83-13
VSA DTC Troubleshooting: 83-13, 83-14
DTC 83-13:
ECM/PCM Communication Error (Engine Malfunction)
DTC 83-14:
ECM/PCM Communication Error (A/T Malfunction)
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle.
NOTE: Drive the vehicle on a straight section of road, not on a lift.
4. Check for DTCs with the HDS.
Is DTC 83-13 or 83-14 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose terminals between ECM/PCM connector A (49P) and the VSA modulator-control unit 36P connector. Refer to intermittent failures troubleshooting.�
5. Update the ECM/PCM if it does not have the latest software ECM/PCM Update (A/T), or substitute a known-good ECM/PCM.
6. Clear the DTC with the HDS.
7. Test-drive the vehicle.
NOTE: Drive the vehicle on a straight section of road, not on a lift.
8. Check for DTCs with the HDS.
Is DTC 83-13 or 83-14 indicated?
YES -
Go to step 9.
NO -
If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM Service and Repair.�
9. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection. If the unit already has the latest software, substitute a known-good VSA modulator-control unit Service and Repair.
10. Test-drive the vehicle.
NOTE: Drive the vehicle on a straight section of road, not on a lift.
11. Check for DTCs with the HDS.
Is DTC 83-13 or 83-14 indicated?
YES -
Check for loose terminals in the VSA modulator-control unit 36P connector. If the VSA modulator-control unit was updated, substitute a known-good VSA modulator-control unit Service and Repair, then retest. If the VSA modulator-control unit was substituted, go to step 1.
NO -
If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the original VSA modulator-control unit Service and Repair. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.�