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

Turn the ignition off.

Disconnect the CLP/SSM harness connector.

Disconnect the BCM harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the CAN B Bus (+) circuit from the CLP/SSM harness connector to the BCM harness connector.

Fig 1: Measuring Resistance Of CAN B Bus (+) Circuit
G01838620Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 1.0 ohm? 

  1. Yes  >> Go to 2
  2. No  >> Repair the CAN B Bus (+) circuit for an open.

    See BODY VERIFICATION TEST .

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