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No Termination Failure

  1. Turn ignition switch to OFF position. Disconnect Powertrain Control Module (PCM) harness connector C3. Using a jumper wire, ground terminal No. 30 (Violet/Brown wire) at PCM harness connector C3. See Figure . Connect scan tool to Data Link Connector (DLC). Turn ignition switch to ON position. Using scan tool, enter SYSTEM MONITORS then 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 POWERTRAIN VERIFICATION TEST VER-2  under VERIFICATION TESTS.
    2. NOTE: For bus failure message to appear, both instrument cluster and PCM would be open.
  2. Turn ignition switch to OFF position. Using a jumper wire, ground terminal No. 28 (White/Black wire) at PCM harness connector C3. Turn ignition switch to ON position. Using scan tool, enter SYSTEM MONITORS then CCD BUS TEST. If scan tool displays SHORT TO GROUND, replace PCM and instrument cluster. See INSTRUMENT PANELS - CHEROKEE article. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION. Perform POWERTRAIN VERIFICATION TEST VER-2  under VERIFICATION TESTS. If scan tool does not display SHORT TO GROUND, repair open in White/Black wire. Perform POWERTRAIN VERIFICATION TEST VER-2  under VERIFICATION TESTS.
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