Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

The throttle pressure that is applied to the primary regulator

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 controls 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 noncontinuity, then duty ratio=a/(a+b) x 100 (%)

Monitor description

Monitor description

The linear solenoid valve (slt) controls the transmission line pressure for smooth transmission operation based on signals from the throttle position sensor and the vehicle speed sensor. The ecm adjusts the duty cycle of the slt solenoid valve to control hydraulic line pressure coming from the primary regulator valve.

Appropriate line pressure assures smooth shifting with varying engine outputs. When an open or short in the linear solenoid valve (slt) circuit is detected, the ecm interprets this as a fault. The ecm will turn on the mil.

Monitor strategy

Typical enabling condition

Typical enabling condition

Typical malfunction thresholds

Typical malfunction thresholds

Component operating range

Component operating range

Wiring diagram

Wiring diagram

Inspection procedure

Pressure control solenoid d electrical (shift solenoid slt)
Dtc p2716 pressure control solenoid d electrical (shift solenoid slt) ...

Inspection procedure
1 Inspect transmission wire(slt) Disconnect the transmission wire connector from the transaxle. measure the resistance according to the value(s) in the table below. Standard: Me ...

Other materials:

Inspection procedure
Hint: if different dtcs related to different systems that have terminal e2 as the ground terminal are output simultaneously, terminal e2 may be open. If dtc p0441 (purge flow), p0446 (vsv for ccv), p0451, p0452 or p0453 (evaporative pressure sensor) is output with dtc p0442 or p0456, ...

Heater & air conditioner
Preparation Sst Recomended tools Equipment Lubricant ...

For vehicles equipped with catalytic converter
Caution: if large amount of unburned fuel flows into the converter, it may cause overheating and a fire hazard. To prevent this, observe the following precautions. Use only unleaded gasoline.  avoid prolonged idling. Avoid running the engine at idle speed for more than 20 minutes. ...

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