GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Chassis Harness Routing (Passenger/Cargo)


Object Number: 1371219  Size: LF
(1)Fuse Block Underhood - C3
(2)Fuse Block Underhood - C7
(3)Fuse Block Underhood - C8 (UY7)
(4)Wheel Speed Sensor (WSS) Connector - RF
(5)Brake Pressure Differential Switch Connector (Light Duty)
(6)Evaporative Emission (EVAP) Canister Vent Solenoid Connector (Gas)
(7)S301
(8)Electronic Brake Control Module (EBCM) Connector (JL4)/Electronic Brake Control Module (EBCM) - C2 (w/o JL4)
(9)Electronic Brake Control Module (EBCM) - C1 (w/o JL4)
(10)Trailer Right Stop/Turn Relay (UY7)
(11)Trailer Left Stop/Turn Relay (UY7)
(12)S315 (JL4)
(13)G300
(14)Wheel Speed Sensor (WSS) Connector - LF
(15)C101
Figure 2:

LF Frame (JL4)


Object Number: 1357599  Size: MF
(1)Master Cylinder Reservoir
(2)Precharge Pump
(3)Frame
Figure 3:

Lower Left of the I/P (JL4)


Object Number: 1359051  Size: MF
(1)Steering Wheel Speed/Position Sensor
(2)Steering Column Jacket Assembly
Figure 4:

Center of the I/P


Object Number: 1357403  Size: MF
(1)Tow/Haul Switch
(2)Traction Control Switch (JL4)
(3)Inflatable Restraint I/P Module Disable Switch (Heavy Duty)
(4)Blower Motor Switch - Auxiliary (C36)
Figure 5:

Body Harness Routing - Right B-Pillar


Object Number: 1357140  Size: MF
(1)C312
(2)Seat Belt Pretensioner Connector - RF (Light Duty)
(3)C306
(4)Yaw and Lateral Acceleration Sensor Connector (JL4)
(5)Door Contact Plate Connector - Right Side (Passenger/Cargo w/AU3)
(6)Door Jamb Switch Connector - RR Side (Passenger/Cargo)
Figure 6:

Left Side Frame


Object Number: 886085  Size: MF
(1)Evaporative Emission (EVAP) Canister Vent Solenoid
(2)Electronic Brake Control Module (EBCM)
Figure 7:

LR Frame (JL4)


Object Number: 1357843  Size: MF
(1)Rotor
(2)Frame
(3)Wheel Speed Sensor (WSS) - LR
Figure 8:

RR Frame (JL4)


Object Number: 1357851  Size: MF
(1)Frame
(2)Rotor
(3)Wheel Speed Sensor (WSS) - RR