Suspension - Air Suspension Lamp ON/Inoperative
No: 60/01/03/NAS
Ref:
Issue: 1
Date: 01/17/03
Air Suspension Pressure Switch Failure
AFFECTED VEHICLE RANGE:
Range Rover (LP) All
SITUATION:
WARNING LIGHT ILLUMINATES AND AIR SUSPENSION INOPERATIVE
A customer may complain of inoperative air suspension and/or that an air suspension warning light has illuminated.
RESOLUTION:
REPLACE PRESSURE SWITCH AS FIRST REPAIR EFFORT
Interrogation of the Air Suspension Electronic Control Unit (ECU) with TestBook/T4 may a fault code inlet solenoid valve stuck open". The code
could mean that the pressure switch is faulty. The code does not necessarily mean that the valve block must be replaced. The pressure switch may
stick intermittently and TestBook/T4 has not diagnosed the fault correctly.
After interrogation of the ECU with TestBook/T4 determines the fault code "inlet solenoid valve stuck open," replace the pressure switch as the first
effort to repair the vehicle.
PARTS INFORMATION:
ANR3902 Air suspension pressure switch Qty 1
Locally sourced:
^ Loctite 572 Low strength sealant
WARRANTY CLAIMS:
60.50.07 Time 0.70 hrs.
Install replacement
FAULT CODE: Z
Normal warranty policy and procedures apply.
Material allowance is included in labor operation.
REPAIR PROCEDURE
121
REPLACE AIR SUSPENSION PRESSURE SWITCH
1. Refer to RAVE Workshop Manual, section 60.50.07 and remove pressure switch.
2. Apply Loctite 572 to the thread of the replacement pressure switch
3. Tighten the new switch to 13 Nm (10 lbf.ft).
4. Raise and lower the suspension.
5. If the air suspension is still inoperative then further investigation will be required.
