DTC 52-3
DTC 52-3: Left Clutch Electromagnetic Coil Current MalfunctionNOTE: Before you troubleshoot, review the general troubleshooting information.
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Do the clutch function test with the HDS.
4. Check for DTCs with the HDS.
Is DTC 52-3 indicated?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time.
5. Check for voltage between SH-AWD control unit connector terminal B2 and body ground.
Is there less than 0.5 V?
YES - Go to step 6.
NO - Repair open in the wire between SH-AWD control unit connector B and body ground or poor ground (G603).
6. Turn the ignition switch OFF.
7. Disconnect SH-AWD control unit connector B (8P).
8. Connect a jumper wire between SH-AWD control unit connector terminals B4 and B5. Disconnect the left solenoid 4P connector, then check for continuity between left solenoid 4P connector terminals No. 1 and No. 2.
Is there continuity?
YES - Go to step 9.
NO - Repair open in the wires between the SH-AWD control unit and the left clutch electromagnetic coil.
9. Remove the jumper wire from the SH-AWD control unit connector terminals B4 and B5.
10. Check for continuity between SH-AWD control unit connector terminals B2 and B4, then check for continuity between SH-AWD control unit connector terminals B2 and B5.
Is there continuity?
YES - Repair short to ground or short to the ground wire between the SH-AWD control unit and the left clutch electromagnetic coil.
NO - Go to step 12.
11. Check for continuity between SH-AWD control unit connector terminals B4 and B5.
Is there continuity?
YES - Repair short in the wires between the SH-AWD control unit and the left clutch electromagnetic.
NO - Go to step 12.
12. Turn the ignition switch ON (II).
13. Measure voltage between SH-AWD control unit connector terminals B2 and B5.
Is there more than 0.5 V?
YES - Repair short to power in the wires between the SH-AWD control unit and the left clutch electromagnetic.
NO - Go to step 14.
14. Measure voltage between SH-AWD control unit connector terminals B2 and B4.
Is there more than 0.5 V?
YES - Repair short to power in the wire between the SH-AWD control unit connector terminal B4 and left clutch electromagnetic coil.
NO - Substitute a known-good SH-AWD control unit and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, replace the rear differential left side case.