Vehicle Dynamic Suspension (G2153671): Operation: Diagnostics

The Chassis Control Module (CHCM) can store fault codes which can be retrieved using a Jaguar Land Rover approved diagnostic system. The diagnostics information is obtained via the diagnostic socket which is located below the instrument panel, above the driver's foot pedals.

The diagnostic socket allows the exchange of information between the various control modules on the bus systems and the Jaguar Land Rover approved diagnostic system. This allows the fast retrieval of diagnostic information and programming of certain functions using the Land Rover approved diagnostic system.

Fault Messages 

The air suspension has two methods which it can use to inform the driver of a fault in the air suspension system:

• the air suspension control switch indicators
• the Instrument Cluster (IC) message center.

If the CHCM suffers a major failure and there is no air suspension control, all the control switch indicators will remain unlit.

If a fault occurs and the CHCM can determine the ride height and the vehicle is not above on-road height, a message appears in the message center. If the CHCM cannot determine the ride height, or the vehicle is above normal height and cannot be lowered, a message is displayed and accompanied with a maximum speed message.