Schematic Reference: Cruise Control Schematics Connector End View Reference: Powertrain Control Module Connector End Views in Engine Controls - 4.2L

Did you perform the Cruise Control Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Cruise Control

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With the scan tool, perform the Lamp Test in the Instrument Panel Cluster Special Functions.

Does the Cruise indicator illuminate during the lamp test?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 5

Go to Step 4

Important: Program the replacement IPC.

Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.

Did you complete the replacement?

Go to Step 5

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2