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DTC 83: PCM Malfunction

  1. Turn the ignition switch to ON (II).
  2. Check for DTC with the HDS.

    Is DTC 86 indicated? 

    YES  -Do the troubleshooting for DTC 86 (see DTC 83: PCM MALFUNCTION  ).

    NO  -Go to step 3.

  3. Clear the DTC with the HDS.
  4. Turn the ignition switch to LOCK (0).
  5. Test-drive the vehicle at 19mph (30 km/h) or more.
    NOTE: Drive the vehicle on the road, not on a lift.
  6. Check for DTCs with the HDS.

    Is DTC 83 indicated? 

    YES  -Go to step 6.

    NO  -The system is OK at this time.

  7. Check for fuel and emissions systems DTCs with the HDS (see GENERAL TROUBLESHOOTING INFORMATION ).

    Are any PCM DTCs indicated? 

    YES  -Do the applicable troubleshooting for the PCM.

    NO  -Check for loose terminals in the ABS modulator-control unit 47P connector. If necessary, substitute a known-good ABS modulator-control unit (see ABS MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  ), and retest.

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