Height Control System Inoperative
NOTE:
Height control system will remain inoperative while vehicle is turning, has 1 wheel off the ground or traveling over 55 MPH.
- Check for defective height control sensor, switch or wire harness. Test for defective control unit or solenoid valve coil. Follow procedure outlined in VEHICLE RISES ABNORMALLY .
- Verify compressor operation and test pressure switch. Pressure switch operating pressure in "off" position is 137 psi (9.6 kg/cm2 ). In the "on" position, operating pressure is 109 psi (7.7 kg/cm2 ). See Figure .