P1760 Code - Need Help
- Thread starter Bob R
- Start date
CIRCUIT DESCRIPTION
DTC Detecting Condition
The throttle pressure that is applied to the primary regulator valve (which modulates the line pressure) causes the solenoid valve SLT, under electronic control, to precisely and minutely modulate and generate the line pressure according the extent of the accelerator pedal depressed or the output of engine power.
This reduces the function of the line pressure and provides smooth shifting.
Upon receiving a signal of the throttle valve opening angle, the ECM controls the line pressure by sending a predetermined (*) duty ratio to the solenoid valve, modulating the line pressure and generating throttle pressure.
(*): 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 (%)
Reference:
Check the waveform between terminals SLT+ and SLT- during the engine idling.
Wiring Diagram
Step 1 - 2
Step 3
DTC Detecting Condition
The throttle pressure that is applied to the primary regulator valve (which modulates the line pressure) causes the solenoid valve SLT, under electronic control, to precisely and minutely modulate and generate the line pressure according the extent of the accelerator pedal depressed or the output of engine power.
This reduces the function of the line pressure and provides smooth shifting.
Upon receiving a signal of the throttle valve opening angle, the ECM controls the line pressure by sending a predetermined (*) duty ratio to the solenoid valve, modulating the line pressure and generating throttle pressure.
(*): 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 (%)
Reference:
Check the waveform between terminals SLT+ and SLT- during the engine idling.
Wiring Diagram
Step 1 - 2
Step 3