C1804

C1804 HEIGHT ADJUSTING MALFUNCTION (COMPRESSOR)





Description
The compressor motor relay is controlled by the suspension control unit. The suspension control unit supplies voltage to the coil side of the relay to activate it. The compressor motor relay, when activated, supplies power to the suspension air compressor.




DTC Logic

DTC DETECTION LOGIC

DTC Detection Logic:

Diagnosis Procedure
1.CHECK COMPRESSOR MOTOR RELAY OPERATION

CAUTION:
The "COMPRESSOR" active test will remain ON until it is turned off using CONSULT-III. Allowing the compressor to run for an extended period of time may cause damage to the air levelizer system components due to excessive air pressure.
CONSULT-III
1. Turn ignition ON.
2. Select "COMPRESSOR" of AIR LEVELIZER active test items.
3. While operating test item, check that the suspension air compressor turns ON.

ON : Compressor turns ON
OFF : Compressor turns OFF

Does the suspension air compressor operate properly?
YES - Compressor motor relay and suspension air compressor are operating normally.
NO - Refer to Diagnosis Procedure.