IC18 Checking Wiring Harness (Circuit 430A)

^ The air suspension control module cannot activate the right rear air spring solenoid valve. In order to determian the cause of this, the following actions are required:

^ Electrically disconnect right rear air spring solenoid from vehicle wiring harness connector.

^ Using a voltmeter, connect positive lead to the air spring solenoid valve wiring harness connector Circuit 416 and negative lead to Circuit 430A of the same connector.

NOTE: The Air Spring Solenoid Valve Cycle functional test is still being conducted. During this functional test, the front ride height of vehicle may lower and rear ride height may raise.

^ Does voltage reading pulse between zero and battery voltage (check is to be made ever a one minute time period)?

YES -- INSTALL a new right rear air spring solenoid and then REPEAT Service Bay Diagnostics. Reading and Clearing Diagnostic Trouble Codes

NO -- GO to IC19.