3. Measure The Resistance Of The Can B Bus (+) Circuit

Turn the ignition off.

Measure the resistance between ground and the CAN B Bus (+) circuit at the CLP/SSM harness connector.

Fig 1: Measuring Resistance Between Ground & CAN B Bus (+) Circuit At The CLP/SSM Harness Connector

Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 10K ohms? 

1. Yes  >> Repair the CAN B Bus (+) circuit for a short to ground.

   See VTSS VERIFICATION TEST  .

2. No  >> Replace the Central Locking Pump/Security System Module. See SECURITY SYSTEM MODULE  .

   See VTSS VERIFICATION TEST  .