Vehicle Rises Abnormally
- If vehicle height is excessive, check for defective height sensor, control unit, solenoid valve or wire circuit. Inspect for blown fuse No. 12 or 19. If necessary, replace fuse and/or repair circuit.
- If fuses are not blown, check for minimum 10 volts between control unit terminals 31 (ignition) and 20 (ground). If 10 volts is not available, an open exists in circuit 31 or 20. If 10 volts is read, press height control switch. If voltage falls below 10 volts, inspect ignition power input to height control switch.
- If no power input, repair wiring between ignition switch and height control switch. If power was input, repair wiring between height control switch and control unit. If 10 volts or more appear while pressing height control switch, proceed to step 4).
- Verify height indicator light illuminates when switch is operated. If not, does light come on when control unit terminal No. 2 is grounded. See Figure . If power is available and light bulb is not broken, replace control unit.
- If height indicator light does not go out when switch is operated, remove 2 control unit connectors. If light remains on, repair wiring between height indicator light and control unit. If light goes out, replace control unit. Verify solenoid valves and air lines operate freely.