Trouble Code 18 (MV1, P/N Shift-Lock or R-Lock, MV-Wk)
MV 1, LIFTING SOLENOID P/N SHIFT-LOCK OR SOLENOID VALVE R-LOCK, MV-WKExplanation
This defect code is stored when the wires to the specified valves have a break or a short to ground. It is also set when one or several solenoid valves have a short to positive or a short among each other.
Effect of Defect
Mechanical emergency program
Possible Cause
Wires defective or winding short of solenoid valves.
Troubleshooting
Follow displayed scan tool instructions.