BRAKE DISC WEAR PREDICTION (CCB)
There is a brake disc wear prediction algorithm available in the ABS control module to monitor brake
disc duty levels due to driver brake applications. The data is used to calculate the brake disc life
reduction caused by each braking event. The calculated current wear value for each disc can be read
using a Jaguar approved diagnostic system. The wear value can also be reset if new discs are fitted.
For additional information, refer to: Anti-Lock Control - Stability Assist (206-09 Anti-Lock Control -
Stability Assist, Diagnosis and Testing).

When the calculated wear of any brake disc exceeds a predetermined level (3%), the ABS control
module generates a DTC, and sends a message to the IC via the HS CAN powertrain systems bus. The
IC then displays the message 'CERAMIC DISC WORN'. The approved Jaguar diagnostic system must
be used to identify which discs require replacement.

For additional information, refer to: Diagnostic Trouble Code Index - DTC: Anti-Lock Brake System
Control Module (ABS) (100-00 General Information, Description and Operation).

Brake discs wear estimate cannot be determined or reset without access to a Jaguar approved
diagnostic system.

In the event of a brake disc being replaced by a new one, it is imperative that the wear value for that
disc is reset to zero.

Do not move brake discs from one wheel location to another or from one vehicle to another.
In the event of the ABS control module being replaced, unless new brake discs are also fitted it is
imperative that the current wear value of all brake discs is read from the old module and written to
the new module.

If the current wear value of a brake disc cannot be verified from information stored in the ABS control
module, the disc wear level may be calculated by weighing the discs.

For additional information, refer to: Carbon Ceramic Brake Disc Cleaning And Inspection (206-00
Brake System - General Information, General Procedures) /
Anti-Lock Control - Stability Assist (206-09 Anti-Lock Control - Stability Assist, Diagnosis and
Testing).