DTC C1145, C1155, C1165, C1175 [DYNAMIC STABILITY CONTROL]

id0402b2801100

DTC

C1145

C1155

C1165

C1175

RF ABS wheel-speed sensor (open circuit) system

LF ABS wheel-speed sensor (open circuit) system

RR ABS wheel-speed sensor (open circuit) system

LR ABS wheel-speed sensor (open circuit) system

DETECTION CONDITION

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

POSSIBLE CAUSE

• Open circuit 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)

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 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
INSPECT FOR OPEN CIRCUIT IN WIRING HARNESS BETWEEN DSC HU/CM AND ABS WHEEL-SPEED SENSOR
• Turn the ignition switch off.
• Disconnect the DSC 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 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.
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.
• 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.
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 DTC Table.)
No
DTC troubleshooting completed.