B1170

DTC B1170: Gauge Control Module Lost Communication with the 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.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), and then back 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 connections between the gauge control module and the VSA modulator-control unit.

5. Check for VSA system DTCs with the HDS.

Is any DTCs indicated?

YES - Go to the indicated DTCs, then recheck.

NO - Go to step 6.

6. Turn the ignition switch to LOCK (0).
7. Disconnect the gauge control module 36P connector.
8. Disconnect the VSA modulator-control unit 46P connector.
9. Connect the gauge control module 36P connector No. 33 and No. 34 terminals and body ground with jumper wires.






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







Is there less than 3 ohms?

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

NO - Repair an open in the wire.