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. Wait for 6 seconds or more.

4. Check for DTCs with the HDS.

Is DTC B1170 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connection between the gauge control module and the VSA modulator-control unit.


5. Check for VSA System DTCs with the HDS. Initial Inspection and Diagnostic Overview

Are there any DTCs indicated?
YES - Go to the indicated DTCs troubleshooting, then recheck.

NO - Go to step 6.


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

7. Disconnect gauge control module connector B (14P).

8. Disconnect the VSA modulator-control unit 46P connector.

9. Connect gauge control module connector B (14P) terminals No. 1 and No. 8 and body ground with jumper wires.






10. Check for continuity between body ground and VSA modulator-control unit 46P connector terminals No. 38 and No. 39 individually.

Is there continuity?
YES - Substitute a known-good VSA modulator-control unit Service and Repair, and recheck. If the indication goes away, replace the original VSA modulator-control unit. Service and Repair If the DTC is still present, replace the gauge control module. Service and Repair

NO - Repair an open in the wire.