Symptom Chart

SYMPTOM	POSSIBLE MESSAGE	POSSIBLE CAUSES	ACTION
Vehicle air suspension will not raise the vehicle when requested	Suspension fault message displayed on the Instrument Panel Cluster (IPC)	Air reservoir 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 EXPANSION CHAMBER
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 Jaguar Land Rover approved diagnostic equipment, REFER to: FRONT SUSPENSION HEIGHT SENSOR and REAR SUSPENSION HEIGHT SENSOR .
Vehicle leans/tilts after being left overnight 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 Jaguar Land Rover approved diagnostic equipment, REFER to: FRONT SUSPENSION HEIGHT SENSOR and REAR SUSPENSION HEIGHT SENSOR .
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 Faulty height sensor	Inspect the air harness, valves and air springs for blockage and/or leaks Check operation of height sensors Where possible, refer to the guided diagnostic routine on the Jaguar Land Rover approved diagnostic equipment, Refer to: FRONT SUSPENSION HEIGHT SENSOR and REAR SUSPENSION HEIGHT SENSOR .
Changes between different ride- heights are not smooth	-	Faulty height sensor(s)	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 Jaguar Land Rover approved diagnostic equipment, REFER to: FRONT SUSPENSION HEIGHT SENSOR and REAR SUSPENSION HEIGHT SENSOR .