TOR CONV CLUTCH SV

TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT CHECK




DESCRIPTION
The torque converter clutch solenoid valve is activated, with the gear in D4, by the A/T control unit in response to signals sent from the vehicle speed and throttle position sensors. Lock-up piston operation will then be controlled.
Lock-up operation, however, is prohibited when ATF temperature is too low.




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm that the malfunction is eliminated.

WITH CONSULT
1. Start engine.




2. Select "SELF-DIAG RESULTS" mode with CONSULT.
3. Drive vehicle in D1 -> D2 -> D3 -> D4 -> D4 lock-up position.

OR

WITH GST
1. Start engine.




2. Select "MODE 3" with GST.
3. Drive vehicle in D1 -> D2 -> D3 -> D4 -> D4 lock-up position.

OR

WITH NO TOOLS
1. Start engine.




2. Perform self-diagnosis.
3. Drive vehicle in D1 -> D2 -> D3 -> D4 -> D4 lock-up position.




DIAGNOSTIC PROCEDURE