DTC

C1233

C1234

C1235

C1236

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

DETECTION CONDITION

• The vehicle wheel speed of any of the four vehicle wheels is 2.75 km/h {1.71 mph} or less when driving at the specified vehicle speed or more.

POSSIBLE CAUSE

• 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

• DSC HU/CM terminal I—RR ABS wheel-speed sensor terminal A

• 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)

STEP

INSPECTION

ACTION

1

• 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

• 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.

No

Go to the next step.

2

• Turn the ignition switch off.

• Disconnect the DSC HU/CM connector and the ABS wheel-speed sensor connector.

• Inspect for a short to ground in the wiring harness between the following ABS wheel-speed sensor connectors on the vehicle wiring harness-side and DSC HU/CM connectors.

• RF ABS wheel-speed sensor (+): M—A

• RF ABS wheel-speed sensor (–): O—B

• LF ABS wheel-speed sensor (+): F—A

• LF ABS wheel-speed sensor (–): E—B

• RR ABS wheel-speed sensor (+): I—A

• RR ABS wheel-speed sensor (–): L—B

• LR ABS wheel-speed sensor (+): G—A

• LR ABS wheel-speed sensor (–): H—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.)

(See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)

No

Repair or replace the wiring harness, then go to the next step.

3

• Clear the DTCs from the memory.

  (See ON-BOARD DIAGNOSIS[DYNAMIC STABILITY CONTROL (DSC)].)

• Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more.

• 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.

4

• Are any other DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS[DYNAMIC STABILITY CONTROL (DSC)].)

No

DTC troubleshooting completed.