DTC C1145, C1155, C1165, C1175 [APPLIED VIN (ASSUMED): JM0 DY10Y100 100001-108401, JM6 DY10*100 100001-109000]

id0402a3801100

DTC

C1145

C1155

C1165

C1175

RF ABS wheel-speed sensor

LF ABS wheel-speed sensor

RR ABS wheel-speed sensor

LR ABS wheel-speed sensor

DETECTION CONDITION

• Abnormal input is detected.

POSSIBLE CAUSE

• Open or short to ground circuit in harness between ABS HU/CM terminal and ABS wheel-speed sensor(s) terminal below
- ABS HU/CM terminal AO-RF ABS wheel-speed sensor terminal B
- ABS HU/CM terminal AR-RF ABS wheel-speed sensor terminal A
- ABS HU/CM terminal H-LF ABS wheel-speed sensor terminal B
- ABS HU/CM terminal E-LF ABS wheel-speed sensor terminal A
- ABS HU/CM terminal N-RR ABS wheel-speed sensor terminal A
- ABS HU/CM terminal Q-RR ABS wheel-speed sensor terminal C
- ABS HU/CM terminal AI-LR ABS wheel-speed sensor terminal B
- ABS HU/CM terminal AF-LR ABS wheel-speed sensor terminal D
• ABS wheel-speed sensor(s) malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR SHORT TO GROUND
• Turn ignition key to OFF.
• Inspect continuity between suspected sensor terminal(s) of ABS HU/CM connector (harness side) and ground(s).
- RF ABS wheel-speed sensor (+): AO
- RF ABS wheel-speed sensor (-): AR
- LF ABS wheel-speed sensor (+): H
- LF ABS wheel-speed sensor (-): E
- RR ABS wheel-speed sensor (+): N
- RR ABS wheel-speed sensor (-): Q
- LR ABS wheel-speed sensor (+): AI
- LR ABS wheel-speed sensor (-): AF
• Is there continuity?
Yes
Repair or replace harness for short to ground circuit between ABS HU/CM and ABS wheel-speed sensor(s), then go to Step 3.
No
Go to next step.
2
INSPECT ABS HU/CM TO ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT
• Inspect continuity between suspected sensor terminal(s) of ABS HU/CM connector (harness side) and ABS wheel-speed sensor connector. (vehicle harness side)
- RF ABS wheel-speed sensor (+): AO-B
- RF ABS wheel-speed sensor (-): AR-A
- LF ABS wheel-speed sensor (+): H-B
- LF ABS wheel-speed sensor (-): E-A
- RR ABS wheel-speed sensor (+): N-A
- RR ABS wheel-speed sensor (-): Q-C
- LR ABS wheel-speed sensor (+): AI-B
- LR ABS wheel-speed sensor (-): AF-D
• Is there continuity?
Yes
Repair or replace poor connections of ABS HU/CM connector and/or ABS wheel-speed sensor connector(s), then go to next step.
No
Repair or replace harness for open circuits between ABS HU/CM and ABS wheel-speed sensor(s), then go to next step.
3
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear DTC from memory
• Is same DTC present?
Yes
Replace ABS CM, then go to next step.
No
Go to next step.
4
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.