GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

Automatic Transmission Cell 21

6 - Engine Controls - 4.3L

Automatic Transmission Control Assembly Cell 138

2 - Steering Wheel and Column

Body Control Module (BCM) Cell 51

8 - Body Control System

Camshaft Position Sensor Cell 21

6 - Engine Controls - 4.3L

Cigar Lighter Cell 19

8 - Wiring Systems

Compass/Temperature Console Cell 86

8 - Instrument Panel, Gauges and Console

Cruise Control Module Cell 34

8 - Cruise Control

Data Link Connector Cell 50

8 - Wiring Systems

Driver Information Display Module Cell 86

8 - Instrument Panel, Gauges and Console

Electronic Brake Control Module Cell 44

5 - Antilock Brake System

Engine Controls Cell 21

6 - Engine Controls - 4.3L

Engine Oil Pressure Guage Sensor Cell 21

6 - Engine Controls - 4.3L

Exhaust Gas Recirculation Valve Cell 21

6 - Engine Controls - 4.3L

Exterior Lights Cell 110

8 - Lighting Systems

Front Axle Switch Cell 38

4 - Transfer Case

Fuel Level Sensor Cell 21

6 - Engine Controls - 4.3L

Fuel Pump Relay Cell 21

6 - Engine Controls - 4.3L

Ground Distribution Cell 14

8 - Wiring Systems

Heated Oxygen Sensor, LH Front (Bank 1, Sensor 1) Cell 21

6 - Engine Controls - 4.3L

HVAC Blower Controls: Manual Cell 83

1 - HVAC Systems with A/C - Manual

Instrument Cluster Cell 81

8 - Instrument Panel, Gauges and Console

Mass Air Flow Sensor cell 21

6 - Engine Controls - 4.3L

Power Distribution Cell 10

8 - Wiring Systems

Radio Cell 150

8 - Entertainment

Sensor 5 Volt Reference Cell 21

6 - Engine Controls - 4.3L

Sensor Ground Cell 21

6 - Engine Controls - 4.3L

Trailer Wiring Provision Cell 110

8 - Lighting Systems

Transfer Case Control Module (TCCM) (NP1) Cell 38

4 - Transfer Case

Transfer Case Control Module (TCCM) (NP4) Cell 38

4 - Transfer Case

Transfer Case Select Switch Cell 38

4 - Transfer Case

Transfer Case Speed Sensor, Front Cell 38

4 - Transfer Case

Transfer Case Select Switch, RR Cell 38

4 - Transfer Case

Vehicle Control Module Cell 21

6 - Engine Controls - 4.3L

VSS Shield Ground Cell 21

6 - Engine Controls - 4.3L