GM Service Manual Online
For 1990-2009 cars only

Component Location

Name

Location

8A Cell 201 Figure:

Connector End View

Group No.

2nd and 3rd Gear Blockout Relay (with M/T)

RH Side of Engine Compartment, on inner Wheelhouse

13, 14

202-25

--

2nd and 3rd Gear Blockout Relay (with M/T)

Under vehicle, on LH side of the Transmission

15

15

--

A/C Refrigerant Pressure Sensor

RH Rear Engine Compartment near Blower Motor, in the A/C High Pressure Pipe

10

--

--

Bank #1, Left Front Heated Oxygen Sensor (HO2S)

Lower LH side of the Engine, Forward of the Three-way Catalytic Converter (TWC)

19

202-26

--

Bank #1, Left Rear Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Rear of the Three-way Catalytic Converter (TWC)

19

202-26

--

Bank #2, Right Front Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Forward of the Three-way Catalytic Converter (TWC)

17

202-26

--

Bank #2, Right Rear Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Rear of the Three-way Catalytic Converter (TWC)

17

202-26

--

Crankshaft (CKP) Position Sensor

Lower right side of the Engine, in the Front Engine Cover

--

--

--

Data Link Connector (DLC)

Below LH side of the I/P, right of the Steering Column

32

50-1

--

Distributor

Front of the Engine behind the Engine Coolant Pump

16

202-29

--

Engine Coolant Temperature (ECT) Sensor

Lower front of the Engine, mounted to the Coolant Pump

16

--

--

Engine Oil Temperature (EOT) Sensor

LH Rear of the Engine above the Oil Filter

19

--

--

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

Top RH front of the Engine, under the Intake Manifold Cover near Manifold Absolute Pressure (MAP) Sensor

16

--

--

Evaporative Emission Vacuum Switch

Forward of the EVAP Canister Purge Solenoid Valve, Right side of the Engine

--

--

--

Exhaust Gas Recirculation (EGR) Solenoid Valve

Top LH Rear of the Engine, under Intake Manifold Cover near the EGR Valve

18

--

--

Fuel Injectors

Top of the Engine in the Fuel Rail below Intake Manifold Cover, above each Cylinder

16, 18

--

--

Fuel Pump

Rear of the Vehicle in the Fuel Tank, part of the Fuel Pump

--

--

--

Fuel Pump Relay

Bottom RH side of the I/P in the Relay retainer

25

--

--

I/P Fuse Block

Far RH side of the I/P, in the Relay Center

25

--

--

Idle Air Control (IAC) Motor

Top RH Front of the Engine on the side of the Throttle Body

16

202-30

--

Ignition Coil

RH Front of the Engine next to the Power Steering Fluid Reservoir

16

202-31

--

Ignition Coil Module

RH Front of the Engine next to the Power Steering Fluid Reservoir

16

202-31

--

Intake Air Temperature (IAT) Sensor

Front of the Engine, in the RH side of the Air Intake Duct

16

--

--

Instrument Cluster

LH side of the I/P

84-4

--

--

Knock Sensor, LH

Bottom LH side of the Engine behind the Exhaust Manifold

19

--

--

Knock Sensor, RH

Bottom RH side of the Engine behind the Exhaust Manifold

17

--

--

Manifold Absolute Pressure (MAP) Sensor

Top RH Front of the Engine, Mounted to the Intake Manifold

16

--

--

Mass Air Flow (MAF) Sensor

Front of the Engine, in the Air Intake Duct

16

--

--

Powertrain Control Module (PCM)

LH Rear of the Engine Compartment, above the Battery

12

20-8, 9, 10 11

--

Secondary Air Injection (AIR) Bleed Valve Solenoid

Left Side of the Engine Compartment, attached to the AIR Pump

--

--

--

Secondary Air Injection (AIR) Pump

LH Front of the Engine Compartment, behind the Horn

1

--

--

Secondary Air Injection (AIR) Pump Relay

LH Front of the Engine Compartment, behind the Horn

1

202-25

--

Throttle Position (TP) Sensor

Top RH Front of the Engine on the side of the Throttle Body

1

--

--

Underhood Fuse Block #1

LH Rear Engine Compartment, forward of the Battery attached to the Bulkhead

12

--

--

UnderHood Fuse Block #2

LH Rear Engine Compartment, forward of the Battery attached in the inner Wheelhouse

12

--

--