Toyota Corolla (E120): Inspection procedure
1 Inspect transmission wire(s1)
- Disconnect the transmission wire connector from the transaxle.
- measure the resistance according to the value(s) in the table below.
Standard:
2 Check harness and connector(transmission wire – ecm)
- Connect the transmission connector to the transaxle.
- disconnect the connector from the ecm.
- measure the resistance according to the value(s) in the table below.
Standard:
Replace ecm
3 Inspect shift solenoid valve(s1)
- Remove the shift solenoid valve s1.
- measure the resistance according to the value(s) in the table below.
Standard:
- Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (–) battery lead to the solenoid body for checking the solenoid valve operation.
Standard: the solenoid makes an operating noise.
Repair or replace transmission wire
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.
Read freeze frame data using the hand-held tester or the obd ii scan
tool. Freeze frame data records
the engine conditions when a malf ...
Circuit description
Refer to dtc p0120
Dtc no.
Dtc detection condition
Trouble area
P0121
The following condition is met 4 times. After the vehicle speed
has exceeded 19 mph (30 km/h) once, the throttle position
sensor output value is out of normal range when the throttle
...
Inspection procedure
Hint:
read freeze frame data using the hand-held tester or the obd ii scan tool.
Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, it is
useful for determining whether
the vehicle was running or stopped, the engine was warmed up or not, the ...