DTC C1095, C1096 [ABS/TCS]

id040214805900

Caution
• When attaching the tester lead to the ABS (ABS/TCS) HU/CM harnesses connector the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM INSPECTION.)

DTC

C1095, C1096

Motor relay, pump motor

DETECTION CONDITION

• C1095:
- ABS motor stuck OFF when vehicle is started or during ABS operation, ABS motor ON is commanded.
• C1096:
- ABS motor stuck OFF when vehicle is started or during ABS operation, ABS motor ON is commanded.
- Motor monitor ON signal is not input after specified time when the motor signal is switched from ON to OFF by ABS (ABS/TCS) HU/CM.

POSSIBLE CAUSE

• Open, or short to power or short to ground of motor relay and/or ABS motor in ABS (ABS/TCS) HU/CM
• 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 and/or C1266 has also been 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 6.
3
INSPECT MOTOR RELAY POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Turn ignition key to OFF.
• Disconnect ABS (ABS/TCS) HU/CM connector.
• Connect SST (adapter harness) to ABS (ABS/TCS) HU/CM connector (harness side only).
• Turn ignition key to ON (engine OFF).
• Measure voltage between ABS (ABS/TCS) HU/CM terminal AB (harness side) of SST and ground.
• Is voltage B+?
Yes
Go to next step.
No
Repair or replace harness for open circuit between battery positive terminal and ABS (ABS/TCS) HU/CM terminal AC, then go to Step 6.
4
INSPECT PUMP MOTOR GROUND CIRCUIT FOR OPEN CIRCUIT
• Turn ignition key to OFF.
• Inspect continuity between ABS (ABS/TCS) HU/CM terminal AD (harness side) of SST and ground.
• Is there continuity?
Yes
Go to next step.
No
Repair or replace harness for open circuit between ABS (ABS/TCS) HU/CM terminal AB and ground, then go to Step 6.
5
VERIFY PUMP MOTOR OPERATION
• Turn ignition key to OFF.
• Remove SST (adapter harness) and connect all disconnected connectors.
• Connect WDS or equivalent to DLC-2.
• Turn ignition key to ON (engine OFF).
• Access ABS_POWER and PMP_MOTOR active command modes using WDS or equivalent.
• Does pump motor operate?
Yes
Go to next step.
No
Repair ABS (ABS/TCS) HU/CM, then go to next step.
6
VERIFY TROUBLESHOOTING COMPLETED
• Clear DTC from memory.
• 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 (ABS/TCS) HU/CM, then go to next step.
No
Go to next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
Yes
Go to applicable DTC inspection.
No
Troubleshooting completed.