DTC C1145, C1155, C1165, C1175

id040200801100

DTC

C1145

C1155

C1165

C1175

RF ABS wheel-speed sensor system

LF ABS wheel-speed sensor system

RR ABS wheel-speed sensor system

LR ABS wheel-speed sensor system

DETECTION CONDITION

•  Open circuit or short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.

POSSIBLE CAUSE

•  Open circuit or short to ground in the wiring harness between the following ABS HU/CM terminal and the ABS wheel-speed sensor terminal:

―  ABS HU/CM terminal O—RF ABS wheel-speed sensor terminal A

―  ABS HU/CM terminal M—RF ABS wheel-speed sensor terminal B

―  ABS HU/CM terminal E—LF ABS wheel-speed sensor terminal A

―  ABS HU/CM terminal F—LF ABS wheel-speed sensor terminal B

―  ABS HU/CM terminal L—RR ABS wheel-speed sensor terminal A

―  ABS HU/CM terminal K—RR ABS wheel-speed sensor terminal B

―  ABS HU/CM terminal I—LR ABS wheel-speed sensor terminal A

―  ABS HU/CM terminal G—LR ABS wheel-speed sensor terminal B

•  ABS wheel-speed sensor malfunction

•  Poor connection at connectors (female terminal)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT PID TO VERIFY THAT WHEEL SPEED-SIGNALS ARE TRANSMITTED FROM ABS WHEEL- SPEED SENSOR USING M-MDS • Turn the ignition switch or engine switch off. • Connect the M-MDS to the DLC-2. • Select the following PIDs using the M-MDS: WSPD_LF 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?	Yes	Go to Step 3.
1		No	Go to the next step.
2	INSPECT FOR OPEN CIRCUIT IN WIRING HARNESS BETWEEN ABS HU/CM AND ABS WHEEL-SPEED SENSOR • Turn the ignition switch or engine switch off. • Disconnect the ABS HU/CM connector and ABS wheel-speed sensor. • Inspect for continuity in the wiring harness between the following ABS wheel-speed sensor connectors on the vehicle wiring harness-side and ABS HU/CM connectors. ― RF ABS wheel-speed sensor (+): O—A ― RF ABS wheel-speed sensor (–): M—B ― LF ABS wheel-speed sensor (+): E—A ― LF ABS wheel-speed sensor (–): F—B ― RR ABS wheel-speed sensor (+): L—A ― RR ABS wheel-speed sensor (–): K—B ― LR ABS wheel-speed sensor (+): I—A ― LR ABS wheel-speed sensor (–): G—B • Is there continuity?	Yes	Replace the ABS wheel-speed sensor, then go to the next step. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [4X2 (EXCEPT HIGH CLEARANCE MODEL)].) (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [4x2 (HIGH CLEARANCE MODEL), 4X4].) (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [4X2 (EXCEPT HIGH CLEARANCE MODEL)].) (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [4x2 (HIGH CLEARANCE MODEL), 4X4].)
2		No	Repair or replace the wiring harness, then go to the next step.
3	VERIFY THAT THE SAME DTC IS NOT PRESENT • Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS.) • Start the engine and drive the vehicle at 12 km/h {7.5 mph} or more. • Are the same DTCs present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the ABS HU/CM, then go to the next step. (See ABS HU/CM REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCS ARE PRESENT • Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS.)
4		No	DTC troubleshooting completed.

DTC	C1145 C1155 C1165 C1175		RF ABS wheel-speed sensor system LF ABS wheel-speed sensor system RR ABS wheel-speed sensor system LR ABS wheel-speed sensor system
DETECTION CONDITION		• Open circuit or short to ground has been detected in the ABS wheel-speed sensor wiring harness on any of the four vehicle wheels.
POSSIBLE CAUSE		• Open circuit or short to ground in the wiring harness between the following ABS HU/CM terminal and the ABS wheel-speed sensor terminal: ― ABS HU/CM terminal O—RF ABS wheel-speed sensor terminal A ― ABS HU/CM terminal M—RF ABS wheel-speed sensor terminal B ― ABS HU/CM terminal E—LF ABS wheel-speed sensor terminal A ― ABS HU/CM terminal F—LF ABS wheel-speed sensor terminal B ― ABS HU/CM terminal L—RR ABS wheel-speed sensor terminal A ― ABS HU/CM terminal K—RR ABS wheel-speed sensor terminal B ― ABS HU/CM terminal I—LR ABS wheel-speed sensor terminal A ― ABS HU/CM terminal G—LR ABS wheel-speed sensor terminal B • ABS wheel-speed sensor malfunction • Poor connection at connectors (female terminal)