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:
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 de ...
Basic inspection
Resistance measuring condition of electronic parts
unless stated, all resistance is measured at an ambient
temperature of 20 c (68 °F). As the resistance
may be outside the specifications if measured at high temperatures
immediately after
the vehicle has been running, measu ...
Inspection procedure
1 Prepare for inspection
Disconnect the negative (–) terminal cable from the battery, and wait at
least for 90 seconds.
remove the horn button assy .
disconnect the connector of the instrument panel passenger airbag assy
.
disconnect the connector of the front sea ...