System Fault Message

WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

If a fault is detected by the SUM, a message is sent via the High Speed (HS) Controller Area Network (CAN) to the Instrument Cluster (IC) and the message 'ADAPTIVE DAMPING FAULT' is displayed. The SUM also logs an appropriate Diagnostic Trouble Code (DTC). The SUM can be interrogated using an approved diagnostic system.

When a fault is detected, the SUM implements a strategy based on the type of fault. If there is an electrical power fault, or the SUM cannot control the shock absorbers, they default to the firm condition. If a sensor fails that only affects one or more control modes then an intermediate damper setting is used as the lower threshold and the remaining working modes can demand higher damping as required. In the event of a HS CAN bus fault, the shock absorbers are fixed at an intermediate setting (no control) or default to the firm condition, depending on the severity of the fault.