57-3

SH-AWD DTC Troubleshooting: 57-1, 57-3

DTC 57-1, 57-3: Right Clutch Electromagnetic Coil Malfunction

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

1. Turn the ignition switch to ON (II).

2. Make sure the HDS communicates with vehicle and the SH-AWD control unit. If it doesn't, troubleshoot the DLC circuit. Testing and Inspection

3. Clear the DTC with the HDS.

4. Do the clutch function test with the HDS. The SH-AWD Indicator Does Not Come On

5. Check for DTCs with the HDS.

Is DTC 57-1 or 57-3 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. Disconnect SH-AWD control unit connector B (8P) and the right solenoid 4P connector.

8. Connect between right solenoid 4P connector terminal No. 1 to body ground with a jumper wire.






9. Check for continuity between SH-AWD control unit connector terminal B7 and body ground.

Is there continuity?
YES - Go to step 10.

NO - Repair open in the wires between the SH-AWD control unit and the right clutch electromagnetic coil.






10. Remove the jumper wire from right solenoid 4P connector terminal No. 1.

11. Connect between right solenoid 4P connector terminal No. 2 to body ground with a jumper wire.






12. Check for continuity between SH-AWD control unit connector terminal B6 and body ground.

Is there continuity?
YES - Go to step 13.

NO - Repair open in the wires between the SH-AWD control unit and the right clutch electromagnetic coil.






13. Remove the jumper wire from right solenoid 4P connector terminal No. 1.

14. Reconnect all connectors.

15. Turn the ignition switch to ON (II).

16. Check the REAR DIFFERENTIAL FLUID TEMPERATURE in the DATA LIST is above 68 °F (20 °C) with the HDS before proceeding to the next step. If the temperature is below 68 °F (20 °C), drive the vehicle to warm up the rear differential until the fluid temperature becomes above 68 °F (20 °C).

17. Disconnect the right solenoid 4P connector.

18. Measure resistance between right solenoid 4P connector terminals No. 1 and No. 2.

Is there 1.8 Ohms or more?
YES - Replace the rear differential right side case. Rear Differential Side Case Replacement

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