DTC 44-12

DTC 44-12: SH-AWD Relay Stuck ON

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

1. Turn the ignition switch to ON (II).
2. Make sure the HDS communicates with the vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit.
3. Clear the DTC with the HDS.
4. Start the engine.
5. Check for DTCs with the HDS.

Is DTC 44-12 indicated?

YES - Go to step 6.

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

6. Turn the ignition switch to LOCK (0).
7. Remove the SH-AWD relay, than test the SH-AWD relay.

Is the SH-AWD relay OK?

YES - Go to step 8.

NO - Replace the SH-AWD relay.

8. Disconnect SH-AWD control unit connector A (20P).
9. Turn the ignition switch to ON (II).
10. Measure voltage between SH-AWD control unit connector terminal A17 and body ground.





Is there battery voltage?

YES - Repair short to power in the wire between the SH-AWD control unit and the SH-AWD relay (FSR line).

NO - Go to step 11.

11. Disconnect SH-AWD control unit connector B (8P).
12. Measure voltage between SH-AWD control unit connector terminals B1 and B2.





Is there battery voltage?

YES - Repair short to power in the wire between the SH-AWD control unit and the SH-AWD relay (PWR line).

NO - Update the SH-AWD control unit if it does not have the latest software, or substitute a known-good SH-AWD control unit and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit, replace the original SH-AWD control unit.