B1170

DTC Troubleshooting: B1170

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. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0), and then back to ON (II).

3. 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 Testing and Inspection and the charging system. Alternator and Regulator Circuit Troubleshooting


4. Check for VSA System DTCs with the HDS.

Are any DTCs indicated?
YES - Go to the indicated DTCs troubleshooting.

NO - Go to step 5.


5. Do the gauge control module input test. Gauge Control Module Input Test

Are all inputs OK?
YES - Go to step 6.

NO - Repair the faulty input, then recheck for DTCs.


6. Substitute a known-good gauge control module.

7. Clear the DTCs with the HDS.

8. Turn the ignition switch to LOCK (0), and then back to ON (II).

9. 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. Service and Repair

DTC Troubleshooting: B2131

DTC B2131: Steering Angle Sensor MAX Error

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A. Troubleshooting - B-CAN System Diagnosis Test Mode A

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Check for DTCs with the HDS.

Is DTC B2131 indicated?
YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.


4. Check for DTCs in the VSA system with the HDS.

Are any DTCs indicated?
YES - Go to the VSA indicated DTC's troubleshooting.

NO - Go to step 5.


5. Check for DTCs with the HDS.

Is DTC B1170 indicated?
YES - Go to DTC B1170 troubleshooting.

NO - Go to step 6.


6. Check for DTCs with the HDS.

Is DTC B2105 indicated?
YES - Go to DTC B2105 troubleshooting.

NO - Replace the adaptive front lighting control unit.