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No Response: Powertrain Control Module (PCM)

CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector or battery.
  1. Attempt to start and run engine. If engine does not run, see appropriate BASIC DIAGNOSTIC PROCEDURES article in ENGINE PERFORMANCE. If engine runs, turn engine off and go to next step.
  2. Turn ignition switch to OFF position. Disconnect Powertrain Control Module (PCM) Black connector C3 (Gray connector C3 on Durango). Connect scan tool to DLC. Turn ignition switch to ON position. Connect jumper wire between ground and PCM connector C3 terminal No. 30 (Violet/Brown wire). Using scan tool, perform CCD bus test. If scan tool displays SHORT TO GROUND, go to next step. If scan tool does not display short to ground, repair open in Violet/Brown wire. Perform BODY VERIFICATION TEST  .
  3. Move jumper wire to PCM connector C3 terminal No. 28 (White/Black wire). Perform CCD bus test. If scan tool displays SHORT TO GROUND, go to next step. If scan tool does not display short to ground, repair open in White/Black wire. Perform BODY VERIFICATION TEST  .
  4. Check all connectors for good terminal contact. Repair connectors as necessary. If connectors are okay, replace PCM. See POWERTRAIN CONTROL MODULE (PCM) VERIFICATION TEST  .
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