DTC B1170: Gauge Control Module Lost Communication with VSA Modulator-Control Unit (VSA Message)
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Turn the ignition switch OFF, and then back ON (II).
- Check for DTCs with the HDS.
Is DTC B1170 indicated?
YES - Go to step 4.
NO - Intermittent failure, the F-CAN communication line is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition (see BATTERY TEST ) and the charging system (see BATTERY TEST ).
- Check for VSA System DTCs with the HDS.
Are any DTCs indicated?
YES - Go to the INDICATED DTCS TROUBLESHOOTING .
NO - Go to step 5.
- Do the gauge control module input test (see
GAUGE CONTROL MODULE INPUT TEST
).
Are all inputs OK?
YES - Go to step 6.
NO - Repair the faulty input, then recheck for DTCs.
- Substitute a known-good gauge control module.
- Clear the DTCs with the HDS.
- Turn the ignition switch OFF, and then back ON (II).
- Check for the DTCs with the HDS.
Is DTC B1170 indicated?
YES - Substitute a known-good VSA modulator-control unit, and recheck.
NO - The original gauge control module is faulty; replace it (see GAUGE CONTROL MODULE REPLACEMENT ).