Toyota Corolla (E120): Circuit description
The door key lock and unlock switch is built in the door lock motor.
Wiring diagram

Inspection procedure
1 Check door lock


2 Check wire harness (tvip ecu door lock)

- Disconnect the tvip ecu and door lock connectors.
- check the continuity between the terminals of the tvip ecu and door lock connectors, as shown in the illustration and table.
Standard:



3 Check wire harness (door lock body ground)

- Disconnect the door lock connector.
- check the continuity between the terminal of the door lock connector and the body ground, as shown in the illustration and table.
Standard:



Proceed to next circuit inspection shown on problem symptoms table
Other materials:
Definition of terms
Term
Definition
Monitor description
Description of what the ecm monitors and how it detects malfunction
(monitoring purpose and its details).
Related dtcs
Diagnostic code
Typical enabling condition
Preconditions that allow the ecm to detect m ...
Timing gear cover oil seal
Replacement
1. Remove engine under cover rh
2. Remove front wheel rh
3. Remove fan and generator v belt
Turn the v–ribbed belt tensioner slowly clockwise and
loosen it. Then, remove the fan and generator belt v and
put back the v–ribbed belt tensioner little by little and fix
it ...
Alarm
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
A locked door or trunk is
unlocked or opened in any
way other than using the
entry function (if equipped),
wireless remote control,
mechani ...


