P1755

DTC P1755 Linear Solenoid for Lock-up Control Circuit Malfunction (Shift Solenoid Valve SLU)





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