DTC 43-1

DTC 43-1: Differential Fluid Temperature Sensor Circuit Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information.

1. Turn the ignition switch ON (II).
2. Check for DTCs with the HDS.

Is DTC 42-1 or 42-2 indicated?

YES - Go to the indicated DTC's troubleshooting.

NO - Go to step 3.

3. Clear the DTC with the HDS.
4. Start the engine.
5. Let the engine idle 1 minutes.
6. Test-drive the vehicle for 5 minute.
7. Check for DTCs with the HDS.

Is DTC 43-1 indicated?

YES - Go to step 8.

NO - Intermittent failure, the system is OK at this time.

8. Turn the ignition switch OFF.
9. Disconnect SH-AWD control unit connector A (20P).
10. Disconnect the rear differential fluid temperature sensor 2P connector.
11. Check for continuity between rear differential fluid temperature sensor 2P connector terminals No. 1 and No. 2.





Is there continuity?

YES - Repair short in the wire between rear differential fluid temperature sensor 2P connector terminals No. 1 and No. 2.

NO - Go to step 12.

12. Reconnect all connectors.
13. Update the SH-AWD control unit if it does not have the latest software or substitute a known-good SH-AWD control unit.
14. Start the engine.
15. Let the engine idle 1.
16. Check for DTCs with the HDS.

Is DTC 43-1 indicated?

YES - Replace the rear differential fluid temperature sensor.

NO - Replace the original SH-AWD control unit.