Symptom Chart

SYMPTOM	POSSIBLE MESSAGE	POSSIBLE CAUSES	ACTION
Vehicle air suspension will not raise the vehicle when requested	Suspension fault message displayed on the IPC (IPC)	Expansion chamber air leak	Using the Jaguar Land Rover approved diagnostic equipment, check for air suspension related DTCs and repair as necessary Inspect the suspension air supply unit expansion chamber for leaks. If a leak is identified, install a new expansion chamber as required. Refer to: SUSPENSION AIR SUPPLY UNIT (G2413635)
System detects extended mode unnecessarily when lowering	-	Crossed gallery and air spring pipes Incorrect valve block installed to front or rear Damage or blockage in air harness Faulty height sensor	Inspect the air harness, valves and air springs for blockages and/or leaks Check operation of height sensors Where possible, refer to the guided diagnostic routine on the approved diagnostic system Refer to: AIR SUSPENSION SYSTEM DEPRESSURIZE AND PRESSURIZE - SPORTBRAKE
Vehicle leans/tilts after being left over-night or for some days	-	Leaking air spring(s) Leak from corner valve to gallery Exhaust valve stuck open	Inspect the air harness, valves and air springs for blockages and/or leaks Check operation of height sensors Where possible, refer to the guided diagnostic routine on the approved diagnostic system Refer to: AIR SUSPENSION SYSTEM DEPRESSURIZE AND PRESSURIZE - SPORTBRAKE
After vehicle left over-night or for some days system regularly indicates "Suspension vehicle raising slowly" when first driving off	Suspension vehicle raising slowly	Leaking air spring(s) Leaking reservoir	Inspect the air harness, valves and air springs for blockages and/or leaks Check operation of height sensors Where possible, refer to the guided diagnostic routine on the approved diagnostic system Refer to: AIR SUSPENSION SYSTEM DEPRESSURIZE AND PRESSURIZE - SPORTBRAKE
Changes between different rideheights are not smooth	-	Faulty height sensor	Inspect the air harness, valves and air springs for blockages and/or leaks Check operation of height sensors Where possible, refer to the guided diagnostic routine on the approved diagnostic system Refer to: AIR SUSPENSION SYSTEM DEPRESSURIZE AND PRESSURIZE - SPORTBRAKE