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Home >> Chrysler >> 2004 >> Crossfire Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Electronic Control Modules >> Electronic Control Modules - Electrical Diagnostics >> Diagnosis And Testing >> *No Response From Powertrain Control Module >> Diagnostic Test >> 7. Sci Transmit Circuit Open

7. Sci Transmit Circuit Open

Turn the ignition off.

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

Fig 1: Measuring Resistance Of PCM SCI Transmit Circuit From PCM Harness Connector To DLC
G01837921Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms? 

  1. Yes  >> Go to 8
  2. No  >> Repair the PCM SCI Transmit circuit for an open.

    Perform POWERTRAIN VERIFICATION TEST - VER 2 in ENGINE - ELECTRICAL DIAGNOSTICS article.

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