FixVault

3. Pcm Ground Circuits Open

With the ignition off.

Measure the resistance of the Ground circuits from the PCM C5 harness connector.

Fig 1: Measuring Ground Circuits Resistance From PCM C5 Harness Connector
G01837917Courtesy of DAIMLERCHRYSLER CORP.

Is the resistance below 5.0 ohms on each ground circuit? 

  1. Yes  >> Go to 4
  2. No  >> Repair the Ground circuit(s) for an open.

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