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2. Ground Circuit Open

Turn the ignition off.

Measure the resistance of the Ground circuit from the TCM harness connector.

Fig 1: Measuring Resistance Of Ground Circuit From TCM Harness Connector
G01837976Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms? 

  1. Yes  >> Go to 3
  2. No  >> Repair the Ground circuit for an open.

    Perform TRANSMISSION VERIFICATION TEST. See ELECTRICAL DIAGNOSTICS - NAG1 article.

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