DTC 111: Back-Up Light Switch Malfunction
- Turn the ignition switch to ON (II) for at least 5 seconds.
- Check for DTCs with the HDS.
Is DTC 86 indicated?
YES -Do the troubleshooting for DTC 86 (see DTC 86: F-CAN COMMUNICATION MALFUNCTION ).
NO -Go to step 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 (see BACK-UP LIGHT SWITCH TEST/REPLACEMENT ).
- 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.
- Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ). If the unit already has the latest software, substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
- Turn the ignition switch to LOCK (0).
- Turn the ignition switch to ON (II).
- 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 -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 (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ). If any other DTCs are indicated, go to the indicated DTCS TROUBLESHOOTING .
NO -Check for loose terminals in the VSA modulator-control unit 32P connector. If the VSA modulator-control unit was updated, substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ), then retest. If the VSA modulator-control unit was substituted, go to step 1.