Engine Controls Schematics. GMC Truck GMC C-Series Medium Duty Truck B7 2002

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Controls - 7.2L (Caterpillar) 🢒 Engine Controls Schematics

Figure 1:	CHECK GAGES (MIL), Power and Grounds for PCM and SERVICE ENGINE SOON Indicator Master Electrical Component List Engine Controls Schematics - ECT, EOP and Low Coolant Switches, MFAM and Stoplamp Switch Interface Module Ground Distribution Schematics - S169, S210, S411 and S414 LG5 Ground Distribution Schematics - G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405, G412, G413, G414, S170 Ground Distribution Schematics - G100, G101, G103, G107, G117, G119, G120, G121, G124, G400, G401, G405, G412, G413, G414, S170 Data LInk Connector (DCL) Schematics - Terminal 2 LG5 Data LInk Connector (DCL) Schematics - Terminals 6,7,12 and 15 LG5 Instrument Cluster Schematics - DIC, ABS, CHG OIL, DRL, EOS and HI Ind. Power Distribution Schematics - IGN 1 Circuit Breaker, S232, S243 Power Distribution Schematics - IGN 1 Circuit Breaker, S225, S226, S230 Power Distribution Schematics - IGN 1 Circuit Breaker, S232, S243
Figure 2:	VSS signals, APP Sensor, Clutch Start Switch, High Idle and PCM Master Electrical Component List Engine Controls Schematics - Air (IA) Heater, Intake Heater Indicator, Connector C127 and Ignition 1 Relay Engine Controls Schematics - Check Gages (MIL), ECT Switch, MFAM, PCM and Service Engine Soon Indicator Cruise Control Schematics - LG5 1of 2 ABS Schematics - EBCM, PCM, BFL/SW, Ign SW, St/LP SW and MAM Instrument Cluster Schematics - IPC, Fuel Gage, Gen Chg Ind and Tach Manual Transmission Schematics - VSS, CPP, TFT Automatic Transmission Controls Schematics - Data Link Connector (DCL), Powertrain Control Module (PCM), Vehicle Speed Signal
Figure 3:	Air (IA) Heater, INTAKE HEATER Indicator, Connector C127, Generator and Ignition 1 Relay Master Electrical Component List 02 MD-B7 Engine Controls Schematics - Power and Ground, Ignition 3 Relay and Fuel Heater Engine Controls Schematics - ECT, EOP and Low Coolant Switches, MFAM and Stoplamp Switch Interface Module Automatic Transmission Controls Schematics - Power and Ground, MIL (MX4/MTW) Radiator Shutter Schematics - Radiator Shutter Valve Assembly, Engine Coolant Temperature (ECT) Switch Power Distribution Schematics - Aux 1, Aux 2, ECM, ENG, ETM and Fuel Circuit Breakers, Aux, Body Power 1 and Engine Fuses Power Distribution Schematics - IGN 1 Circuit Breaker, S225, S226, S230 Power Distribution Schematics - IGN 1 Circuit Breaker, S232, S243 Instrument Cluster Schematics - DIC, ABS, CHG OIL, DRL, EOS and HI Ind. Ground Distribution Schematics - G108, G207, G208 and S221 LG5 Ground Distribution Schematics - S142 and S241 LG5 Ground Distribution Schematics - G101, S138, S405 and S409 L18 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
Figure 4:	Power and Ground for Ignition 3 Relay and Fuel Heater Master Electrical Component List Engine Controls Schematics - ECT and EOP Gages and Sensors, Generator, Generator Charge and HI IDLE Indicators and PCM Engine Controls Schematics - Air (IA) Heater, Intake Heater Indicator, Connector C127 and Ignition 1 Relay Ground Distribution Schematics - G101, S138, S405 and S409 L18 Power Distribution Schematics - Aux 1, Aux 2, ECM, ENG, ETM and Fuel Circuit Breakers, Aux, Body Power 1 and Engine Fuses Power Distribution Schematics - Aux 1, Aux 2, ECM, ENG, ETM and Fuel Circuit Breakers, Aux, Body Power 1 and Engine Fuses Power Distribution Schematics - IGN 3 Circuit Breaker Power Distribution Schematics - IGN 3 Circuit Breaker Ground Distribution Schematics - S220, S229 LG5 Ground Distribution Schematics - S220, S229 LG5 Ground Distribution Schematics - G108, G207, G208 and S221 LG5 Ground Distribution Schematics - S142 and S241 LG5
Figure 5:	IPC Signals, Transmission Signals, Cruise Control Signals Master Electrical Component List 02 MD-B7 Engine Controls Schematics - Power and Ground, Ignition 3 Relay and Fuel Heater Cruise Control Schematics - LG5 1of 2 Two Speed Rear Axle Schematics Instrument Cluster Schematics-Stop Lamp Switch Interface Module, MAM Brake Warning System Schematics - LG5 1of 2 Engine Exhaust Brake Schematics- Exhaust Brake Switch, Engine Brake Actuator Control Valve, Engine Brake Relay Instrument Cluster Schematics - DIC, ABS, CHG OIL, DRL, EOS and HI Ind. Automatic Transmission Controls Schematics - Data Link Connector (DCL), Powertrain Control Module (PCM), Vehicle Speed Signal Instrument Cluster Schematics-Stop Lamp Switch Interface Module, MAM Automatic Transmission Schematics - A/T Modulator and Relay