The VTM-4 Lock Indicator Comes On When the Ignition Switch Is Turned On (II) and Does Not GO Off

The VTM-4 LOCK indicator comes on when the ignition switch is turned ON (II) and does not go off
1. Disconnect VTM-4 control unit connector A (22P) from the VTM-4 control unit.
2. Turn the ignition switch ON (II), and check the VTM-4 LOCK indicator.
Does the VTM-4 LOCK indicator come on with the ignition switch ON (II)?
YES - Go to step 3.
NO - Check for loose terminal fit in the VTM-4 control unit connectors. If it is normal, replace the VTM-4 control unit.
3. Turn the ignition switch OFF.
4. Disconnect the VTM-4 LOCK switch connector.
5. Check for continuity between the Al 6 terminal of the VTM-4 control unit and body ground.





Is there continuity?
YES - Repair short to ground in the wire between the A16 terminal of the VTM-4 control unit and the VTM-4 LOCK switch.
NO - Replace the VTM-4 LOCK switch.