DTC Detection Logic

MALFUNCTION DETECTED CONDITION AND POSSIBLE CAUSE

DTC	Display item	Malfunction detected condition	Possible cause
C1804	VHCL HEIGHT ADJ UP	The vehicle height is 15 mm (0.59 in) or more lower than the reference height despite the output of air compressor ON signal continuously for 120 seconds by the air levelizer control module.	Harness or connector Air compressor Air compressor relay Air levelizer control module Rear shock absorber (air chamber) Vehicle height sensor Air tube Rear suspension component parts Overloaded