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DTC C1095 (53), C1096 (54)

BME040200000W09

  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 | C1095 (53), C1096 (54) | Motor relay, ABS Motor
DETECTION CONDITION | • C1095 (53): ABS motor stuck OFF when vehicle is started or during ABS operation, ABS motor ON is commanded. • C1096 (54): ABS motor stuck ON when vehicle is started or during ABS operation, ABS motor OFF is commanded.
POSSIBLE CAUSE | • Open, or short power or short to ground of motor relay and/or ABS motor in ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) • Stuck motor relay and/or ABS motor • Open circuit of ABS motor power supply • Open circuit of ABS motor ground

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY OTHER DTC HAS BEEN RECORDED • If any of DTC C1186 (51) and/or C1266 (52) also stored? | Yes | Go to applicable DTC inspection.
No | Go to next step.
2 | INSPECT ABS FUSE CONDITION • Is ABS fuse (60 A) okay? | Yes | Go to next step.
No | Replace fuse, then go to Step 5.
3 | INSPECT MOTOR RELAY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT • 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) with ABS HU/CM disconnected.
• Turn ignition key to ON (engine OFF).
• Measure voltage between ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) terminal AB (harness side) and ground.
• Is voltage B+?
Yes
Go to next step.
No | Repair or replace harness for open circuit between battery positive terminal and ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) terminal AB, then go to Step 5.
4 | INSPECT ABS/TCS HU/CM (WITH TCS) or ABS HU/CM (WITHOUT TCS) GROUND CIRCUIT FOR OPEN CIRCUIT • Turn ignition key to OFF. • Inspect continuity between ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) terminal AD of SST and ground. • Is there continuity? | Yes | Go to next step.
No | Repair or replace harness for open circuit between ABS/TCS HU/CM (with TCS) or ABS HU/CM (without TCS) terminal AD and ground, then go to next step.
5 | VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnected all disconnected connectors. • Clear DTC from memory. (See Clearing DTCs Procedure) • Start engine and drive vehicle at 10 km/h {6.2 mph} or above.
• Gradually slow down and stop vehicle.
• 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.