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DTC C1145, C1155, C1165, C1175 [ABS (ABS/TCS)]

id040214801100

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 circuit or short to ground in harness between ABS (ABS/TCS) HU/CM terminal and ABS wheel-speed sensor (s) terminals indicated below: - ABS (ABS/TCS) HU/CM terminal G-RF ABS wheel-speed sensor terminal A - ABS (ABS/TCS) HU/CM terminal D-RF ABS wheel-speed sensor terminal B - ABS (ABS/TCS) HU/CM terminal I-LF ABS wheel-speed sensor terminal A - ABS (ABS/TCS) HU/CM terminal E-LF ABS wheel-speed sensor terminal B - ABS (ABS/TCS) HU/CM terminal A-RR ABS wheel-speed sensor terminal A - ABS (ABS/TCS) HU/CM terminal B-RR ABS wheel-speed sensor terminal B - ABS (ABS/TCS) HU/CM terminal C-LR ABS wheel-speed sensor terminal A - ABS (ABS/TCS) HU/CM terminal F-LR ABS wheel-speed sensor terminal B • ABS wheel-speed sensor (s) malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT • Turn the ignition switch off. • Disconnect ABS (ABS/TCS) HU/CM connector. • Measure resistance between suspected sensor terminals of ABS (ABS/TCS) HU/CM connector (harness-side). - RF ABS wheel-speed sensor: G-D - LF ABS wheel-speed sensor: I-E - RR ABS wheel-speed sensor: A-B - LR ABS wheel-speed sensor: C-F • Is resistance within 1.3-1.7 kilohm? | Yes | Go to the next step.
No | Go to Step 3.
2 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch off. • Inspect continuity between suspected sensor terminal (s) of ABS (ABS/TCS) HU/CM connector (harness-side) and ground (s). - RF ABS wheel-speed sensor (+): G - RF ABS wheel-speed sensor (-): D - LF ABS wheel-speed sensor (+): I - LF ABS wheel-speed sensor (-): E - RR ABS wheel-speed sensor (+): A - RR ABS wheel-speed sensor (-): B - LR ABS wheel-speed sensor (+): C - LR ABS wheel-speed sensor (-): F • Is there continuity? | Yes | Repair or replace harness for short to ground circuit between ABS (ABS/TCS) HU/CM and ABS wheel-speed sensor (s), then go to Step 5.
No | Go to Step 5.
3 | INSPECT ABS WHEEL-SPEED SENSOR • Turn the ignition switch off. • Disconnect suspected sensor connector (s) and inspect resistance between sensor terminals (part side). • Is resistance within 1.3-1.7 kilohm? | Yes | Go to the next step.
No | Replace ABS wheel-speed sensor, then go to Step 5.
4 | INSPECT ABS (ABS/TCS) HU/CM TO ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT • Inspect continuity between suspected sensor terminal (s) of ABS (ABS/TCS) HU/CM connector (harness-side) and ABS wheel-speed sensor connector. (vehicle harness-side) - RF ABS wheel-speed sensor (+): G-A - RF ABS wheel-speed sensor (-): D-B - LF ABS wheel-speed sensor (+): I-A - LF ABS wheel-speed sensor (-): E-B - RR ABS wheel-speed sensor (+): A-A - RR ABS wheel-speed sensor (-): B-B - LR ABS wheel-speed sensor (+): C-A - LR ABS wheel-speed sensor (-): F-B • Is there continuity? | Yes | Repair or replace poor connections of ABS (ABS/TCS) HU/CM connector and/or ABS wheel-speed sensor connector (s), then go to the next step.
No | Repair or replace harness for open circuits between ABS (ABS/TCS) HU/CM and ABS wheel-speed sensor (s), then go to the next step.
5 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear the DTC from the memory (See Clearing DTCs Procedures.) • Is same DTC present? | Yes | Replace ABS (ABS/TCS) HU/CM, then go to the next step.
No | Go to the next step.
6 | VERIFY AFTER REPAIR PROCEDURE • Is there any other DTC present? | Yes | Go to the applicable DTC inspection. (See DTC Table.)
No | Troubleshooting completed.