DTC C1095 [ABS]

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DTC C1095 [ABS]

B3E040243000W05

DTC | C1095 | Pump motor, motor relay
DETECTION CONDITION | • ABS motor monitor signal does not correspond to ABS HU/CM OFF signal. • ABS motor monitor signal does not correspond to ABS HU/CM ON signal. • ABS motor monitor OFF signal is input within specified time limit when motor signal is switched from ON to OFF by ABS HU/CM.

POSSIBLE CAUSE

• ABS 1 (30 A) fuse malfunction
• Open circuit or short to ground in the wiring harness between the battery and ABS HU/CM terminal Z
• Open circuit in the wiring harness between ABS HU/CM terminal B and body ground
• Open or short circuit in ABS HU/CM internal motor relay, or stuck motor relay
• Open or short circuit in ABS HU/CM internal pump motor, or frozen pump motor
• Poor connection at connectors (female terminal)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT ABS FUSE CONDITION • Is the ABS fuse (ABS 1 30 A) normal? | Yes | Go to the next step.
No | Replace the ABS fuse, then go to Step 6.

2

VERIFY PUMP MOTOR OPERATION
• Turn the ignition switch off.
• Connect the WDS or equivalent to the DLC-2.
• Turn the ignition switch to the ON position.
• Access PMP _MOTOR active command modes using the WDS or equivalent.
• Does the pump motor operate?

Yes

Go to the next step.

No | Replace the ABS HU/CM, then go to Step 6. (See ABS HU/CM REMOVAL/INSTALLATION.)
3 | INSPECT MOTOR RELAY POWER SUPPLY FOR OPEN CIRCUIT • Turn the ignition switch off. • Disconnect the ABS HU/CM connector. • Inspect for continuity between ABS HU/CM terminal Z and the positive battery terminal. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 6.
4 | INSPECT MOTOR RELAY POWER SUPPLY FOR SHORT CIRCUIT • Inspect for continuity between ABS HU/CM terminal Z and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 6.
No | Go to the next step.
5 | INSPECT PUMP MOTOR GROUND FOR OPEN CIRCUIT • Inspect for continuity between ABS HU/CM terminal B and body ground. • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to the next step.

6

VERIFY THAT THE SAME DTC IS NOT PRESENT
• Reconnect all disconnected connectors.
• Clear the DTCs from the memory.
(See Clearing DTCs Procedures.)
• Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more.
• Are the same DTCs present?

Yes

Repeat the inspection from Step 1.
If the malfunction recurs, replace the ABS HU/CM, then go to the next step.
(See ABS HU/CM REMOVAL/INSTALLATION.)

No | Go to the next step.
7 | 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.