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DTC C1145 (11), C1155 (12), C1165 (13), C1175 (14)

BME040200000W03

  Caution

  • When attaching the tester lead to the ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) or the ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) harness connector, the SST (49 G066 001) must be used. (See ABS HU/CM INSPECTION.) (See ABS/TCS HU/CM INSPECTION.)

DTC | C1145 (11) C1155 (12) C1165 (13) C1175 (14) | RF ABS wheel-speed sensor LF ABS wheel-speed sensor RR ABS wheel-speed sensor LR ABS wheel-speed sensor
DETECTION CONDITION | • C1145 (11), C1155 (12), C1165 (13), C1175 (14): Abnormal input is detected.
POSSIBLE CAUSE | • Open or short to power circuit of ABS wheel-speed sensor(s) circuit • ABS wheel-speed sensor(s) malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN • Turn ignition key to OFF. • Disconnect ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) connector. • Connect SST (adapter harness) to ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) connector (harness side).
• Measure resistance between suspected sensor terminals of SST.

  - RF ABS wheel-speed sensor: G-D
  - LF ABS wheel-speed sensor: E-I
  - 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 next step.
No | Go to Step 3.
2 | INSPECT ABS WHEEL-SPEED SENSOR CIRCUIT FOR SHORT TO POWER • Turn ignition key to ON (engine OFF). • Inspect voltage between suspected sensor terminal(s) of SST (adapter harness) and ground(s).

  - 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 there any B+?
Yes
Repair or replace harness for short to power circuit between ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) 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 ABS wheel-speed sensor, then go to Step 5.
4 | INSPECT ABS/TCS HU/CM (WITH TCS) or ABS HU/CM (WITHOUT TCS) TO ABS WHEEL-SPEED SENSOR CIRCUIT FOR OPEN • Inspect for continuity between suspected sensor terminal(s) of SST and ABS wheel-speed sensor connector. (vehicle harness side)

  - RF ABS wheel-speed sensor (+): G-1
  - RF ABS wheel-speed sensor (-): D-2
  - LF ABS wheel-speed sensor (+): I-1
  - LF ABS wheel-speed sensor (-): E-2
  - RR ABS wheel-speed sensor (+): A-1
  - RR ABS wheel-speed sensor (-): B-2
  - LR ABS wheel-speed sensor (+): C-1
  - LR ABS wheel-speed sensor (-): F-2

• Is there continuity?
Yes
Repair or replace poor connections of ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) connector and/or ABS wheel-speed sensor connector(s), then go to next step.
No | Repair or replace harness for open circuits between ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) 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 Procedure) • Is same DTC present? | Yes | Replace ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS), then go to next step.
No | Go to next step.
6 | VERIFY AFTER REPAIR PROCEDURE • Is there any other DTC present? | Yes | Go to applicable DTC inspection.
No | Troubleshooting completed.