GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View (8A Cell 201 Page #)

Figure

Connector Eng View

24X Crankshaft Position (CKP) Sensor

Lower right side of engine

4

8

--

7X Crankshaft Position (CKP) Sensor

Lower right side of engine

4

8

--

A/C Compressor Relay

Right side engine compartment

5

10

202-38

A/C Refrigerant Pressure Sensor

Right hand side of engine compartment

8

15

--

Camshaft Position (CMP) Sensor

Right hand side of engine, below cover

5

9

--

Data Link Connector (DLC)

On bottom of Instrument Panel, right of steering column

19

37

202-11

Engine Coolant Temperature (ECT) Sensor

Top left hand side of engine

5

9

--

Evaporative Canister Purge Solenoid Valve

Rear of Engine

2

4

--

Evaporative Purge Vacuum Switch

LH rear of engine

2

4

--

Exhaust Gas Recirculation (EGR) Valve

Upper left hand side of engine

3

6

202-40

Fuel Injectors

Top of engine, mounted to fuel rail, at each cylinder intake port

5

9

--

Fuel Pressure Regulator

Mounted on the Fuel Injector Rail, top, left hand side of engine

--

--

--

Fuel Pump/Fuel Level Sender

Mounted inside fuel tank

14

27

--

Fuel Pump Relay

Right hand side engine compartment

5

10

202-41

Fuse Block

LH side of Instrument Panel

18

35

--

Generator

Top center right hand side of engine

3

6

202-42

Heated Oxygen sensor 1 (HO2S1)

Rear of engine, in exhaust manifold

3

6

202-41

Heated Oxygen sensor 2 (HO2S2)

In exhaust system, behind Catalytic Converter

6

11

202-44

Idle Air Control Valve (IAC)

Top of engine, front of Throttle Body Assembly

4

7

202-42

Ignition Control Module (ICM)

Top right hand front of engine

3

6

202-40

Intake Air Temperature (IAT) Sensor

Left hand front of engine compartment, on air intake duct

4

7

--

Knock Sensor (KS)

Front of engine, above starter

4

8

--

Malfunction Indicator Lamp (MIL)

Upper right hand side of Instrument Panel

--

Refer to I/P diagnosis

--

Manifold Absolute Pressure (MAP) Sensor

Top rear of engine, on intake manifold

1

2

--

Mass Air Flow (MAF) Sensor

Left hand front of engine compartment, in air cleaner duct

11

21

--

Powertrain Control Module (PCM)

Right hand side of lower I/P

6

12

202-29

Positive Crankcase Ventilation Valve

Top, right hand, center of engine, below Manifold Absolute Pressure (MAP) Sensor

--

--

--

Primary Cooling Fan

Front center of engine compartment

8

16

--

Primary Cooling Fan Relay

Right hand side of engine compartment

5

10

202-41

SMCC II Cruise Control Module

Left hand rear of engine compartment, center front of dash

5

10

202-10

Throttle Body

Mounted to the Upper Intake Manifold, top, left hand side of engine

--

--

--

Throttle Position (TP) Sensor

Top of engine, on Throttle Body Assembly

4

7

--

TCC Brake Switch

Lower left hand side of I/P

18

36

--

Transaxle Range Switch / Park Neutral Position (PNP) Switch

Rear left hand side of engine compartment, mounted to top of transaxle

2

4

202-23

Vehicle Speed Sensor (VSS)

Lower right hand of engine on Transaxle

2

4

--