GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power, Ground, DLC and MIL


Object Number: 378471  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
Cell 10: IGN 2 MaxiFuse®, and Ignition Switch
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Ignition Control Module, CMP and CKP
Engine Controls Components
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Cell 10: ABS, CRANK SIGNAL BCM CLUSTER, HEATED MIRROR, and IGN 0:CLUSTER PCM & BCM Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: ABS BCM, CD CHANGER, CIGAR LTR AUX POWER, INADV POWER BUS,and RADIO HVAC RFA CLUSTER DATA LINK Fuses
Handling ESD Sensitive Parts Notice
Cell 14: LH IP Ground G203
Cell 14: RH IP Ground G200
Cell 14: L36 Engine Grounds G100, G111, and G113
Cell 14: LH IP Ground G203
Figure 2:

Ignition Control Module, CMP and CKP


Object Number: 378473  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
Fuel Pump and Fuel Level Sensors
Power, Ground, DLC and MIL
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Engine Controls Components
Figure 3:

Fuel Pump and Fuel Level Sensors


Object Number: 378477  Size: FS
Engine Data Sensors
Handling ESD Sensitive Parts Notice
Cell 10: Underhood Accessory Wiring Junction Block
Cell 14: L36 Engine Grounds G100, G111, and G113
Engine Controls Components
Fuel Injectors
Ignition Control Module, CMP and CKP
OBD II Symbol Description Notice
Engine Data Sensors
Handling ESD Sensitive Parts Notice
Cell 14: RH Body Ground G302 (cont.)
Cell 14: L36 Engine Grounds G100, G111, and G113
Handling ESD Sensitive Parts Notice
Figure 4:

Fuel Injectors


Object Number: 378479  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
Engine Data Sensors
Fuel Pump and Fuel Level Sensors
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Engine Controls Components
Figure 5:

Engine Data Sensors


Object Number: 378481  Size: FS
Handling ESD Sensitive Parts Notice
MAF, IAC, EGR, and EVAP
Fuel Pump and Fuel Level Sensors
Automatic Transaxle Internal Controls and TCC
Handling ESD Sensitive Parts Notice
OBD II Symbol Description Notice
Fuel Injectors
Heated Oxygen Sensor (HO2S) #1 and #2
Engine Controls Components
Figure 6:

Heated Oxygen Sensor (HO2S) #1 and #2


Object Number: 378484  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
MAF, IAC, EGR, and EVAP
Engine Data Sensors
OBD II Symbol Description Notice
Engine Controls Components
Cell 14: L36 Engine Ground G117
Handling ESD Sensitive Parts Notice
Figure 7:

MAF, IAC, EGR, and EVAP


Object Number: 378486  Size: FS
Cell 10: ENG EMIS Fuse
Cell 10: Underhood Accessory Wiring Junction Block
Cell 14: L36 Engine Grounds G100, G111, and G113
Cell 14: L36 Engine Grounds G100, G111, and G113
Handling ESD Sensitive Parts Notice
Engine Data Sensors
Engine Controls Components
Cruise Control Module and VSS
Heated Oxygen Sensor (HO2S) #1 and #2
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 8:

Cruise Control Module and VSS


Object Number: 378489  Size: FS
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Indicators
MAF, IAC, EGR, and EVAP
OBD II Symbol Description Notice
Engine Controls Components
Cruise Control System Circuit Description
Figure 9:

Indicators


Object Number: 378491  Size: FS
Cell 10: IGN 2 MaxiFuse®, and Ignition Switch
Engine Controls Components
Transaxle Range Switch
Cruise Control Module and VSS
Handling ESD Sensitive Parts Notice
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Cell 14: L36 Engine Grounds G100, G111, and G113
Cell 14: L36 Engine Grounds G100, G111, and G113
Figure 10:

Transaxle Range Switch


Object Number: 378492  Size: FS
Cell 10: IGN 2 MaxiFuse®, and Ignition Switch
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Handling ESD Sensitive Parts Notice
Cell 14: L36 Engine Ground G117
Engine Controls Components
Automatic Transaxle Internal Controls and TCC
Indicators
OBD II Symbol Description Notice
Figure 11:

Automatic Transaxle Internal Controls and TCC


Object Number: 378494  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
Cell 10: ENG EMIS Fuse
Cell 10: Underhood Accessory Wiring Junction Block
A/T Fluid Pressure Manual Valve Position Switch, PC SOL Valve and A/T ISS Sensor
Transaxle Range Switch
OBD II Symbol Description Notice
Engine Data Sensors
Handling ESD Sensitive Parts Notice
Engine Controls Components
Figure 12:

A/T Fluid Pressure Manual Valve Position Switch, PC SOL Valve and A/T ISS Sensor


Object Number: 141991  Size: FS
Handling ESD Sensitive Parts Notice
A/C Compressor Controls
Engine Controls Components
Automatic Transaxle Internal Controls and TCC
OBD II Symbol Description Notice
Handling ESD Sensitive Parts Notice
Figure 13:

A/C Compressor Controls


Object Number: 378498  Size: FS
Cell 10: IGN 1 MaxiFuse®, and Ignition Switch
Cell 10: IGN 2 MaxiFuse®, and Ignition Switch
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 10: CRUISE, HVAC, and LOW BLOWER Fuses
Cell 10: AIR BAG, CLUSTER, DRL, PCM BCM U/H RELAY, and TURN SIGNALSCORN LPS Fuses
Cell 14: L36 Engine Grounds G100, G111, and G113
Cell 14: L36 Engine Grounds G100, G111, and G113
Cell 10: Underhood Accessory Wiring Junction Block
Handling ESD Sensitive Parts Notice
Cell 14: L36 Engine Ground G117
Cell 14: L36 Engine Ground G117
Cell 10: Underhood Accessory Wiring Junction Block
Engine Controls Components
Cooling Fans Controls
A/T Fluid Pressure Manual Valve Position Switch, PC SOL Valve and A/T ISS Sensor
OBD II Symbol Description Notice
Figure 14:

Cooling Fans Controls


Object Number: 378500  Size: FS
Cell 10: Underhood Accessory Wiring Junction Block
Cell 14: L36 Engine Ground G117
Cell 14: L36 Engine Ground G117
A/C Compressor Controls
OBD II Symbol Description Notice
Engine Controls Components
Handling ESD Sensitive Parts Notice