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.

FAIL-SAFE

•  Inhibits ABS, TCS, and DSC controls, and illuminates ABS warning light and DSC indicator light.
(If error is detected during a ABS control, inhibits ABS control after finishing the control.)

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 off. • 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.
1		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. Clearance Front: 0.3—1.0 mm {0.012—0.057 in} Rear: 0.8—1.6 mm {0.032—0.062 in}	Yes	Go to the next step.
2		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.
3		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. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) • Start the engine and drive the vehicle. • Are the same DTCs present? (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)	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.)
4		No	Go to the next step.
5	VERIFY AFTER REPAIR PROCEDURE • Are any other DTCs present? (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
5		No	DTC troubleshooting completed.

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.
FAIL-SAFE		• Inhibits ABS, TCS, and DSC controls, and illuminates ABS warning light and DSC indicator light. (If error is detected during a ABS control, inhibits ABS control after finishing the control.)
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)