59-1

VTM-4 DTC Troubleshooting: 59-1

DTC 59-1: Right/Left Clutch Electromagnetic Coil Power Supply

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

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

2. Make sure the HDS communicates with the vehicle and the VTM-4 control unit. If it doesn't, troubleshoot the DLC circuit. Testing and Inspection

3. Clear the DTC with the HDS.

4. Test-drive the vehicle, and 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. Check the battery.

Is the specified battery installed, and is it fully charged?
YES - Go to step 6.

NO - Replace or charge the battery.


6. Watch the charging system indicator.

Does the charging system indicator come on with the ignition switch to ON (II), and go off with the engine started?
YES - Check for poor connections or loose terminals at the VTM-4 control unit connectors. If the connections are OK, substitute a known-good VTM-4 control unit Service and Repair and recheck. If the symptom/indication goes away with the known-good VTM-4 control unit, replace the original VTM-4 control unit. Service and Repair

NO - Do the charging system troubleshooting. Charging System Indicator Circuit Troubleshooting