GM Service Manual Online
For 1990-2009 cars only

Name

Location

Locator View

Connector End View

Cruise Control Module (CCM)

RR of the engine compartment, on the wheelhousing

Harness Routing Views in Wiring Systems

Cruise Control Connector End Views in Cruise Control Systems, 1999 C/K Service Manual

Data Link Connector (DLC)

Under RH of IP, to the right of the steering column, mounted to bottom of knee bolster

Data Link Communications Component Views in Data Link Communications

Data Link Communications Connector End Views in Data Link Communications

Front Axle Actuator

RF of the front drive axle

Transfer Case Component Views in Transfer Case, 1999 C/K Service Manual

Transfer Case Connector End Views in Transfer Case, 1999 C/K Service Manual

IP Fuse Block

To the right of the IP, near the right front door jamb switch

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Park/Neutral Position (PNP) Switch

At LH center of the transmission

Automatic Transmission Electronic Component Views in Automatic Transmission, 1999 C/K Service Manual

Automatic Transmission Electronic Connector End Views in Automatic Transmission, 1999 C/K Service Manual

Powertrain Control Module (PCM) (Diesel)

Under LH end of IP, above the blower motor, behind the IP compartment box

Engine Controls Component Views in Engine Controls - 6.5L, 1999 C/K Service Manual

Engine Controls Connector End Views in Engine Controls - 6.5L, 1999 C/K Service Manual

Stoplamp Switch

On the top of the brake pedal

Lighting Systems Component Views in Lighting Systems

Lighting Connector End Views in Lighting Systems, 1999 C/K Service Manual

Tranfer Case Encoder

LH center of transfer case

Transfer Case Component Views in Transfer Case, 1999 C/K Service Manual

Transfer Case Connector End Views in Transfer Case, 1999 C/K Service Manual

Tranfer Case Encoder Motor

LH center of transfer case

Transfer Case Component Views in Transfer Case, 1999 C/K Service Manual

Transfer Case Connector End Views in Transfer Case, 1999 C/K Service Manual

Transfer Case Control Module (TCCM)

Mounted to the right side of the steering wheel supprot bracket, under the IP

Transfer Case Control Component Views in Transfer Case

Transfer Case Connector End Views in Transfer Case, 1999 C/K Service Manual

Transfer Case Select Switch

Center of the IP, LH of the steering column shift lever

Transfer Case Control Component Views in Transfer Case

Transfer Case Connector End Views in Transfer Case, 1999 C/K Service Manual

Underhood Fuse Block

In the right rear side of the engine compartment, on the fender

Power and Grounding Component Views in Wiring Systems

Electrical Center Identification Views in Wiring Systems

Vehicle Control Module (VCM) (Gas)

Engine compartment, near the EBCM

Engine Controls Component Views in Engine Controls - 5.7L

VCM Connector End Views in Engine Controls - 5.7L

Vehicle Speed Sensor (w/Selectable 4WD)

LR of the transfer case

Component Views in Engine Controls - 5.7L and 6.5L, 1999 C/K Service Manual

Engine Controls Connector End Views in Engine Controls - 5.7L and 6.5L, 1999 C/K Service Manual

C100

Part of the engine harness to IP harness, in the left rear side of the engine compartment, at the bulkhead

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C120

Part of the engine harness to front axle actuator, in the rear of the engine, near the transmission

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C200

Behind the right side of the IP, near the heater motor, in foam wrap

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C224

In the left rear side of the engine compartment, under the EBCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C225

In the left rear side of the engine compartment, under the EBCM

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

C227 (Stoplamp Switch)

IP harness, Inline to the stoplamp switch

Harness Routing Views in Wiring Systems

Inline Harness Connector End Views in Wiring Systems

G105 (Gas)

On the right front side of the engine block

Power and Grounding Component Views in Wiring Systems

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G105 (Diesel)

Left rear of the intake manifold

Power and Grounding Component Views in Wiring Systems

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G200

Behind the right side of the IP, on the right side of the knee bolster

Power and Grounding Component Views in Wiring Systems

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P100

In the right rear side of the engine compartment, at the bulkhead, to the left of C100

Harness Routing Views in Wiring Systems

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P101

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

Harness Routing Views in Wiring Systems

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S111 (Gas)

Engine harness, approximately 30 cm (12 in) from EBCM breakout, toward the EGR valve breakout

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S111 (Diesel)

Engine harness approximately 11 cm (4 in) from EBCM breakout, toward glow plugs

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S147 (Gas)

engine harness, approximately 5 cm (2 in) from EGR valve breakout, toward taillamp harness breakout

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S147 (Diesel)

Engine harness, approximately 3 cm (1 in) from the A/C compressor cycling 5W breakout, toward the transmission breakout

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S162 (Gas)

Engine harness, approximately 17 cm (6.5 in) from starter solenoid breakout, toward LH oxygen sensor breakout

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S204

IP harness, approximately 9 cm (3.5 in) from the steering column harness breakout, toward the convenience center

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S213

IP harness, approximately 4 cm (1.5 in) from steering column harness breakout, towards the DLC

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S221

IP harness, approximately 8 cm (3 in) fbefore the transfer case control module

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S235

IP harness, approximately 4 cm (1.5 in) from steering column harness breakout, C100, toward the convenience center

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S236

IP harness, approximately 6 cm (2 in) before the transfer case control module

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S298

IP harness, approximately 10 cm (4 in) from instrument cluster breakout, toward radio harness breakout

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S302

Selectable 4WD harness, approximately 10 cm (4 in) from the transfer shift control harness brekaout, toward the VSS switch breakout

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