Test L: the Air Compressor Continuously Cycles With the Ignition Switch In the Off Position and No DTC Is Set
Test L: The Air Compressor Continuously Cycles With The Ignition Switch In The OFF Position And No DTC Is SetNormal Operation
The air suspension module controls the air compressor relay by grounding circuit 420 (DB/YE), this engages the relay. Once engaged, fused battery voltage is supplied from battery junction box (BJB) fuse 112 (30A) to the relay along circuit 1053 (LB/PK), the voltage travels through the relay and to the air compressor motor along circuit 538 (GY/RD). The motor is provided a ground path along circuit 57 (BK).
Possible Causes
^ Fuse
^ Circuit open
^ Circuit shorted
^ Air compressor relay
^ Air compressor assembly
^ Air suspension module
L1-L3:
