Mazda CX-9 Grand Touring 2009 Manual page 480

DIAGNOSTIC PROCEDURE
DTC C1145, C1155, C1165, C1175 [DSC/RSC] DIAGNOSTIC PROCEDURE
STEP
INSPECT PID TO VERIFY THAT WHEEL
SPEED-SIGNALS ARE TRANSMITTED
FROM ABS WHEEL-SPEED SENSOR
USING M-MDS
Turn the ignition switch off.
Connect the M-MDS to the DLC-2.
Select the following PIDs using the M-
MDS:
WSPD_LF
1
WSPD_LR
WSPD_RF
WSPD_RR
Drive the vehicle.
Verify that the wheel speed-signals are
transmitted from each ABS wheel-speed
sensor.
Are the wheel-speed signals transmitted?
INSPECT FOR OPEN CIRCUIT IN WIRING
HARNESS BETWEEN DSC/RSC HU/CM
AND ABS WHEEL-SPEED SENSOR
Turn the ignition switch off.
Disconnect the DSC/RSC HU/CM
connector and ABS wheel-speed sensor.
Inspect for continuity in the wiring harness
between the following ABS wheel-speed
2
sensor connectors on the vehicle wiring
harness-side and DSC/RSC HU/CM
connectors.
RF ABS wheel-speed sensor: AE-A
RF ABS wheel-speed sensor: AB-B
LF ABS wheel-speed sensor: AG-A
LF ABS wheel-speed sensor: AD-B
RR ABS wheel-speed sensor: G-A
2008 Mazda CX-9 Grand Touring
2008 BRAKES On-Board Diagnostic (DSC/RSC) - Mazda CX-9
INSPECTION ACTION
Yes Go to Step 4.
No Go to the next step.
Yes Go to the next step.
Repair or replace the wiring harness, then
No
go to the next step.