GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC P42 Commercial Chassis 🢒 Body and Accessories 🢒 Cruise Control 🢒 Cruise Control Component Views
Figure 1:

Radiator Support Wiring (L29)
Object Number: 179906 Size: MF
(1)Cruise Control Module
(2)Auxiliary Engine Coolant Fan Connector
(3)Vehicle Control Module (VCM)
(4)EVAP Low Pressure Control Switch Connector (Body Builder)
(5)Thermal A/C Control (Body Builder)
(6)Intake Air Temperature (IAT) Sensor
(7)Mass Air Flow (MAF) Sensor
(8)Starter Relay
(9)A/C Compressor Relay
(10)Fuel Pump Relay
(11)Park/Neutral Position (PNP) Switch Relay
Figure 2:

Radiator Support Wiring (L65)
Object Number: 186179 Size: MF
(1)C203
(2)Torque Converter Clutch (TCC) and Stoplamps Switch
(3)Vehicle Speed Sensor (VSS) Calibrator
(4)Accelerator Pedal Position Module (APP) (Part of Accelerator Pedal Assembly)
(5)Engine Coolant Level Switch
(6)Auxiliary Engine Coolant Fan A/C Pressure Switch
(7)Starter Relay
(8)Brake Pressure Differential Switch
(9)A/C Compressor Relay
(10)Fuel Pump Relay
(11)Park/Neutral Position (PNP) Switch Relay
(12)Stoplamps Switch
Figure 3:

Dash and Steering Column
Object Number: 364655 Size: MF
(1)C203
(2)Brake Pedal Bracket
(3)Stoplamps Switch
(4)Torque Converter Clutch (TCC) and Stoplamps Switch
(5)Turn Signal Switch Connector
Figure 4:

Steering Column
Object Number: 329566 Size: SF
(1)Hazard Lamps Flasher Switch
(2)Transmission Range (TR) Lamp
(3)Multifunction Lever
(4)Turn Signal Switch Connector
(5)Cruise Control Switch Connector (P32)
(6)Wiper Switch Connector