P0770

SYSTEM DESCRIPTION




The ECM uses the signals from the throttle position sensor and Air-flow meter 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 SLU, valve body, torque converter clutch and automatic transmission assembly.




DETECTING CONDITIONS

Step 1:

Step 2:

Step 3:

Step 4:

INSPECTION PROCEDURE