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3. Sci Transmit Circuit Open

With the ignition off.

Measure the resistance of the SCI Transmit circuit from the TCM harness connector to the DLC.

Fig 1: Measuring Resistance Of SCI Transmit Circuit From TCM Harness Connector To DLC
G01837977Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms? 

  1. Yes  >> Go to 4
  2. No  >> Repair the SCI Transmit circuit for an open.

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

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