DTC 81-2

DTC 81-2: Left Search Coil Sensor (Open or Short)

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

1. Turn the ignition switch 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. Turn the ignition switch OFF.
4. Disconnect SH-AWD control unit connector A (26P).
5. Check for continuity between SH-AWD control unit connector terminals A4 and A17.





Is there continuity?

YES - Go to step 6.

NO - Go to step 8.

6. Measure the resistance between SH-AWD control unit connector terminals A4 and A17.





Is there 2.0 Ohms or more?

YES - Go to step 7.

NO - Go to step 9.

7. Check for continuity between SH-AWD control unit connector terminal A4 and body ground.





Is there continuity?

YES - Repair short in the wire between SH-AWD control unit connector terminal A4 and body ground.

NO - Check for loose connector terminals at the SH-AWD control unit and repair if necessary. If the connections are OK, substitute a known-good SH-AWD control unit and recheck.

8. Connect a jumper wire between SH-AWD control unit connector terminals A4 and A17. Disconnect the left search coil 2P connector, then check for continuity between left search coil 2P connector terminals No. 1 and No. 2.








Is there continuity?

YES - Replace the rear differential side case.

NO - Repair open in the wire between left search coil 2P connector terminals No. 1 and No. 2.

9. Disconnect, the left search coil 2P connector, then check for continuity between left search coil 2P connector terminals No. 1 and No. 2.





Is there continuity?

YES - Repair short in the wire between SH-AWD control unit connector A and the left search coil connector.

NO - Replace the rear differential side case.