Toyota Corolla (E120): Fail–safe chart
If any of the following codes is recorded, the ecm enters the fail–safe mode.

Check for intermittent problems
Hand–held tester only:
by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent problems.
- Clear the dtcs .
- set the check mode .
- perform a simulation test .
- check the connector and terminal .
- wiggle the harness and connector
Other materials:
Inspection
1. Inspect front seat inner belt assy lh
When fastening the seat belt (buckle switch on).
Inspect the continuity and resistance between the
terminals.
Standard:
If the result is not as specified, replace the inner belt.
When releasing the seat belt (buckle switch ...
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 connec ...
Overhaul
1. Remove control shift lever bush
Remove the control shift lever bush from the selecting
bellcrank assy.
2. Remove selecting bellcrank dust cover no.1
Remove the selecting bellcrank dust cover no.1 From the
selecting bellcrank assy.
3. Remove selecting bell crank no.2
...


