P0770

SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, airflow meter and crankshaft position sensor to monitor the engagement condition of the lock-up clutch.
Then the ECM compares the engagement condition of the lock-up clutch with the lock-up schedule in the ECM memory to detect mechanical trouble of the shift solenoid valve SL, valve body and torque converter clutch.




DETECTING CONDITIONS

Step 1:

Step 2:

INSPECTION PROCEDURE