B1170

DTC B1170: Gauge Control Module Lost Communication with the VSA Modulator-Control Unit (VSA Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, 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 connection between the gauge control module and the VSA modulator-control unit.

5. Check for VSA System DTCs with the HDS.

Are there any DTCs indicated?

YES - Go to the indicated DTCs, then recheck.

NO - Go to step 6.

6. Turn the ignition switch OFF.
7. Disconnect the gauge control module connector A (12P).
8. Disconnect the VSA modulator-control unit 46P connector.




9. Connect the gauge control module connector A (12P) connector No. 6 and No. 12 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 continuity?

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 open in the wire.