Mazda CX-9 Grand Touring 2009 Manual page 514

DSC/RSC RELATED PARTS
1. Make sure that there are no DTCs in the DSC/RSC memory after working on DSC/RSC related parts. If
there are any DTCs in the memory, clear them. (See ON-BOARD DIAGNOSIS [DSC/RSC] .)
DSC/RSC RELATED PART SENSOR INITIALIZATION PROCEDURE
WARNING:
1. When replacing or removing the following parts, perform the initialization procedure. (See DSC/RSC
SENSOR INITIALIZATION PROCEDURE .)
DSC/RSC HU/CM
Combined sensor
2008 Mazda CX-9 Grand Touring
2008 BRAKES General Procedures (Brakes) - Mazda CX-9
If the initialization procedure is not completed, the DSC/RSC will not
operate properly and it might cause an unexpected accident.
Therefore, when replacing or removing the following parts, make
sure to perform the initialization procedure to insure proper RSC
operation.