Description
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 modulate and generate the line pressure according to the extent that the accelerator pedal is depressed or the output of engine power.
This controls the line pressure and provides smooth shifting characteristics.
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.
Hint:
*: The duty ratio is the ratio of the current on time (a) to the total of the current on and off time (a + b).
Duty ratio (%) = a / (a + b) x 100
Monitor description
In any forward position, when the difference between the revolutions of the turbine and output shaft exceeds the specified value (varies with output speed) determined by the ecm, the ecm illuminates the mil and outputs the dtc. When shift solenoid valve slt remains on, the oil pressure goes down and the clutch engagement force decreases.
Monitor strategy
Typical enabling conditions
The following conditions are common to on malfunctions (a), (b), (c) and (d).
Typical malfunction thresholds
[On malfunction]
Detection condition: total accumulated time of on malfunctions (a), (b), (c) and (d) is 1 second or more
Wiring diagram
Inspection procedure
Hint:
Performing the intelligent tester's active test allows relay, vsv, actuator and other items to be operated without removing any parts. Performing the active test early in troubleshooting is one way to save time.
The data list can be displayed during the active test.
Hint:
*: "Solenoid (slt)" in the active test is performed to check the line pressure changes by connecting sst to the automatic transaxle, which is used in the hydraulic test (see page ax-16) as well. Please note that the pressure values in the active test and hydraulic test are different.
Result
Hint:
If any other codes besides p2714 are output, perform troubleshooting for those dtcs first.
Standard resistance: 5.0 To 5.6 Ùat 20°c (68°f)
Ok: valve moves and makes operating noise.
Ok: there are no foreign objects on each valve.
Ok: the torque converter clutch operates normally.
Repair or replace automatic transaxle assembly
Sliding roof control switch circuit
Description
If either the sliding function or tilt function does not operate, there may
be a malfunction in the sliding roof
control switch circuit.
Wiring diagram
Inspection procedure
Perform active test by intelligent tester (sliding roof operation)
Select the active test, use ...
How to proceed with troubleshooting
Hint:
Use these procedures to troubleshoot the cruise control
system.
*: Use the intelligent tester.
Vehicle brought to workshop
Inspect battery voltage
Standard voltage:
11 to 14 v
If the voltage is below 11 v, recharge or replace the battery
before proceeding.
Che ...
Disposal
Hint:
When scrapping a vehicle equipped with srs or disposing of
the front seat side airbag, be sure to deploy the airbag first in
accordance with the procedure described below. If any
abnormality occurs with the airbag deployment, contact the
service dept. Of toyota motor sales, u.S.A., Inc.
...