DTC 59-1

DTC 59-1: SH-AWD Control Unit Power Supply Monitor Circuit

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. Clear the DTC with the HDS.
4. Start the engine.
5. Check for DTCs with the HDS.

Is DTC 59-1 indicated?

YES - Go to step 6.

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

6. Measure the voltage between SH-AWD control unit connector terminals B1 and B2.





Is there 18 V or more?

YES - Check the charging system.

NO - Replace the SH-AWD control unit.