Mazda CX-9 Grand Touring 2009 Manual page 482

DTC C1242
DTC C1246
DTC C1250
DTC C1254
DTC C1404
DTC C1410
DTC C1957
DTC C1958
DETECTION
CONDITION
POSSIBLE CAUSE
DIAGNOSTIC PROCEDURE
DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254, C1404, C1410, C1957, C1958
[DSC/RSC] DIAGNOSTIC PROCEDURE
STEP
VERIFY DTC INSPECTION
Turn the ignition switch off.
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON
position (engine off).
Clear the DTC from the memory.
1
(See ON-BOARD DIAGNOSTIC
[DSC/RSC].)
Re-perform the DTC inspection.
Is more than one solenoid valve-related
DTC output?
INSPECT DSC/RSC HU/CM POWER
SUPPLY AND GROUND CIRCUIT FOR
OPEN CIRCUIT
2
Measure the voltage between DSC/RSC
HU/CM terminal AL and terminal A.
Is the voltage more than 10 V?
VERIFY DTC TROUBLESHOOTING
COMPLETED
2008 Mazda CX-9 Grand Touring
2008 BRAKES On-Board Diagnostic (DSC/RSC) - Mazda CX-9
LR outlet solenoid valve system
RR outlet solenoid valve system
LR inlet solenoid valve system
RR inlet solenoid valve system
RH traction control solenoid valve system
LH traction control solenoid valve system
RH stability control solenoid valve system
LH stability control solenoid valve system
Solenoid valve operation does not correspond to solenoid ON/OFF
commands from the DSC/RSC HU/CM.
Open or short circuit in the DSC/RSC HU/CM internal solenoid valves
Solenoid valve malfunction
Poor connection at connectors (female terminal)
INSPECTION ACTION
Yes Go to the next step.
Replace the DSC/RSC HU/CM, then go to the
No
(See DSC/RSC HU/CM
REMOVAL/INSTALLATION .)
Replace the DSC/RSC HU/CM, then go to the
next step.
Yes
(See DSC/RSC HU/CM
REMOVAL/INSTALLATION .)
Repair or replace the wiring harness, then go
No
to the next step.
Repeat the inspection from Step 1.
Step 3.