DTC 83: ECM/PCM

1. Check for other DTCs.

Is DTC 86 indicated?

YES | - | Do the troubleshooting for the DTC 86.■
NO | - | Go to Step 2 .

1. Clear the DTC using the HDS.

1. Disconnect the HDS from the 16P DLC.

1. Turn the ignition switch OFF, then turn it ON (II) again.

1. Test-drive the vehicle.

Do the VSA and VSA activation indicator come on, and is DTC 83 indicated?

YES | - | Go to Step 6 .
NO | - | Intermittent failure; the system is OK at this time.■

1. Check the PGM-FI system.

Does the MIL indicator come on or is the ECM/PCM's DTC indicated?

YES | - | Do the applicable troubleshooting for the ECM/PCM.■
NO | - | Go to Step 7 . (A/T) Check for loose terminals at the ECM connectors, and go to Step 8 . (M/T)

1. Check the A/T gear position indicator.

Does the D indicator come on while neutral position (N) selected or is PCM's DTC indicated?

YES | - | Do the applicable troubleshooting for the PCM.■
NO | - | Check for loose terminals at the PCM connectors, and go to Step 8 .

1. Clear the DTC using the HDS.

1. Disconnect the HDS from the 16P DLC.

1. Turn the ignition switch OFF, then turn it ON (II) again.

1. Test-drive the vehicle.

Is DTC 83 indicated and no ECM/PCM's DTC stored?

YES | - | Replace the VSA modulator-control unit. ■
NO | - | The system is OK at this time.■