DTC C1148, C1158, C1168, C1178 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2801200

DTC
C1148
C1158
C1168
C1178
RF ABS wheel-speed sensor/ABS sensor rotor system
LF ABS wheel-speed sensor/ABS sensor rotor system
RR ABS wheel-speed sensor/ABS sensor rotor system
LR ABS wheel-speed sensor/ABS sensor rotor system
DETECTION CONDITION
•  Noise is continuously detected in wheel-speed signal for 10 s.
POSSIBLE CAUSE
•  ABS wheel-speed sensor malfunction (low output, metal shavings on sensor)
•  ABS sensor rotor malfunction (chipping of sensor rotor teeth)
•  Poor installation of ABS wheel-speed sensor and/or sensor rotor
•  Excessive clearance between the ABS wheel-speed sensor and sensor rotor
•  Poor connection at connectors (female terminal)

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT PID FOR ABNORMAL OUTPUT FROM ABS WHEEL-SPEED SENSOR USING M-MDS
•  Turn the ignition switch to the LOCK position.
•  Connect the M-MDS to the DLC-2.
•  Select the following PIDs using the M-MDS:
―  LF_WSPD
―  LR_WSPD
―  RF_WSPD
―  RR_WSPD
•  Start the engine and drive the vehicle.
•  Verify that the PIDs of the four ABS wheel-speed sensors correspond approximately.
•  Do the vehicle speeds correspond?
Yes
Go to Step 4.
No
Go to the next 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.
•  Is the clearance normal?
Yes
Go to the next step.
No
Replace the rear ABS wheel-speed sensor, then go to Step 4.
(See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)
(See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)
3
VISUALLY INSPECT ABS SENSOR ROTOR FOR FOREIGN MATERIAL ADHERING OR IMPROPER INSTALLATION
•  Is the result normal?
Yes
Go to the next step.
No
Replace the front wheel hub component or rear drive shaft, then go to the next step.
(See WHEEL HUB, STEERING KNUCKLE REMOVAL/INSTALLATION.)
(See REAR DRIVE SHAFT REMOVAL/INSTALLATION.)
4
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the memory.
•  Start the engine and drive the vehicle.
•  Are the same DTCs present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION.)
No
Go to the next step.
5
VERIFY AFTER REPAIR PROCEDURE
•  Are any other DTCs present?
Yes
Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
No
DTC troubleshooting completed.