#
DTC C1145, C1155, C1165, C1175 [DSC]

id040220801100

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 DSC HU/CM terminal and ABS wheel-speed sensor(s) terminal below - DSC HU/CM terminal M-RF ABS wheel-speed sensor terminal A - DSC HU/CM terminal I-RF ABS wheel-speed sensor terminal B - DSC HU/CM terminal F-LF ABS wheel-speed sensor terminal A - DSC HU/CM terminal J-LF ABS wheel-speed sensor terminal B - DSC HU/CM terminal K-RR ABS wheel-speed sensor terminal A - DSC HU/CM terminal H-RR ABS wheel-speed sensor terminal B - DSC HU/CM terminal Q-LR ABS wheel-speed sensor terminal A - DSC HU/CM terminal N-LR ABS wheel-speed sensor terminal B • Malfunction of ABS wheel-speed sensor(s)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT • Turn ignition key to OFF. • Disconnect DSC HU/CM connector. • Measure resistance between suspected sensor terminals of DSC HU/CM connector (harness side). - RF ABS wheel-speed sensor: M-I - LF ABS wheel-speed sensor: F-J - RR ABS wheel-speed sensor: K-H - LR ABS wheel-speed sensor: Q-N • Is resistance within 1.3-1.7 kilohm? | Yes | Go to next step.
No | Go to Step 3.
2 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR SHORT TO GROUND • Turn ignition key to OFF. • Inspect continuity between suspected sensor terminal(s) of DSC HU/CM connector (harness side) and ground(s). - RF ABS wheel-speed sensor (+): M - RF ABS wheel-speed sensor (-): I - LF ABS wheel-speed sensor (+): F - LF ABS wheel-speed sensor (-): J - RR ABS wheel-speed sensor (+): K - RR ABS wheel-speed sensor (-): H - LR ABS wheel-speed sensor (+): Q - LR ABS wheel-speed sensor (-): N • Is there continuity? | Yes | Repair or replace harness for short to ground circuit between DSC 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 ignition key to 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 next step.
No | Replace wheel-speed sensor, then go to Step 5.
4 | INSPECT DSC HU/CM TO ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN CIRCUIT • Inspect continuity between suspected sensor terminal(s) of DSC HU/CM connector (harness side) and ABS wheel-speed sensor connector. (vehicle harness side) - RF ABS wheel-speed sensor (+): M-A - RF ABS wheel-speed sensor (-): I-B - LF ABS wheel-speed sensor (+): F-A - LF ABS wheel-speed sensor (-): J-B - RR ABS wheel-speed sensor (+): K-A - RR ABS wheel-speed sensor (-): H-B - LR ABS wheel-speed sensor (+): Q-A - LR ABS wheel-speed sensor (-): N-B • Is there continuity? | Yes | Repair or replace poor connections of DSC 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 DSC HU/CM and ABS wheel-speed sensor(s), then go to next step.
5 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect all disconnected connectors. • Clear DTC from memory (See Clearing DTCs Procedures.) • Is the same DTC present? | Yes | Replace DSC HU/CM, then go to next step.
No | Go to next step.
6 | 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.