GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

A/C Compressor Clutch Coil

Part of the A/C compressor, on the lower right front of the engine

Refer to HVAC Component Views in HVAC Manual System (RPO C 60/CJ 3) and

Refer to HVAC Component Views in HVAC Automatic System (CJ 2)

Refer to HVAC Connector End Views in HVAC Manual System (RPO C 60/CJ 3) and

Refer to HVAC Connector End Views in HVAC Automatic System (CJ 2)

A/C Refrigerant Pressure Sensor

Left side of the engine compartment on the accumulator

Refer to HVAC Component Views in HVAC Manual System (RPO C 60/CJ 3) and

Refer to HVAC Component Views in HVAC Automatic System (CJ 2)

Refer to HVAC Connector End Views in HVAC Manual System (RPO C 60/CJ 3) and

Refer to HVAC Connector End Views in HVAC Automatic System (CJ 2)

Automatic Transaxle

Lower left side of the engine compartment

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Bank 1 Knock Sensor (KS) (VIN K & VIN 1)

Front of the engine, above the starter

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Bank 2 Knock Sensor (KS)

Rear of the engine, below the exhaust manifold

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Body Control Module (BCM)

Below the left side of the IP, left of the steering column

Refer to Body Control System Component Views in Body Control Module System

Refer to Body Control System Connector End Views in Body Control Module System

Camshaft Position (CMP) Sensor (VIN K & VIN 1)

Right rear side of the engine, above the crankshaft pulley

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Crankshaft Position (CKP) Sensor (VIN K & VIN 1)

Right side of the engine at the end of the crankshaft, behind the harmonic balancer

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Cruise Control Module

Left side of the engine compartment, mounted to the strut tower

Refer to Engine Electrical Component Views in Cruise Control System Component Views

Refer to Cruise Control Connector End Views in Cruise Control System Connector End Views

Data Link Connector (DLC)

On the bottom of the IP, right of the steering column

Refer to Data Link Communications Component Views in Data Link Communications System

Refer to Data Link Communications Connector End Views in Data Link Communications System

Driver Information Display (DID)

Right side of the instrument cluster

Refer to Driver Information System Components Views in Instrument Panel, Gauges and Console/Driver Information Systems

Refer to Driver Information Systems Connector End Views in Instrument Panel, Gauges and Console/Driver Information Systems

Electronic Brake Traction Control Module (EBTCM)

Left side of the engine compartment, part of the brake pressure modulator valve, mounted to the left strut tower

Refer to Antilock Brake System Component Views in Anti-Lock Brake System

Refer to Antilock Brake System Connector End Views in Anti-Lock Brake System

Engine Coolant Fan Motor

Front of the engine compartment, mounted to the radiator

Refer to Cooling System Component Views in Engine Cooling Systems

Refer to Cooling System Connector End Views in Engine Cooling Systems

Engine Coolant Temperature (ECT) Sensor

Top left side of the engine below the throttle body

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Engine Oil Level Indicator Switch (VIN K & VIN 1)

Front center of the engine oil pan

Refer to Instrument Cluster and HUD Component Views in Instrument Panel Systems

Refer to Instrument Cluster and HUD Connector End Views in Instrument Panel Systems

Engine Oil Pressure Indicator Switch (VIN K & VIN 1)

Right rear of the engine, next to the oil filter

Refer to Instrument Cluster and HUD Component Views in Instrument Panel Systems

Refer to Instrument Cluster and HUD Connector End Views in Instrument Panel Systems

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (VIN 1)

Top front of the engine, on the intake manifold near the fuel injectors

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (VIN K)

Top front of the engine, on the intake manifold near the fuel injectors

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Purge Vacuum Diagnostic Switch (VIN 1)

Top front of the engine, on the intake manifold near the fuel injectors

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Evaporative Emissions (EVAP) Canister Purge Vacuum Diagnostic Switch (VIN K)

Top rear of the engine, on the intake manifold behind the generator

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Evaporative Emission (EVAP) Canister Vent Solenoid

Behind the left side of the rear fascia splash shield, behind the wheel well

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Exhaust Gas Recirculation (EGR) Valve (VIN K & VIN 1)

Upper left side of the engine, near the throttle body

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Fuel injectors

Top of the engine at each cylinder intake port

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Fuel Pump Resistor

Mounted to the outside of the right front frame rail forward of the front wheel

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Fuel Tank

Below the rear of the vehicle, forward of the rear axle

Refer to Engine Controls Component Views

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Fuse Block

Right side of the IP, in the IP compartment opening

Refer to Power and Grounding Component Views in Wiring Systems Power and Grounding

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Generator (VIN K & VIN 1)

Top rear right side of the engine

Refer to Engine Electrical Component Views in Engine Electrical Systems

Refer to Engine Electrical Connector End Views in Engine Electrical Systems

Heated Oxygen Sensor 1 (H02S 1)

Rear of the engine, mounted in the exhaust manifold

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Heated Oxygen Sensor 2 (H02S 2)

In the exhaust system, behind the catalytic converter

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Heater-A/C Control (C 60)

Center of the IP

Refer to HVAC Component Views in HVAC Manual (RPO C 60/CJ 3) System

Refer to HVAC Connector End Views in HVAC Manual (RPO C 60/CJ 3) System

Heater-A/C Control (CJ 2)

Center of the IP

Refer to HVAC Component Views in HVAC Automatic (RPO CJ 3) Systems

Refer to HVAC Connector End Views in HVAC Automatic (RPO CJ 3) Systems

Idle Air Control (IAC) Valve (VIN K & VIN 1)

Top of the engine on the front of the throttle assembly

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Ignition Control Module (ICM) (VIN K & VIN 1)

Top right of the engine

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Ignition Control Module (ICM) (VIN M)

Top center rear of the engine

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Instrument Cluster

Left side of the IP

Refer to Instrument Cluster and HUD Component Views in Instrument Panel, Gauges and Console System

Refer to Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console System

Instrument Cluster Head-Up Display (HUD)

Top of the left side of the IP

Refer to Instrument Cluster and HUD Component Views in Instrument Panel, Gauges and Console System

Refer to Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console System

Intake Air Temperature (IAT) Sensor

Left front of the engine compartment in the air cleaner duct

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor (VIN 1)

Top rear of the engine near the fuel injectors

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Manifold Absolute Pressure (MAP) Sensor (VIN K)

Top right side of the intake manifold

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Mass Air Flow (MAF) Sensor (VIN K & VIN 1)

Left front of the engine, part of the throttle body assembly

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Performance Shift Switch

Part of the console shifter handle

Refer to Transmission Component Location in Automatic Transaxle 4T65-E Systems

Refer to Automatic Transmission Inline Harness Connector End View in Automatic Transaxle 4 T 65-E Systems

Powertrain Control Module (PCM)

Left side of the engine compartment, inside the air cleaner assembly

Refer to Engine Controls Component Views

Refer to Powertrain Control Module Connector End Views

Stop Lamp Switch

Below the left side of the IP, in the right side of the brake pedal bracket

Refer to Lighting Systems Component Views in Lighting Systems

Refer to Lighting Systems Connector End Views in Lighting Systems

Supercharger Bypass Valve

Top front of the engine near the front fuel injectors

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Throttle Position (TP) Sensor (VIN K & VIN 1)

Top of the engine on the throttle assembly

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Transaxle Range Switch

Left rear of the engine compartment, on the transaxle

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

Trip Calculator

Right side of the instrument cluster

Refer to Instrument Cluster and HUD Component Views in Instrument Panel, Gauges and Console Driver Information Systems

Refer to Instrument Cluster and HUD Connector End Views in Instrument Panel, Gauges and Console Driver Information Systems

Underhood Accessory Wiring Junction Block

Right side of the engine compartment, mounted to the strut tower

Refer to Power and Grounding Component Views in Wiring Systems Power and Grounding

Refer to Power and Grounding Connector End Views in Wiring Systems Power and Grounding

Vehicle Speed Sensor (VSS)

Right rear of the engine compartment, in the transaxle

Refer to Engine Controls Component Views

Refer to Engine Controls Connector End Views

C101 (20 cavities)

IP wiring harness to the engine wiring harness, on the left side of the engine compartment on the front of the strut tower

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C110 (10 cavities)

Engine wiring harness to the ignition control module wiring harness, on the top of the engine near the ignition control module

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C111 (7 cavities)

Engine to the automatic transaxle harness, on the left side of the engine compartment, on the top of the transmission

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C113 (14 cavities)

Engine to the automatic transaxle harness, on the left side of the engine compartment, on the top of the transmission

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C125 (1 cavity)

Engine wiring harness to the knock sensor jumper harness, on the lower right side of the engine

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C126 (3 cavities)

Engine wiring harness to the ECT sensor jumper harness, on the top center of the engine, on the intake manifold

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C181 (10 cavities)

IP wiring harness to the engine wiring harness, left side of the engine compartment on the front of the strut tower

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C200 (56 cavities)

IP wiring harness to the body wiring harness, behind the right side of the IP, near the shroud

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C240 (10 cavities)

IP wiring harness to the front floor console wiring harness, behind the front end of the console

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

C405 (8 cavities)

Body wiring harness to the fuel tank wiring harness, in the rear compartment floor forward of the spare tire well

Refer to Harness Routing Views in Wiring Systems

Refer to Inline Harness Connector End Views in Wiring Systems

G111 (VIN K & VIN 1)

Right side of the engine on the ignition control module bracket

Refer to Harness Routing Views in Wiring Systems

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G113

Lower left front of the engine on the transaxle stud, near the starter

Refer to Harness Routing Views in Wiring Systems

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G117 (VIN K & VIN 1)

Lower left front of the engine on transaxle stud, near the starter

Refer to Harness Routing Views in Wiring Systems

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G200

Right side of the IP cross beam, behind the fuse block

Refer to Harness Routing Views in Wiring Systems

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G302

Right door sill, forward of the right front seat

Refer to Harness Routing Views in Wiring Systems

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P100

Lower right side of the dash panel

Refer to Harness Routing Views in Wiring Systems

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P101

Upper left side of the dash panel

Refer to Harness Routing Views in Wiring Systems

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P425

Left rear of the rear cxompartment

Refer to Harness Routing Views in Wiring Systems

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S105

Engine wiring harness, in the front of the engine compartment, approximately 4 cm (2 in) from the C105 (engine coolant fan jumper connector) breakout

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S106

Engine wiring harness, on the left side of the engine compartment, approximately 44 cm (17 in) from the PCM

Refer to Harness Routing Views in Wiring Systems

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S115 (VIN M & VIN K)

Automatic transaxle wiring harness, inside the transaxle housing, approximately 19 cm (7 in) from inline connector C111

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S115 (VIN 1)

Automatic transaxle wiring harness, inside the transaxle housing, approximately 19 cm (7 in) from C113

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S131

Engine wiring harness, on the left side of the engine compartment, approximately 4 cm (2 in) from the EBTCM breakout

Refer to Harness Routing Views in Wiring Systems

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S144

Ignition control module wiring harness, on the top of the engine near the ignition control module, approximately 12 cm (5 in) from the inline connector C110 breakout

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S145

Ignition control module wiring harness, on the top of the engine near the ignition control module, approximately 12 cm (5 in) from the inline connector C110 breakout

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S167

Engine wiring harness, inboard of the coolant bottle on the driver side on the engine compartment, appoximately 4 cm (2 in) from the PCM breakout

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S206

IP wiring harness, right side of the steering column, approximately 4 cm (2 in) from the data link connector breakout

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S209

IP wiring harness, behind the right side of the instrument cluster, approximately 20 cm (8 in) from the driver information display/trip calculator breakout

Harness Routing Views in Wiring Systems Harness Routing Views

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S211

IP wiring harness, behind the center of the IP, approximately 11 cm (4 in) from the data link connector

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S218

IP wiring harness, near the blower motor, appoximately 4 cm (2 in) from the blower motor resistor control module breakout

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S236

IP wiring harness, on the right side of the steering column, approximately 30 cm (12 in) from the data link connector breakout

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S237

IP wiring harness, behind the center of IP, approximately 30 cm (12 in) from the data link connector breakout

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S238

IP wiring harness, below the center of the IP, approximately 27 cm (11 in) from inline connector C240

Harness Routing Views in Wiring Systems Harness Routing Views

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S285

IP wiring harness, on the right side of the steering column, approximately 14 cm (5 in) from the data link connector breakout

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S406

Body wiring harness, below the rear window panel, approximately 10 cm (4 in) from the inline connector C405 (inline connector to fuel tank harness) breakout

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S409

Body wiring harness, below the rear window panel between C405 (inline connector to the fuel tank harness) and the inline connector C405 breakout, approximately 10 cm (4 in) from the inline connector C405 breakout

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