VSA System

VSA DTC Troubleshooting: 83

DTC 83: PCM

1. Turn the ignition switch to ON (II).

2. Check for DTCs with the HDS.

Is DTC 86 indicated?
YES - Do the troubleshooting for DTC 86. 86

NO - Go to step 3.


3. Clear the DTC with the HDS.

4. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

5. Test-drive the vehicle at 19 mph (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 7.

NO - The system is OK at this time. Refer to intermittent failures. Reading and Clearing Diagnostic Trouble Codes


7. Check for fuel and emissions systems DTCs with the HDS.

Are any PCM DTCs indicated?
YES - Do the applicable troubleshooting for the PGM-FI system DTC.

NO - Go to step 8.


8. Check the gear position indicator.

Does the D indicator come on while neutral position (N) is selected or is a PCM DTC indicated?
YES - Do the applicable troubleshooting for the A/T system.

NO - Check for loose terminals at the PCM connectors, and go to step 9.


9. Clear the DTC with the HDS.

10. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

11. Test-drive the vehicle at 19 mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.

12. Check for DTCs with the HDS.

Is DTC 83 indicated and no PCM's DTC?
YES - Substitute a known-good PCM, and recheck. If the code returns, check for loose terminals or poor connections at the VSA modulator-control unit 47P connector. If connections are good, replace the VSA modulator-control unit, Service and Repair and recheck.

NO - The system is OK at this time. Refer to intermittent failures. Reading and Clearing Diagnostic Trouble Codes