LG5) S142 and S241 (LG5) G101, S138, and S405 (LG5)
Figure 3:	Data Link Connector (DLC) Master Electrical Component List Power and Ground, Ignition 3 Relay and Fuel Heater ECT, EOP and Low Coolant Switches, MFAM and Stoplamp Switch Interface Module Engine Controls Schematic Icons Battery and BRK, HORNS and STOP LP Circuit Breakers, HD LP SW, HORN/STOP and IGN SW 1 Fuses HAZ, HORNS, PNL, STOP LP and TL/MKR Circuit Breakers S220, S229 (LG5 - Late) G108, G207, G208 and S221 (LG5) S142 and S241 (LG5) G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405,G412, G413 and G414, S170 G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405,G412, G413 and G414, S170 MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 1 of 2 S169, S210, S411 and S 414 (LG5) S169, S210, S411 and S 414 (LG5) Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 4:	Power and Ground, Ignition 3 Relay and Fuel Heater Master Electrical Component List Air (IA) Heater, INTAKE HEATER Indicator, Connector C127 and Ignition1 Relay Data Link Connector (DLC) ACC, B/U, CHASSIS, IGN 1, IGN 3 and START Circuit Breakers IGN 3 Circuit Breaker S220, S229 (LG5 - Late) S220, S229 (LG5 - Late) G108, G207, G208 and S221 (LG5) S142 and S241 (LG5) AUX 1, AUX 2, ECM, ENG, ETM and FUEL Circuit Breakers, AUX, BODY POWER1 and ENGINE Fuses AUX 1, AUX 2, ECM, ENG, ETM and FUEL Circuit Breakers, AUX, BODY POWER1 and ENGINE Fuses G101, S138, and S405 (LG5)
Figure 5:	Air (IA) Heater, INTAKE HEATER Indicator, Connector C127 and Ignition 1 Relay Master Electrical Component List Powertrain Control Module (PCM), Speedometer Adapter, Speedometer and Vehicle Speed Sensor (VSS) Power and Ground, Ignition 3 Relay and Fuel Heater Battery and BRK, HORNS and STOP LP Circuit Breakers, HD LP SW, HORN/STOP and IGN SW 1 Fuses Battery and BRK, HORNS and STOP LP Circuit Breakers, HD LP SW, HORN/STOP and IGN SW 1 Fuses G108, G207, G208 and S221 (LG5) S142 and S241 (LG5) G101, S138, and S405 (LG5) ACC, B/U, CHASSIS, IGN 1, IGN 3 and START Circuit Breakers IGN 1 Circuit Breaker, S225, S226, S230 IGN 1 Circuit Breaker, S232, S243 Driver Information Center (DIC), ABS, CHANGE OIL, DRL, ENGINE OVERSPEED, HIGH IDLE, INTAKE HEATER, LOW AIR, LOW COOLANT, PRIMARY BRAKE and SERVICE ENGINE SOON Indicators AUX 1, AUX 2, ECM, ENG, ETM and FUEL Circuit Breakers, AUX, BODY POWER1 and ENGINE Fuses Automatic Transmission Modulator, Relay and Shift Lever, Ignition 1Relay and PCM Radiator Shutter
Figure 6:	Powertrain Control Module (PCM), Speedometer Adapter, Speedometer and Vehicle Speed Sensor (VSS) Master Electrical Component List Vehicle Speed Sensor (VSS) (Late) Air (IA) Heater, INTAKE HEATER Indicator, Connector C127 and Ignition1 Relay ACC, B/U, CHASSIS, IGN 1, IGN 3 and START Circuit Breakers IGN 1 Circuit Breaker, S232, S243 Instrument Panel Cluster (IPC), Fuel Gauge, Generator Charge Indicator, Speedometer and Tachometer S169, S210, S411 and S 414 (LG5) S169, S210, S411 and S 414 (LG5) G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405,G412, G413 and G414, S170
Figure 7:	Vehicle Speed Sensor (VSS) (Late) Master Electrical Component List ECT and EOP Gauges and Sensors, Generator, Generator Charge and HI IDLE Indicators and PCM Powertrain Control Module (PCM), Speedometer Adapter, Speedometer and Vehicle Speed Sensor (VSS) Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Instrument Panel Cluster (IPC), Fuel Gauge, Generator Charge Indicator, Speedometer and Tachometer
Figure 8:	ECT and EOP Gauges and Sensors, Generator, Generator Charge and HI IDLE Indicators and PCM Master Electrical Component List EBCM, Engine Brake Relay, Switch and Solenoid Valve, and PCM Vehicle Speed Sensor (VSS) (Late) IGN 1 Circuit Breaker, S225, S226, S230 Driver Information Center (DIC), ABS, CHANGE OIL, DRL, ENGINE OVERSPEED, HIGH IDLE, INTAKE HEATER, LOW AIR, LOW COOLANT, PRIMARY BRAKE and SERVICE ENGINE SOON Indicators Instrument Panel Cluster (IPC), Fuel Gauge, Generator Charge Indicator, Speedometer and Tachometer ACC, B/U, CHASSIS, IGN 1, IGN 3 and START Circuit Breakers Instrument Panel Cluster (IPC), CHECK GAUGES Indicator, Engine Coolant Temperature (ECT), and Engine Oil Pressure (EOP) Gauges and Voltmeter G108, G207, G208 and S221 (LG5) Instrument Panel Cluster (IPC), CHECK GAUGES Indicator, Engine Coolant Temperature (ECT), and Engine Oil Pressure (EOP) Gauges and Voltmeter S105, S261 and S231 G101, S138, and S405 (LG5) S142 and S241 (LG5)
Figure 9:	EBCM, Engine Brake Relay, Switch and Solenoid Valve, and PCM Master Electrical Component List MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 1 of 2 ECT and EOP Gauges and Sensors, Generator, Generator Charge and HI IDLE Indicators and PCM S220, S229 (LG5 - Late) G108, G207, G208 and S221 (LG5) S142 and S241 (LG5)
Figure 10:	MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 1 of 2 Master Electrical Component List MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 2 of 2 EBCM, Engine Brake Relay, Switch and Solenoid Valve, and PCM HAZ, HORNS, PNL, STOP LP and TL/MKR Circuit Breakers Data Link Connector (DLC)
Figure 11:	MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 2 of 2 Master Electrical Component List Accelerator Pedal Position (APP) Sensor, Clutch Pedal Position (CPP),Turn Signal/Multifunction , High Idle and Stoplamp Switches, EBCM and PCM MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 1 of 2
Figure 12:	Accelerator Pedal Position (APP) Sensor, Clutch Pedal Position (CPP), Turn Signal/Multifunction , High Idle and Stoplamp Switches, EBCM and PCM Master Electrical Component List Automatic Transmission Modulator, Relay and Shift Lever, Ignition 1Relay and PCM MFAM, PCM, Stoplamp Switch, and C212 (Upfitter Connector) 2 of 2
Figure 13:	Automatic Transmission Modulator, Relay and Shift Lever, Ignition 1 Relay and PCM Master Electrical Component List Accelerator Pedal Position (APP) Sensor, Clutch Pedal Position (CPP),Turn Signal/Multifunction , High Idle and Stoplamp Switches, EBCM and PCM S220, S229 (LG5 - Late) ECM, ENG and FUEL Circuit Breakers G101, S138, and S405 (LG5) IGN 1 Circuit Breaker, S225, S226, S230 Air (IA) Heater, INTAKE HEATER Indicator, Connector C127 and Ignition1 Relay G108, G207, G208 and S221 (LG5) S142 and S241 (LG5)