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HC12 Checking Wiring Harness (Circuit 430A)



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

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

^ Using a voltmeter, connect positive lead to 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 Toggle functional test is still being conducted. During this functional test 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 over a one minute time period)?

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

NO -- GO to HC13.