GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Group No.

Vehicle Control Module (VCM)

Engine Compartment, near BPMV Module

201-24 Fig. 37

--

3.670

Data Link Connector (DLC)

Under LH side of I/P

201-26 Fig. 41

202-16

--

I/P Fuse Block

Lower LH side of I/P

201-23 Fig. 35

--

--

Underhood Fuse Relay Center

LH Rear of Engine Compartment, on Fender

201-4 FIg. 8

--

--

Fuel Pump Prime Connector

I/P Harness, approx. 20 cm into the Fuse- Relay Center

--

--

--

Fuel Injectors # 1 Through #6 VIN (W)

In Intake Manifold

--

202-18

3.300

Idle Air Control (IAC) Valve Motor

Attatched to RH rear of Throttle Body

201-6 Fig. 12

--

3.820

Linear Exhaust Gas Recirculation (EGR) Valve VIN (W)

Front of Engine near Thermostat Housing

201-7 Fig. 13

--

3.670

Canister Purge Solenoid

RH Center on Intake Manifold

--

--

3.140

Ignition Coil Driver

RH side rear of Engine

201-7 Fig 13

202-14

--

Fuel Pump Relay

Located in Underhood Fuse Relay Center

201-4

--

--

Manifold Absolute Pressure (MAP) Sensor VIN (W)

Top RH Center of Intake manifold

201-7 Fig. 13

--

3.682

Heated Oxygen Sensors #1 through #4

In Exhaust Pipe, in front and back of Catalytic Converters

201-18 Fig. 26

--

3.682

Throttle Position (TP)Sensor

On the side of the Throttle Body

201-6 Fig. 12

--

3.682

Engine Coolant Temperature (ECT) Sensor

RH Top of Engine near Thermostat Housing

201-6 Fig. 12

--

3.682

Mass Air Flow (MAF) Sensor

Air Intake Duct near air filter

201-13 Fig. 19

--

3.682

Vehicle Speed Sensor (VSS)

LH Rear side of transmission (LH side of transfer case w/ 4WD)

201-18 Fig. 26

--

3.682

Camshaft Position Sensor

In Distributor

201-7 Fig. 13

--

--

Input Speed Sensor, Transmission (4L80E automatic transmission)

LH side of Transmission, near front

201-19 Fig. 28

--

--

Knock Sensor VIN (W)

Rear of Engine on Engine Block

201-8 Fig. 14

--

2.383

Evaporative Emission Purge Solenoid Vacuum Switch

Top of Engine

201-7 Fig. 13

--

3.140

Intake Air Temperature (IAT) Sensor

In Air Intake duct

201-13 Fig. 19

--

3.682

Crankshaft Position (CKP) Sensor

Lower RH front portion of Engine block, near crankshaft

201-7 Fig. 13

--

2.383

Distributor

Top of Engine at rear bulkhead

--

--

--

Ignition Coil

RH side rear of engine

201-14 Fig. 20

--

--

Fuel Pump Oil Pressure Switch and Sender

Rear Top Center of Engine, behind Distributor

201-8 Fig. 14

202-40

1.800

A/C Compressor Clutch Cycling Switch

In low pressure refrigerant line

210-10 Fig. 16

--

--

A/C High Pressure cutout Switch

On rear portion of A/C compressor

201-6 Fig. 12

--

--

Brake Pressure Modulator Valve (BPMV)

Near Brake Master Cylinder, at LH front wheelhouse

201-22 Fig. 33

--

--

Wheel Speed Sensor, LH front

At LH front wheel

--

--

--

Wheel Speed Sensor, RH front

At RH front wheel

--

--

--