DTC 83: ECM/PCM Communication
- Turn the ignition switch ON (II).
- Check for DTC with the HDS.
Is DTC 86 indicated?
YES - Do the troubleshooting for DTC 86.
NO - Go to step 3.
- Clear the DTC with the HDS.
- Test-drive the vehicle.NOTE: Drive the vehicle on the road, not on a lift.
- Check for DTCs with the HDS.
Is DTC 83 indicated?
YES - Go to step 6.
NO - The system is OK at this time.
- Check for fuel and emission systems (PGM-FI) DTCs with the HDS (see GENERAL TROUBLESHOOTING INFORMATION
).
Are any ECM/PCM DTCs indicated?
YES - Do the applicable troubleshooting for the ECM/PCM.
NO - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ), and retest.