56-3

SH-AWD DTC Troubleshooting: 56-3

DTC 56-3: Right Clutch Electromagnetic Coil Current 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 56-3 indicated?
YES - Go to step 6.

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


6. Measure voltage between SH-AWD control unit connector terminals B2 and body ground.

Is there less than 0.5 V?
YES - Go to step 7.

NO - Repair open in the wire between SH-AWD control unit connector B and body ground or poor ground (G603).






7. Turn the ignition switch to LOCK (0).

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

9. Connect SH-AWD control unit connector terminals B6 and B7 with a jumper wire. Disconnect the right solenoid 4P connector, then check for continuity between right solenoid 4P connector terminals No. 1 and No. 2.

Is there continuity?
YES - Go to step 10.

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










10. Remove the jumper wire from SH-AWD control unit connector terminals B6 and B7.

11. Check for continuity between SH-AWD control unit connector terminals B2 and B6, then check for continuity between SH-AWD control unit connector terminals B2 and B7.

Is there continuity?
YES - Repair short to ground or short to the ground wire between the SH-AWD control unit and the right clutch electromagnetic coil.

NO - Go to step 12.










12. Check for continuity between SH-AWD control unit connector terminals B6 and B7.

Is there continuity?
YES - Repair short in the wires between the SH-AWD control unit and the right clutch electromagnetic coil.

NO - Go to step 13.






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

14. Measure voltage between SH-AWD control unit connector terminals B2 and B7.

Is there more than 0.5 V?
YES - Repair short to power in the wire between SH-AWD control unit and the right clutch electromagnetic coil.

NO - Go to step 15.






15. Measure voltage between SH-AWD control unit connector terminals B2 and B6.

Is there more than 0.5 V?
YES - Repair short to power in the wire between SH-AWD control unit connector terminal B6 and the right clutch electromagnetic coil.

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