DTC 59-1

DTC 59-1: SH-AWD Control Unit Power Supply Monitor Circuit
1. Clear the DTC with the HDS.
2. Start the engine.
3. Check for DTCs with the HDS.
Is DTC 59-1 indicated?
YES - Go to step 4.
NO - intermittent failure, the system is OK at this time.

4. Measure 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.