Did you perform the Cruise Control System Check?

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Go to Step 2

Go to Cruise Control System Check

1. Disconnect the connector C2 at the powertrain control module (PCM).
2. Place the ignition switch in the RUN position.
3. Connect a J 39200 DMM, set on volts, between the PCM connector C2 pin B9 for the CKT 420 (PPL) wire and ground.
4. Observe the DMM.
5. Depress the brake pedal.
6. Observe the DMM.

Is battery voltage present with the brake pedal released and no battery voltage present with the brake pedal depressed?

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Go to Step 4

Go to Step 3

1. Disconnect the connector at the stoplamp switch.
2. Connect a J 39200 DMM, set on volts, between the stoplamp switch connector cavity E for the CKT 420 (PPL) wire and ground.

Is there battery voltage?

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Go to Step 5

Go to Step 6

Replace the PCM. Refer to PCM Replacement/Programming.

is the repair complete?

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Go to Cruise Control System Check

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Repair the short to voltage on the CKT 420 (PPL) or CKT 379 (BRN/WHT) wire between the stoplamp switch and the PCM. Refer to Wiring Repairs .

Is the repair complete?

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Go to Cruise Control System Check

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Adjust or replace the stoplamp switch. Refer to Stop Lamp Switch Replacement .

Is the repair complete?

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Go to Cruise Control System Check

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