44-12

SH-AWD DTC Troubleshooting: 44-12

DTC 44-12: SH-AWD Relay Stuck ON

NOTE: Before you troubleshoot, review the general troubleshooting information. Initial Inspection and Diagnostic Overview

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Clear the DTC with the HDS.

3. Start the engine.

4. Check for DTCs with the HDS.

Is DTC 44-12 indicated?
YES - Go to step 5.

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


5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Remove the SH-AWD relay, Service and Repair then test the SH-AWD relay. Testing and Inspection

Is the SH-AWD relay OK?
YES - Go to step 7.

NO - Replace the SH-AWD relay. Service and Repair


7. Disconnect SH-AWD control unit connector A (20P).

8. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

9. Measure the 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 connector terminal A17 and the SH-AWD relay (FSR line).

NO - Go to step 10.






10. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

11. Disconnect SH-AWD control unit connector B (8P).

12. Measure the 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, SH-AWD Control Unit Update or substitute a known-good SH-AWD control unit, Service and Repair 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. Service and Repair