FixVault

"Lock-In" Error Correction

Locate screw on solenoid valve. Turn screw toward "S" to reduce the lock-in speed. Turn screw toward "F" to increase lock-in speed.

VACUUM CONTROL VALVE CIRCUIT FUNCTIONAL TESTS

DASH SWITCH AT "CRUISE" OR "AUTO"
Check Should Indicate  Possible Cause or Malfunction  Correction 
Green engage light should turn on Dash switch, harness, relay or bulb Replace as required.
Control harness relay should energized. Open in coil relay, or disconnect or open circuit in harness. Replace or repair as required.
Vacuum control valve should open and there should be vacuum at disconnected hose. Defective control valve. Replace as required.
Obstruction or leak in vacuum supply to valve. Repair as required.
Disconnect or open in harness to valve. Repair as required.
REMOVE JUMPER WIRE 
Check Should Indicate  Possible Cause or Malfunction  Correction 
Green engage light should turn out. Shorted or stuck relay. Harness shorted to ground Replace or repair.
Control valve should close, no vacuum at disconnected hose. Control valve stuck or leaking Replace valve