P1810

DTC P1810

DTC Detecting Condition and Trouble Area






Wiring Diagram

Refer to P0741 DTC P0741.

DTC Confirmation Procedure

NOTE:

- Check that the following conditions are satisfied when using this procedure.

- Battery voltage > 10.5 V

1) Turn ignition switch to ON position.

DTC Troubleshooting

1.
Was "CVT System Check" performed?
YES -
Go to Step 2.
NO -
Go to CVT System Check CVT System Check.

2. Lock-up / select switching solenoid valve drive circuit check

Turn off ignition switch and disconnect TCM and solenoid connectors.
Check for proper terminal connection to TCM and solenoid connectors.
If connections are OK, check that lock-up / select switching solenoid valve drive circuit (A1) is as follows.
- Wiring harness of lock-up / select switching solenoid valve drive circuit is less than 1 ohms.
- Insulation resistance of lock-up / select switching solenoid valve drive circuit is infinity between solenoid connector and vehicle body ground.
- Insulation resistance of wire harness is infinity between lock-up / select switching solenoid valve drive circuit terminal and each terminal at solenoid connector.
- Circuit voltage of lock-up / select switching solenoid valve drive circuit 0 - 1 V with ignition switch ON position.

Are they in good condition?
YES -
Go to Step 3.
NO -
Repair or replace defective wire harness.

3. Lock-up / select switching solenoid valve check

Check resistance of lock-up / select switching solenoid valve. Testing and Inspection

Is it in good condition?
YES -
Substitute a known-good TCM and recheck.
NO -
Replace lock-up / select switching solenoid valve (valve body assembly).