DTC C1141, C1142, C1143, C1144, C1233, C1234, C1235, C1236 [DSC]
B3E040243000W18
- • When only the driving wheels are rotated while the vehicle is jacked up, DTCs C1235 and C1236 are input to the memory.
Diagnostic procedure
STEP
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INSPECTION
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ACTION
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1
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INSPECT PID FOR ABS WHEEL-SPEED SENSOR OUTPUT ERROR USING WDS OR EQUIVALENT
• Turn the ignition switch off.
• Connect the WDS or equivalent to the DLC-2.
• Select the following PIDs using the WDS or equivalent:
LF_WSPD
LR_WSPD
RF_WSPD
RR_WSPD
• Drive the vehicle.
• Verify that the vehicle speeds detected by the four ABS wheel-speed sensors are approximately the same.
• Are the vehicle speeds approximately the same?
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Yes
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Go to Step 3.
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No
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Go to the next step.
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2
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INSPECT ABS WHEEL-SPEED SENSOR CONNECTOR FOR SHORT TO GROUND
• Disconnect the ABS wheel-speed sensor connectors.
• Verify that there is no continuity between the following ABS wheel-speed sensor terminals (vehicle harness-side) and body ground.
• Is the continuity normal?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness, then go to Step 6.
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3
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INSPECT IF MALFUNCTION OCCURRED DUE TO IMPROPER SENSOR CLEARANCE.
• Inspect the clearance between the ABS wheel-speed sensor and the ABS sensor rotor.
• Is the clearance normal?
Clearance Front: 2.1 mm {0.082 in} or less Rear: 1.46 mm {0.057 in} or less |
Yes
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Go to the next step.
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No
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Replace the ABS wheel-speed sensor, then go to Step 6.
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4
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VISUALLY INSPECT ABS SENSOR ROTOR FOR FOREIGN MATERIAL ADHERING OR IMPROPER INSTALLATION
• Is the result normal?
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Yes
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Go to Step 6.
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No
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Replace the wheel hub component, then go to Step 6.
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5
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INSPECT IF MALFUNCTION OCCURRED DUE TO INTERNAL MALFUNCTION OF HYDRAULIC UNIT (CLOGGING IN PIPING)
• Perform the DSC system operation inspection.
(See DSC SYSTEM INSPECTION.)
• Is the system normal?
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Yes
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Go to the next step.
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No
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Replace the DSC HU/CM, then go to the next step.
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6
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Clear the DTCs from the memory.
(See Clearing DTCs Procedures.)
• Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more.
• Are the same DTCs present?
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Yes
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Repeat the inspection from Step 1.
If the malfunction recurs, replace the DSC HU/CM.
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No
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Go to the next step.
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7
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VERIFY THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
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Yes
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Go to the applicable DTC inspection.
(See DTC Table.)
|
No
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DTC troubleshooting completed.
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