C1991 FORD – Plant Ride Height Setting And/Or Tests Incomplete

C1991 FORD Possible Symptoms

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C1991 FORD Possible Causes

Calibrate the ride heights

C1991 FORD Description

The Air Suspension Control Module monitors the Plant Ride Height Setting. The Air Suspension Control Module sets the OBDII code when the Plant Ride Height Setting is not to factory specifications.