111-1

VSA DTC Troubleshooting: 111-1

DTC 111:

Back-Up Light Switch 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) for at least 5 seconds.

2. Check for DTCs with the HDS.

Is DTC 86 indicated?

YES -

Do the troubleshooting for DTC 86 86-1.

NO -

Go to step 3.

3. Check the BACK-UP LIGHT SWITCH in the PGM-FI DATA LIST with the HDS.

Does it indicate ON when the shift lever is in reverse, and OFF when the shift lever is in neutral?

YES -

Go to step 4.

NO -

Check the back-up light switch Testing and Inspection.

4. Check the BACK-UP LIGHT SWITCH in the VSA DATA LIST with the HDS.

Does it indicate ON when the shift lever is in reverse, and OFF when the shift lever is in neutral?

YES -

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

NO -

Go to step 5.

5. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection.

6. Turn the ignition switch to LOCK (0).

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

8. Check the BACK-UP LIGHT SWITCH in the VSA DATA LIST with the HDS.

Does it indicate ON when the shift lever is in reverse, and OFF when the shift lever is in neutral?

YES -

Check for loose terminals in the VSA modulator-control unit 32P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit Service and Repair.

NO -

If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.