59-1

SH AWD DTC Troubleshooting: 59-1

DTC 59-1:

SH-AWD Control Unit Power Supply Monitor Circuit

NOTE: Before you troubleshoot, review the general troubleshooting information Initial Inspection and Diagnostic Overview.

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

2. Clear the DTC with the HDS.

3. Start the engine.

4. Check for DTCs with the HDS.

Is DTC 59-1 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time.

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





Is there 18 V or more?

YES -

Check the charging system Charging System Indicator Circuit Troubleshooting.

NO -

Substitute a known-good SH-AWD control unit Service and Repair and recheck. If the symptom/indication goes away with the known-good SH-AWD control unit, replace the original SH-AWD control unit Service and Repair.