Test G: DTC C1830 - Air Compressor Relay Circuit Failure
Test G: DTC C1830 - Air Compressor Relay Circuit FailureRefer to Vehicle/Diagrams, Vehicle Dynamic Suspension for schematic and connector information.
Normal 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 suspension module
G1-G5:
