P1755

CIRCUIT DESCRIPTION
The amount of current flow to the solenoid is controlled by the




(*) duty ratio of the ECM output signal. The higher the duty ratio becomes, the higher the lock-up hydraulic pressure becomes during the lock-up operation.




(*) Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity in one cycle, and B is the period of non-continuity, then

(*)Duty Ratio = (A/(A+B)) X 100(%)




DETECTING CONDITIONS

HINT:




- Refer to the chart for the wave form between terminals SLU+ and SLU- when lock-up function is not operating.




- Refer to the chart for the wave form between terminals SLU+ and SLU- when lock-up function is operating




WIRING DIAGRAM

Step 1:

Step 2:

INSPECTION PROCEDURE