GM Service Manual Online
For 1990-2009 cars only

Reference on Schematic

Section Number - Subsection Name

AM/FM Stereo Radio Cell 150

8A -- Electrical Diagnosis

Automatic Transmission Cell 21

6 -- Engine Controls -- 4.3L

Camshaft Position Sensor Cell 21

6 -- Engine Controls -- 4.3L

Cigarette Lighter Cell 19

8A -- Electrical Diagnosis

Cruise Control Module Cell 34

8A -- Electrical Diagnosis

Data Link Connector Cell 50

8A -- Electrical Diagnosis

Electronic Brake Control Module Cell 44

5 -- ABS

Engine Controls Cell 21

6 -- Engine Controls -- 4.3L

Engine Oil Pressure Gauge Sensor Cell 21

6 -- Engine Controls -- 4.3L

Exhaust Gas Recirculation Valve Cell 21

6 -- Engine Controls -- 4.3L

Exterior Lights Cell 110

8A -- Electrical Diagnosis

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

Fuel Tank Pressure Sensor Cell 21

6 -- Engine Controls -- 4.3L

Ground Distribution Cell 14

8A -- Electrical Diagnosis

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

6 -- Engine Controls -- 4.3L

Heated Oxygen Sensors Cell 21

6 -- Engine Controls -- 4.3L

HVAC Blower Controls: Manual Cell 63

8A -- Electrical Diagnosis

Instrument Cluster Cell 81

8A -- Electrical Diagnosis

Mass Air Flow Sensor Cell 21

6 -- Engine Controls -- 4.3L

Power Distribution Cell 10

8A -- Electrical Diagnosis

Sensor 5 Volt Reference Cell 21

6 -- Engine Controls -- 4.3L

Sensor Ground Cell 21

6 -- Engine Controls -- 4.3L

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

4 -- Transfer Case

Transfer Case Select Switch Cell 38

4 -- Transfer Case

Truck Body Control Module Cell 51

8A -- Electrical Diagnosis

Vehicle Control Module Cell 21

6 -- Engine Controls -- 4.3L

VSS Shield Ground Cell 21

6 -- Engine Controls -- 4.3L