Diagnostic Test

1) MEASURE THE RESISTANCE OF THE HAZARD SWITCH CIRCUIT

Fig 1: Checking Hazard Switch Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the BCM harness connector.

Disconnect the Console Switch Group harness connector.

NOTE: Check connector - Clean/repair as necessary.

Measure the resistance of the Hazard Switch circuit between the BCM harness connector and the Console Switch Group harness connector.

Is the resistance below 5.0 ohms?

Yes
1. Go to step 2).
No
1. Repair the Hazard Switch circuit for an open.
2. Perform BODY VERIFICATION TEST .
2) MEASURE THE VOLTAGE OF THE HAZARD SWITCH CIRCUIT

Fig 2: Checking Hazard Switch Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition on.

Measure the voltage of the Hazard Switch circuit between the Console Switch Group harness connector and Ground.

Is voltage present?

Yes
1. Repair the Hazard Switch circuit for a short to battery.
2. Perform BODY VERIFICATION TEST .
No
1. Go to step 3).
3) MEASURE THE RESISTANCE OF THE HAZARD SWITCH CIRCUIT

Fig 3: Checking Hazard Switch Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Measure the resistance of the Hazard Switch circuit between the Console Switch Group harness connector and ground.

Is the resistance below 10K ohms?

Yes
1. Repair the Hazard Switch circuit for a short to ground.
2. Perform BODY VERIFICATION TEST .
No
1. Replace the Body Control Module. (Refer to ELECTRICAL/ELECTRONIC CONTROL MODULES/BODY CONTROL/CENTRAL TIMER MODUL - REMOVAL) .
2. Perform BODY VERIFICATION TEST .