83-1

VSA DTC Troubleshooting: 83

DTC 83:

PGM-FI Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Reading and Clearing Diagnostic Trouble Codes.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Check for DTCs with the HDS.

Is DTC 86 indicated with DTC 83 at the same time?

YES -

Do the DTC 86 troubleshooting 86-1.�

NO -

Go to step 3.

3. Check for fuel and emissions systems DTCs with the HDS Initial Inspection and Diagnostic Overview.

Are any DTCs indicated?

YES -

Do the applicable troubleshooting for the PCM.�

NO -

Go to step 4.

4. Clear the DTC with the HDS.

5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then start the engine.

6. Check for DTCs with the HDS.

Is DTC 83 indicated?

YES -

Go to step 7.

NO -

Intermittent failure, the system is OK at this time. Check for loose terminals between the PCM connector A (49P) and the VSA modulator-control unit 46P connector. Refer to intermittent failures troubleshooting.�

7. 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.

8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then start the engine.

9. Check for DTCs with the HDS.

Is DTC 83 indicated?

YES -

Check for loose terminals in the VSA modulator-control unit 46P 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.�