Toyota Corolla Repair Manual: 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:
- Measure the resistance according to the value(s) in the
table below.
Standard (check for short):
2 Check harness and connector(transmission wire – ecm)
- Connect the transmission wire connector to the transaxle.
- disconnect the ecm connector.
- measure the resistance according to the value(s) in the table below.
Standard:
- Measure the resistance according to the value(s) in the table below.
Standard (check for short):
Replace ecm
3 Inspect shift solenoid valve(slt)
- Remove the shift solenoid valve (slt).
- measure the resistance according to the value(s) in the table below.
Standard:
- Connect the positive (+) battery lead with a 21 w bulb to the terminal 2 of the solenoid valve connector and the negative (–) battery lead to the terminal 1 of the solenoid valve connector for checking the solenoid valve operation.
Standard: the solenoid makes an operating noise.
Repair or replace transmission wire
Circuit 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 and minutely
modul ...
Torque converter clutch solenoid
circuit low/high
Dtc p2769 torque converter clutch solenoid
circuit low (shift solenoid valve sl)
Dtc p2770 torque converter clutch solenoid
circuit high (shift solenoid valve sl) ...
Other materials:
Circuit description
In the diagram below, when the engine is cranked, current flows from terminal
st2 of the ignition switch to
the starter relay coil and also current flows to terminal sta of the ecm (sta
signal).
When the sta signal and ne signal are input to the ecm, tr is turned on, current
flows to the c ...
Cooling
Preparation
Recomended tools
Equipment
Coolant
...
On–vehicle inspection
1. Check fuel pump operation
Connect the hand–held tester to the dlc3.
turn the ignition switch on and hand–held tester main
switch on.
Notice:
do not start the engine.
select the active test mode on the hand–held tester.
please refer to the hand–held tester ope ...