DTC 83

DTC 83: PCM Communication
1. Check the DTC.
Is DTC 86 indicated?
YES-Do the troubleshooting for DTC 86.
NO-Go to step 2.
2. Clear the DTC.
3. Test-drive the vehicle.
Do the VSA and VSA activation indicators come on, and is DTC 83 indicated?
YES-Go to step 4.
NO-The system is OK at this time.
4. Check the PGM-FI system.
Does the MIL indicator come on or is the PCM's DTC indicated?
YES-Do the applicable troubleshooting for the PCM.
NO-Go to step 5.
5. Test-drive the vehicle.
Is DTC 83 indicated? and no PCM's DTC?
YES- Replace the VSA modulator-control unit.
NO-The system is OK at this time.