GM Service Manual Online
For 1990-2009 cars only
Table 1: Antilock Brakes System Components (P42)
Table 2: Antilock Brakes System Components (P32)

Antilock Brakes System Components (P42)

Name

Location

Locator View

Connector End View

Battery Junction Block

On the forward LH side of the bulkhead above P100

Power and Grounding Component Views

--

Brake Pressure Differential Switch

Bolted to the brake pressure modulator valve below the radiator on the lower crossmember

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Data Link Connector (DLC)

LH side of the passenger compartment lower bulkhead on the side of the relay bracket

Data Link Communications Component Views

Data Link Communications Connector End Views

Diode Network

On the IP harness located by the body builder

--

Hydraulic Brake Connector End Views

Electronic Brake Control Module (EBCM)

Below the radiator on the lower crossmember

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Instrument Cluster

Body builder installed

--

Instrument Panel, Gages, and Console Connector End Views

IP Fuse Block

Located by the body builder

Electrical Center Identification Views

Power and Grounding Connector End Views

Powertrain Control Module (EFI Diesel)

At the LH side of the drivers island on the relay bracket

Engine Controls Component Views

Powertrain Control Module Connector End Views

Torque Converter Clutch (TCC) and Stoplamps Switch

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Vehicle Control Module (Gasoline)

At the LH side of the radiator support

Engine Controls Component Views

VCM Connector End Views

Vehicle Speed Sensor Calibrator (Diesel)

At the LH side of the drivers island under the relay bracket

Engine Controls Component Views

Engine Controls Connector End Views

Wheel Speed Sensor, LH Front

Mounted in the LH front wheel hub, connected at the front LH frame rail near the radiator

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor, RH Front

Mounted in the RH front wheel hub, connected at the front RH frame rail near the radiator

Antilock Brake System Component Views

Antilock Brake System Connector End Views

C110

Engine harness to the ABS harness, at the front of the LH frame rail near the steering gearbox

Harness Routing Views

Inline Harness Connector End Views

C111

Engine harness to the ABS harness, at the front of the LH frame rail above the steering gearbox

Harness Routing Views

Inline Harness Connector End Views

C200

Engine harness to the IP harness, in the bulkhead near P100

Harness Routing Views

Inline Harness Connector End Views

C211

IP harness to the engine harness, on top of the steering column support

Harness Routing Views

Inline Harness Connector End Views

G108

On top of the thermostat housing

Power and Grounding Component Views

--

G110

At the front, on the LH frame rail above the steering gearbox

Power and Grounding Component Views

--

P100

LH bulkhead left of the steering column

Harness Routing Views

--

S102 (EFI Diesel)

In the engine harness, approximately 32 cm (13 in) from the breakout for the battery junction block

--

--

S104 (EFI Diesel)

In the engine harness, approximately 25 cm (10 in) from the breakout for the battery junction block

--

--

S133 (MFI Diesel)

In the engine harness, approximately 17 cm (7 in) from breakout for C200

--

--

S133 (Gasoline)

In the engine harness breakout for the VCM, approximately 8 cm (3 in) from the main harness

--

--

S143 (MFI Diesel)

In the engine harness, approximately 17 cm (7 in) from P100

--

--

S143 (EFI Diesel)

In the engine harness, approximately 16 cm (6 in) from the A/C compressor clutch breakout towards C200

--

--

S143 (Gasoline)

In the engine harness, approximately 6 cm (2 in) from the C200 breakout towards the MAF sensor

--

--

S150 (Gas)

In the engine harness, approximately 18 cm (7 in) from the C200 breakout towards P100

--

--

S160

Fusible link splice in the engine harness, approximately 16 cm (6 in) from the battery junction block

--

--

S165

In the ABS harness, approximately 10 cm (4 in) from the breakout for C110

--

--

S167

In the ABS harness, approximately 15 cm (6 in) from the RH wheel speed sensor breakout toward C110

--

--

S200 (Gasoline)

In the IP side of engine harness, approximately 19 cm (8 in) from P100 toward the ignition switch

--

--

S205

In the IP harness, approximately 4 cm (2 in) from the fuse block breakout toward C200

--

--

S207

In the IP harness, approximately 40 cm (16 in) before the fuse block breakout toward the instrument cluster connector

--

--

S233 (EFI Diesel)

In the IP side of the engine harness, approximately 31 cm (13 in) from P100 toward the ignition switch

--

--

Antilock Brakes System Components (P32)

Name

Location

Locator View

Connector End View

Antilock Brake Indicator Relay (Export)

On the IP harness located by the body builder

--

Antilock Brake System Connector End Views

Battery Junction Block

On the forward LH side of the bulkhead above P100

Power and Grounding Component Views

--

Brake Pressure Differential Switch

Bolted to the brake pressure modulator valve below the radiator on the lower crossmember

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Data Link Connector (DLC)

At the lower LH side of the steering column on the support bracket

Data Link Communications Component Views

Data Link Communications Connector End Views

Diode Network

On the IP harness located by the body builder

--

Hydraulic Brake Connector End Views

Electronic Brake Control Module (EBCM)

Below the radiator on the lower crossmember

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Instrument Cluster

Body builder installed

--

Instrument Panel, Gages, and Console Connector End Views

IP Fuse Block

Located by the body builder

Electrical Center Identification Views

Power and Grounding Connector End Views

Powertrain Control Module (Diesel)

On the LH side of the driver's island

Engine Controls Component Views

Powertrain Control Module Connector End Views

Torque Converter Clutch (TCC) and Stoplamps Switch

Above the brake pedal at the RH side of the steering column

Lighting Systems Component Views

Lighting Systems Connector End Views

Vehicle Control Module (Gas)

Mounted on top of the radiator support

Engine Controls Component Views

VCM Connector End Views

Vehicle Speed Sensor Calibrator (Diesel)

Above the accelerator pedal at the RH side of the brake pedal support

Engine Controls Component Views

Engine Controls Connector End Views

Wheel Speed Sensor, LH Front

Mounted in the LH front wheel hub, connected at the front LH frame rail near the radiator

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor, RH Front

Mounted in the RH front wheel hub, connected at the front RH frame rail near the radiator

--

Antilock Brake System Connector End Views

C110

Engine harness to the ABS harness, at the front of the LH frame rail near the steering gearbox

Harness Routing Views

Inline Harness Connector End Views

C111

Engine harness to the ABS harness, at the front of the LH frame rail near the brake master cylinder

Harness Routing Views

Inline Harness Connector End Views

C200

At the top front of the steering column support near the park brake pull button switch

Harness Routing Views

Inline Harness Connector End Views

G108

On top of the thermostat housing

Power and Grounding Component Views

--

G110

At the front, on the LH frame rail above the steering gearbox

Power and Grounding Component Views

--

G200

Mounted to the top front of the steering column support plate

--

--

P100

Main wiring pass through at the bulkhead

Harness Routing Views

--

S102 (Gas)

In the engine harness, 25 cm (10 in) from the breakout for the windshield wiper and the forward lamp harness connectors, going away from passthrough P100

--

--

S116 (Gas)

In the engine harness, 31 cm (12 in) from the breakout for the MAF sensor toward P100

--

--

S143 (Gas)

In the engine harness, 5 cm (2 in) from the breakout for the ABS connectors C110 and C111, toward P100

--

--

S143 (Diesel)

In the engine harness, 2 cm (1 in) from the breakout for C100 and C207, toward the cooling fan connector

--

--

S160

Fusible link splice in the engine harness, 16 cm (6 in) from the battery junction block

--

--

S165

In the ABS harness, 10 cm (4 in) from the breakout for C110

--

--

S167

In the ABS harness, 19 cm (7 in) from the breakout for the brake pressure differential switch

--

--

S170 (Gas)

In the engine harness, 15 cm (6 in) from the breakout for the ABS connectors C110 and C111, toward passthrough P100

--

--

S200 (Diesel)

In the IP side of the engine harness, 8 cm (3 in) from the breakout for the turn signal switch connector, toward P100

--

--

S202 (Diesel)

In the IP side of the engine harness, 7 cm (3 in) from the breakout for the wiper switch and the hazard lamp flasher, toward P100

--

--

S204 (Export)

In the IP side of the engine harness, 22 cm (9 in) from P100

--

--

S205

In the IP harness breakout for the instrument cluster connector, 10 cm (4 in) from the main harness

--

--

S211

In the IP harness, 6 cm (2 in) from the dimmer switch and the IP cluster breakout, toward the IP fuse block

--

--

S229 (Diesel)

In the IP side of the engine harness, 3 cm (1 in) from the breakout for the hazard flasher and the wiper switch connector, toward the breakout for the data link connector

--

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