Mazda CX-7 2007 Workshop Manual page 804

STEP
2 INSPECT IF MALFUNCTION OCCURRED
DUE TO IMPROPER SENSOR CLEARANCE.
• Inspect the clearance between the ABS
wheel-speed sensor and the ABS sensor
rotor.
(See 04-15-12 FRONT ABS WHEEL-
SPEED SENSOR INSPECTION.)
(See 04-15-14 REAR ABS WHEEL-SPEED
SENSOR INSPECTION[2WD].)
(See 04-15-14 REAR ABS WHEEL-SPEED
SENSOR INSPECTION[AWD].)
• Is the clearance normal?
Clearance
Front: 0.7— 1.5 mm {0.028— 0.059 in}
Rear: 0.3— 1.1 mm {0.012— 0.043 in}
3 VISUALLY INSPECT ABS SENSOR ROTOR
FOR FOREIGN MATERIAL ADHERING OR
IMPROPER INSTALLATION
• Is the result normal?
4 VERIFY THAT THE SAME DTC IS NOT
PRESENT
• Clear the DTC from the memory.
(See 04-02-3 ON-BOARD DIAGNOSIS.)
• Start the engine and drive the vehicle at 10
km/h {6.2 mph} or more.
• Are the same DTCs present?
5 VERIFY THAT NO OTHER DTCS ARE
PRESENT
• Are any other DTCs output?
End Of Sie
DTC C1233, C1234, C1235, C1236
C1233
C1234
DTC
C1235
C1236
• The vehicle wheel speed of any of the four vehicle wheels is 2.75 km/h {1.71 mph} or less when driving
DETECTION
CONDITION at the specified vehicle speed or more.
• Short to ground in the wiring harness between the following DSC HU/CM terminal and the ABS wheel-
speed sensor terminal:
— DSC HU/CM terminal M— RF ABS wheel-speed sensor terminal A
— DSC HU/CM terminal O— RF ABS wheel-speed sensor terminal B
— DSC HU/CM terminal F— LF ABS wheel-speed sensor terminal A
— DSC HU/CM terminal E— LF ABS wheel-speed sensor terminal B
POSSIBLE
— DSC HU/CM terminal I— RR ABS wheel-speed sensor terminal A
CAUSE
— DSC HU/CM terminal L— RR ABS wheel-speed sensor terminal B
— DSC HU/CM terminal G— LR ABS wheel-speed sensor terminal A
— DSC HU/CM terminal H— LR ABS wheel-speed sensor terminal B
• ABS wheel-speed sensor malfunction
• Poor connection at connectors (female terminal)
04-02–22
ON-BOARD DIAGNOSTIC
INSPECTION
LF ABS wheel-speed sensor (short to ground) system
RF ABS wheel-speed sensor (short to ground) system
RR ABS wheel-speed sensor (short to ground) system
LR ABS wheel-speed sensor (short to ground) system
Yes Go to the next step.
No Replace the ABS wheel-speed sensor, then go to Step 4.
(See 04-15-11 FRONT ABS WHEEL-SPEED SENSOR
REMOVAL/INSTALLATION.)
(See 04-15-13 REAR ABS WHEEL-SPEED SENSOR
REMOVAL/INSTALLATION[2WD].)
(See 04-15-13 REAR ABS WHEEL-SPEED SENSOR
REMOVAL/INSTALLATION[AWD].)
Yes Go to the next step.
No Replace the front drive shaft, rear wheel hub component
(2WD) or rear drive shaft (AWD), then go to the next step.
(See 03-13-12 FRONT DRIVE SHAFT REMOVAL/
INSTALLATION.)
(See 03-12-3 WHEEL HUB COMPONENT REMOVAL/
INSTALLATION[2WD].)
(See 03-13-20 REAR DRIVE SHAFT REMOVAL/
INSTALLATION.)
Yes Repeat the inspection from Step 1.
If the malfunction recurs, replace the DSC HU/CM, then go
to the next step.
(See 04-15-6 DSC HU/CM REMOVAL/INSTALLATION.)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See 04-02-3 ON-BOARD DIAGNOSIS.)
No DTC troubleshooting completed.
ACTION
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