DTC 86-31
DTC 86-31: F-CAN Communication with Gauge Control Module Malfunction1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS. Turn the ignition switch OFF, then ON (II) again,
3. Check for DTCs with the HDS.
Is 86-31 DTC indicated?
YES - If the DTC 86-01 is indicated as same time, do the DTC 86-01 troubleshooting. If 86-01 is not indicated, go to step 4.
NO - If any DTCs are indicated, go to the indicated DTCs troubleshooting. If DTC is not indicated, intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the yaw rate-lateral acceleration sensor, the ECM/PCM, the gauge control module, and the VSA modulator-control unit. Refer to intermittent failure.
4. Turn the ignition switch ON (II).
5. Check the indicators in the gauge control module when turning ignition switch ON (II).
Do any indicators come on?
YES - Go to step 6.
NO - Do the gauge control module troubleshooting.
6. Turn the ignition switch OFF.
7. Disconnect the gauge control module 28P connector.
8. Disconnect the VSA modulator-control unit 37P connector.
9. Check for continuity-between the VSA modulator-control unit 37P connector terminal and gauge control module connector (36P) terminal.
Is there continuity?
YES - Substitute a known-good gauge control module, then go to step 1 and recheck. If no DTCs are indicated, replace the original gauge control module.
NO - Repair open in the wire between the gauge control module and the VSA modulator-control unit.