GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch

Part of the A/C compressor

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C Manual

A/C Compressor Clutch Diode (2.2L Engine)

In the engine harness, 20 cm (7.87 in) from the A/C compressor clutch connector

HVAC Component Views in HVAC Systems with A/C - Manual

--

A/C Compressor Clutch Relay

In the underhood fuse block

Power and Grounding Component Views in Wiring Systems

--

A/C Refrigerant Pressure Sensor (2.2L Engine)

On the A/C evaporator tube

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Body Relay Block

LH of the dash, right of the IP fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Body Control Module (BCM) Connector C1, Brown(24 Cavities)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Body Control Module (BCM) Connector C2, Blue (24 Cavities)

At the lower rear of the IP, on the heater

Body Control System Component Views in Body Control System

Body Control System Connector End Views in Body Control System

Camshaft Position (CMP) Sensor (2.2L Engine)

To the right of the engine, forward of the coil packs

Engine Controls Component Views

Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor (2.2L Engine)

To the right of the engine, below the coil packs

Engine Controls Component Views

Engine Controls Connector End Views

Cruise Control Module (CCM)

At the left rear of the engine compartment, on the cowl

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

To the lower left of the IP

Data Link Communications Component Views in Wiring Systems

Data Link Communications Connector End Views in Wiring Systems

Electronic Brake Control Module (EBCM)

Part of the brake pressure modulator valve (BPMV), at the left rear wheelwell

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Electronic Brake Control Module (EBCM) Connector C1 (10 Cavities)

The body harness connector on the LH of the EBCM

Antilock Brake System Component Views in Antilock Brakes

Antilock Brake System Connector End Views in Antilock Brakes

Engine Coolant Temperature (ECT) Sensor (2.2L Engine)

At the front of the engine, in the coolant piping

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative (EVAP) Emission Canister Purge Valve (2.2L Engine)

RH side of engine above the coil packs

Engine Controls Component Views

Engine Controls Connector End Views

Evaporative (EVAP) Emission Canister Vent Valve

Crossmember area of the fuel tank, rear center of the crossmember behind the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Injectors #1-4 (2.2L Engine)

On the lower manifold assembly

Engine Controls Component Views

--

Fuel Pump and Sender

Internal to the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

Fuel Pump Relay

In the underhood fuse block

Power and Grounding Component Views in Wiring Systems

--

Fuel Tank Pressure Sensor

The three wire connector at the top of the fuel tank

Engine Controls Component Views

Engine Controls Connector End Views

Heated Oxygen Sensor (HO2S) Bank 1, Sensor 1 (2.2L Engine)

In the exhaust pipe, to the rear of the catalytic converter

Engine Controls Component Views

Engine Controls Connector End Views

Heater and A/C Controller (w/ Man A/C) Connector C2 (3 Cavities) (Heater Control Lamp)

Next to the vacuum harness connector

HVAC Component Views in HVAC Systems with A/C - Manual

HVAC Connector End Views in HVAC Systems with A/C - Manual

Idle Air Control (IAC) Valve (2.2L Engine)

Top of the engine, on the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Control Module (ICM) (2.2L Engine) Connector C1 (2 Cavities)

RH rear of the engine, near the grounding strap

Engine Controls Component Views

Engine Controls Connector End Views

Ignition Control Module (ICM) (2.2L Engine) Connector C2 (6 Cavities)

RH rear of the engine, near the grounding strap

Engine Controls Component Views

Engine Controls Connector End Views

Instrument Cluster

In the IP, ahead of the steering column

Instrument Panel, Gages, and Console Component Views in Instrument Panel, Gauges and Console

Instrument Panel, Gages, and Console Connector End Views in Instrument Panel, Gauges and Console

Intake Air Temperature (IAT) Sensor (2.2L Engine)

LF of the engine compartment, in the air intake duct

Engine Controls Component Views

Engine Controls Connector End Views

IP Fuse Block

LH of the IP, near the door jamb switch, LF

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Knock Sensor (KS) (2.2L Engine)

Lower RH of the engine, below the coil packs

Engine Controls Component Views

Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor (2.2L Engine)

Top RH of the engine, on the intake manifold

Engine Controls Component Views

Engine Controls Connector End Views

Oxygen Sensor, Bank 1 Sensor 1 (2.2L Engine)

LH side of the engine, in the exhaust manifold crossover pipe

Engine Controls Component Views

Engine Controls Connector End Views

Powertrain Control Module (PCM) Connector  C1 (2.2L Engine)

On the right of the engine compartment

Engine Controls Component Views

Powertrain Control Module Connector End Views

Powertrain Control Module (PCM) Connector  C2 (2.2L Engine)

On the right of the engine compartment

Engine Controls Component Views

Powertrain Control Module Connector End Views

Radio Connector C2, (10 Cavities)

Center of IP

Entertainment Component Views in Entertainment

Entertainment Connector End Views in Entertainment

Throttle Position (TP) Sensor (2.2L Engine)

Top of the engine, forward of the throttle body

Engine Controls Component Views

Engine Controls Connector End Views

Underhood Fuse Block

On top of the left inner wheelwell

Power and Grounding Component Views in Wiring Systems

--

Underhood Fuse Block Connector C1 (68 Cavities) (Body)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C2 (68 Cavities) (Engine)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Underhood Fuse Block Connector C3 (32 Cavities) (Chassis)

Below the underhood fuse block

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Speed Sensor (VSS) (2.2L Engine w/ M/T)

LH Rear of the M/T

Engine Controls Component Views

Engine Controls Connector End Views

C101 (10 Cavities) (2.2L Engine)

Engine harness to body harness, to the right of the engine compartment, near the PCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C104 (6 Cavities) (2.2L Engine)

Chassis to engine harness, LH of the transmission

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C111 (5 Cavities) (2.2L Engine)

Rear of the engine, at the fuel rail

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C203 (116 Cavities)

Body harness to IP harness, to the RH of the IP

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G102 (2.2L Engine)

On the engine harness, RH front of the engine block, under the generator

Harness Routing Views in Wiring Systems

--

G103 (2.2L Engine)

(CKT 351) Engine harness, RH front of the engine block, under the generator

Harness Routing Views in Wiring Systems

--

G105 (2.2L Engine)

(CKT Engine harness, to the RH rear of the engine block, near the ignition control module

Harness Routing Views in Wiring Systems

--

G200

(CKT 1850) Body harness, on the LH front of the IP, above P 100

Harness Routing Views in Wiring Systems

--

G201

(CKT 1850) Body harness, on the LH front of the IP, above P 100

Harness Routing Views in Wiring Systems

--

G402

(CKT 1750) Chassis harness, near the top center of the second crossmember from rear, with the fuel filler neck ground strap

Harness Routing Views in Wiring Systems

--

P100

IP bulkhead pass-through,LH rear of the engine compartment, on the cowl

Harness Routing Views in Wiring Systems

--

S103 (w/ A/C)

(CKT 350) Engine harness, on the anode side of the A/C compressor clutch diode, in the breakout to the A/C compressor and cutoff switch

Harness Routing Views in Wiring Systems

--

S104 (w/ A/C)

(CKT 59) At the engine harness, on the cathode side of the A/C compressor clutch diode, in the breakout to the A/C compressor and cutoff switch

Harness Routing Views in Wiring Systems

--

S106 (2.2L Engine)

(CKT 351) Engine harness, between the breakouts to the PCM and to the fuel injector connector, 25 cm (9.84 in) from the breakouts to the PCM

Harness Routing Views in Wiring Systems

--

S128 (2.2L Engine)

(CKT 120) Injector harness between the breakout to Injectors #3 and #4

Harness Routing Views in Wiring Systems

--

S140 (w/ M/T)

(CKT 450) Engine harness, on the engine harness breakout to the M/T VSS, 7 cm (2.7 in) from the breakout

Harness Routing Views in Wiring Systems

--

S152 (2.2L Engine)

(CKT 351, CKT 413, CKT 451) Engine harness, between the breakouts for the fuel injector connector and the ignition control module, 7cm (2.75 in) from G105

Harness Routing Views in Wiring Systems

--

Splice Pack SP200

(CKT 41, CKT 241, CKT 341, CKT 817) Strapped to the body harness, in the center front of the IP, to the right of SP 204

Harness Routing Views in Wiring Systems

--

Splice Pack SP201

Body harness, to the left of the IP, below the IP fuse block, taped to the body harness

Harness Routing Views in Wiring Systems

--

Splice Pack SP202

(CKT 379, CKT 1850) Strapped to the body harness, at the left center of the IP

Harness Routing Views in Wiring Systems

--

Splice Pack SP422 (2.2L Engine)

(CKT 510) Chassis harness, on the LH frame rail, behind the crossmember at the transmission

Harness Routing Views in Wiring Systems

--