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 off1. Disconnect the VTM-4 control unit connector A (22P).
2. Turn the ignition switch ON (II).
3. Watch the VTM-4 LOCK indicator.
Does the VTM-4 LOCK indicator come on?
YES - Go to step 4.
NO - Check for poor connections or loose terminals at the VTM-4 control unit connectors. If the connections are OK, replace the VTM-4 control unit.
4. Turn the ignition switch OFF.
5. Disconnect the VTM-4 LOCK switch 6P connector.
6. Check for continuity between the No. 16 terminal of the VTM-4 control unit connector A (22P) and body ground.
Is there continuity?
YES - Repair short to ground in the wire between the VTM-4 control unit (A16) and the VTM-4 LOCK switch.
NO - Replace the VTM-4 LOCK switch.