IC27 Air Leak Test (Suspension Down)

^ Depress STAR test button so that it remains in the down TEST position.

^ Reconnect air line to air compressor drier assembly and right rear air spring solenoid valve.

^ Reconnect vehicle wiring harness connector to right rear air spring.

^ Take a piece of masking tape and mark a spot on the wheel lip opening. Measure and record vertical height between wheel lip opening and bottom of wheel rim.

^ Wait at least 15 minutes, remeasure and record wheel lip opening again.

^ The second wheel lip opening is:

Approximately the same as the first -- GO to IC28.

Less than first -- GO to IC29.