GM Service Manual Online
For 1990-2009 cars only

ABS Components Domestic

Name

Location

Locator View

Connector End View

Brake Pressure Differential Switch

Part of electronic brake control module, LH frame rail near center of vehicle

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Cruise Control Module

Front of engine compartment, near LH fender

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

Under LH side of IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Daytime Running Lamps Control Module

Under LH side of IP, taped on IP harness

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Electronic Brake Control Module (EBCM)

LH frame rail, near center of vehicle

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Instrument Cluster

Top LH side of IP

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

IP Fuse Block

LH lower kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Passlockā„¢ Module (Domestic)

Below the center of the IP

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

Powertrain Control Module (PCM)

Behind center of IP

Engine Controls Component Views in Engine Controls 6.5L

Powertrain Control Module Connector End Views in Engine Controls 6.5L

TCC/Stoplamp Switch

Under brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Underhood Fuse-Relay Center

Engine compartment, LH fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM)

Engine compartment, LH fender

    •  Engine Controls Component Views in Engine Controls (4.3L)
    •  Engine Controls Component Views in Engine Controls (5.0, 5.7L)
    •  Engine Controls Component Views in Engine Controls (7.4L)
    •  VCM Connector End Views in Engine Controls (4.3L)
    •  VCM Connector End Views in Engine Controls (5.0, 5.7L)
    •  VCM Connector End Views in Engine Controls (7.4L)

Vehicle Speed Sensor

LH side of transmission

    •  Engine Controls Component Views in Engine Controls (4.3L)
    •  Engine Controls Component Views in Engine Controls (5.0, 5.7L)
    •  Engine Controls Component Views in Engine Controls (6.5L)
    •  Engine Controls Component Views in Engine Controls (7.4L)
    •  Engine Controls Connector End Views in Engine Controls (4.3L)
    •  Engine Controls Connector End Views in Engine Controls (5.0, 5.7L)
    •  Engine Controls Connector End Views in Engine Controls (6.5L)
    •  Engine Controls Connector End Views in Engine Controls (7.4L)

Vehicle Speed Sensor Buffer

Below LH side of IP, near 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

Wheel Speed Sensor, LF

At LF wheel

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor, RF

At RF wheel

Antilock Brake System Component Views

Antilock Brake System Connector End Views

C100

LH rear of engine compartment at bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213

I/P harness behind RH side of the I/P near the center of the vehicle

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

D101

Underhood fuse-relay center, LH front of engine compartment

Power and Grounding Component Views in Wiring Systems

--

G101

Engine harness, near thermostat housing

Power and Grounding Component Views in Wiring Systems

--

G102

Engine harness, near generator bracket

Power and Grounding Component Views in Wiring Systems

--

G102 (6.5L)

LH front of engine harness, at generator bracket, near A/C compressor

Power and Grounding Component Views in Wiring Systems

--

G103 (4.3L)

Engine harness, at generator bracket

Power and Grounding Component Views in Wiring Systems

--

G103 (5.0L, 5.7L, 7.4L)

LH front of engine harness, at generator bracket, near A/C compressor

Power and Grounding Component Views in Wiring Systems

--

G103 (6.5L)

Engine harness, at generator bracket

Power and Grounding Component Views in Wiring Systems

--

P100

In the left rear of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

--

P101

Under the right side of the IP

Harness Routing Views in Wiring Systems

--

S101 (4.3L)

In the engine harness, approximately 20 cm (8 in) from the knock sensor breakout, toward the EBCM

--

--

S101 (5.0L, 5.7L)

In the engine harness, approximately 10 cm (4 in) from the ignition coil breakout, toward the fuel injector breakout

--

--

S101 (7.4L)

In the engine harness, approximately 5 cm (2 in) from the generator breakout, toward the C107 breakout

--

--

S101 (6.5L)

In the engine harness, approximately 22 cm (8.5 in) from the optical fuel temperature sensor breakout, toward the C100 breakout

--

--

S102 (4.3L)

in the engine harness, approximately 104 cm (41 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S102 (5.0L, 5.7L)

In the engine harness, approximately 4 cm (1.6 in) from the A/C compressor breakout, toward the MAF sensor breakout

--

--

S102 (7.4L)

In the engine harness, approximately 4 cm (1.6 in) from the main harness that leads to the A/C compressor breakout, toward the generator breakout

--

--

S102 (6.5L)

In the engine harness, approximately 4 cm (1.6 in) from main harness that leads to the blower motor breakout toward C100 breakout

--

--

S103 (7.4L)

in the engine harness, approximately 4 cm (1.6 in) from the ECT sensor breakout, toward C100

--

--

S111

In the engine harness, approximately 4 cm (1.6 in) from the main harness breakout leading to the underhood fuse-relay center and C100 breakouts

--

--

S122 (4.3L)

In the engine harness, approximately 7 cm (2.8 in) from the G103 breakout, toward the transmission

--

--

S122 (5.0L, 5.7L)

In the engine harness, approximately 24 cm (9.4 in) from the A/C compressor breakout, toward C100

--

--

S122 (7.4L)

In the engine harness, approximately 8 cm (3.1 in) from the C100 breakout, toward the VCM breakout

--

--

S153 (4.3L)

In the engine harness, approximately 8 cm (3 in) from the A/C compressor breakout, in the VCM harness

--

--

S153 (5.0L, 5.7L)

In the engine harness, approximately 8 cm (3 in) from the C100 breakout, in the VCM harness

--

--

S153 (6.5L)

In the engine harness, approximately 27 cm (11 in) from the A/C compressor breakout, toward the underhood fuse-relay center

--

--

S153 (7.4L)

In the engine harness, approximately 8 cm (3 in) from the C100 breakout, in the VCM harness

--

--

S154 (4.3L)

In the engine harness, approximately 98 cm (38 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S154 (5.0L, 5.7L)

In the engine harness, approximately 98 cm (38 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S154 (7.4L)

In the engine harness, approximately 98 cm (38 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S156 (4.3L)

In the engine harness, approximately 11 cm (4 in) from the fuel injector harness breakout, toward the knock sensor breakout

--

--

S156 (5.0L, 5.7L)

In the engine harness, approximately 8 cm (3 in) from the fuel injector harness breakout, toward the ignition coil breakout

--

--

S156 (7.4L)

In the engine harness, approximately 10 cm (4 in) from the A/T input shaft speed sensor breakout, toward the fuel injector harness breakout

--

--

S156 (6.5L)

In the engine harness, approximately 4 cm (1.6 in) from the brake pressure differential switch breakout, toward the transmission

--

--

S207

In the IP harness, approximately 6 cm (2 in) from the park brake warning switch breakout, toward the datalink connector (DLC) breakout

--

--

S210

In the IP harness, approximately 4 cm (2 in) into the TCC/Stoplamp switch breakout

--

--

S216

in the IP harness, approximately 8 cm (3 in) from the C200 breakout, toward the instrument cluster breakout

--

--

S231

In the IP harness, approximately 18 cm (7 in) from C100, toward the park brake warning switch breakout

--

--

ABS Components Export

Name

Location

Locator View

Connector End View

Brake Pressure Differential Switch

Part of electronic brake control module, LH frame rail near center of vehicle

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Cruise Control Module

Front of engine compartment, near LH fender

Cruise Control Component Views in Cruise Control

Cruise Control Connector End Views in Cruise Control

Data Link Connector (DLC)

Under LH side of IP

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Daytime Running Lamps Control Module

Under LH side of IP, taped on IP harness

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Electronic Brake Control Module (EBCM)

LH frame rail, near center of vehicle

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Electronic Brake Control Relay

Underhood fuse-relay center, LH front of engine compartment

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Instrument Cluster

Top LH side of IP

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

IP Fuse Block

LH lower kick panel

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Powertrain Control Module (PCM)

Behind center of IP

Engine Controls Component Views in Engine Controls 6.5L

Powertrain Control Module Connector End Views in Engine Controls 6.5L

TCC/Stoplamp Switch

Under brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Systems Connector End Views in Lighting Systems

Underhood Fuse-Relay Center

Engine compartment, LH fender

Power and Grounding Component Views in Wiring Systems

Power and Grounding Connector End Views in Wiring Systems

Vehicle Control Module (VCM)

Engine compartment, LH fender

Engine Controls Component Views in Engine Controls

VCM Connector End Views in Engine Controls

Vehicle Immobilizer Module (VIM)

In the crossbody harness, behind the IP, in the right-center of the bulkhead

Theft Deterrent System Component Views in Theft Deterrent

Theft Deterrent System Connector End Views in Theft Deterrent

Vehicle Speed Sensor

LH side of transmission

    •  Engine Controls Component Views in Engine Controls (5.0,5.7L)
    •  Engine Controls Component Views in Engine Controls (6.5L)
    •  Engine Controls Connector End Views in Engine Controls (5.0,5.7L)
    •  Engine Controls Connector End Views in Engine Controls (6.5L)

Vehicle Speed Sensor Buffer

Below LH side of IP, near 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

Wheel Speed Sensor, LF

At LF wheel

Antilock Brake System Component Views

Antilock Brake System Connector End Views

Wheel Speed Sensor, RF

At RF wheel

Antilock Brake System Component Views

Antilock Brake System Connector End Views

C100

LH rear of engine compartment at bulk

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C213

I/P harness behind the RH side of the I/P near the center of the vehicle

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

D101

Underhood fuse-relay center, LH front of engine compartment

Power and Grounding Component Views in Wiring Systems

--

D103

Engine harness, between splices S109 and S113

Harness Routing Views in Wiring Systems

--

G101

Engine harness, near thermostat housing

Power and Grounding Component Views in Wiring Systems

--

G102 (5.0L/5.7L)

Engine harness, near generator bracket

Power and Grounding Component Views in Wiring Systems

--

G102 (6.5L)

LH front of engine harness, at generator bracket, near A/C compressor

Power and Grounding Component Views in Wiring Systems

--

G103 (5.0L, 5.7L)

LH front of engine harness, at generator bracket, near A/C compressor

Power and Grounding Component Views in Wiring Systems

--

G103 (6.5L)

Engine harness, at generator bracket

Power and Grounding Component Views in Wiring Systems

--

S101 (4.3L)

In the engine harness, approximately 20 cm (8 in) from the knock sensor breakout, toward the EBCM

--

--

S101 (5.0L, 5.7L)

In the engine harness, approximately 22 cm (9 in) from the ignition coil breakout, toward the transmission breakout

--

--

S101(6.5L)

In the engine harness, approximately 11 cm (4 in) from the A/C compressor breakout, toward C101

--

--

S101 (7.4L)

In the engine harness, approximately 14 cm (2 in) from the ignition coil breakout, toward the A/T input shaft speed sensor breakout

--

--

S102 (4.3L)

In the engine harness, approximately 104 cm (41 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S102 (5.0L, 5.7L)

In the engine harness, approximately 104 cm (41 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S102 (6.5L)

In the engine harness, approximately 4 cm (1.6 in) from the A/C compressor breakout, toward C101

--

--

S102 (7.4L)

In the engine harness, approximately 104 cm (41 in) from the underhood fuse-relay center, toward the A/C compressor breakout

--

--

S109 (5.0L, 5.7L)

In the engine harness, approximately 7 cm (3 in) from the ignition coil breakout, toward the fuel injector harness breakout

--

--

S109 (6.5L-Export Only)

In the engine harness, approximately 37 cm (14.6 in) from the A/C compressor breakout, toward the underhood fuse-relay center

--

--

S111 (6.5L)

In the engine harness, approximately 4 cm (1.6 in) into the main harness breakout that leads to the underhood fse-relay center and the C100 breakout

--

--

S113 (6.5L - Export only)

In the engine harness, approximately 37 cm (14.6 in) into the main harness breakout that leads to the underhood fuse-relay center, from the A/C compressor breakout

--

--

S122 (4.3L)

In the engine harness, approximately 7 cm (3 in) from the knock sensor breakout, toward the transmission

--

--

S122 (5.0L, 5.7L)

In the engine harness, approximately 111 cm (44 in) from the underhood fuse-relay center, toward the ECT sensor breakout

--

--

S122 (7.4L)

In the engine harness, approximately 111 cm (44 in) from the underhood fuse-relay center, toward the ECT sensor breakout

--

--

S146 (6.5L)

In the engine harness, approximately 10 cm (4 in) from the A/C compressor breakout, toward the underhood fuse-relay center

--

--

S152 (4.3L)

In the engine harness, approximately 26 cm (10 in) from the heated oxygen sensor breakout, in the blower motor resistor breakout

--

--

S152 (5.0L, 5.7L)

In the engine harness, approximately 26 cm (10 in) from the heated oxygen sensor breakout, in the blower motor resistor breakout

--

--

S152 (7.4L)

In the engine harness, approximately 15 cm (6 in) from the oxygen sensor breakout, into the blower motor resistor breakout

--

--

S153 (5.0L, 5.7L)

In the engine harness, approximately 8 cm (3.1 in) from the ignition coil breakout, toward the transmission

--

--

S153 (6.5L)

In the engine harness, approximately 27 cm (10.6 in) from the main harness breakout leading to the underhood fuse-relay center

--

--

S154 (5.0L, 5.7L)

In the engine harness, approximately 4 cm (1.6 in) from the ignition coil breakout, toward the transmission

--

--

S156 (5.0L, 5.7L)

In the engine harness, approximately 8 cm (3.1 in) from the fuel injector harness breakout, toward the ignition coil breakout

--

--

S156 (6.5L)

In the engine harness, approximately 4 cm (1.6 in) from the brake pressure differential switch breakout, toward the transmission

--

--

S207

In the IP harness, approximately 4 cm (1.6 in) into the VSSB breakout

--

--

S210

In the IP harness, approximately 4 cm (1.6 in) into the TCC/Stoplamp switch breakout

--

--

S216

In the IP harness, approximately 8 cm (3.1 in) from the C200 breakout, toward the instrument cluster breakout

--

--

S231

In the IP harness, approximately 18 cm (7 in) from the C100 breakout, toward the park brake warning switch breakout

--

--

S235 (Non-DRL Only)

In the IP harness, approximately 9 cm (4 in) from the park brake warning switch breakout, toward connector C100

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