Toyota Corolla Repair Manual: Key confinement prevention function does not work properly (unlock warning switch circuit)
Circuit description
The unlock warning switch turns on when the key is inserted in the ignition key cylinder and the door courtesy switch turns on when the driver’s door is opened, and the integration relay monitors both switches conditions.
According to these switches conditions, the integration relay controls the door locking operation not to lock the doors while both switches are on, in order to prevent the key from being confined.
Wiring diagram
Inspection procedure
1 Inspect un–lock warning switch assy
- Remove the un–lock warning switch assy.
- inspect the un–lock warning switch assy continuity, as shown in the illustration and table.
Standard:
2 Check wire harness (un–lock warning switch instrument panel j/b)
- Disconnect the un–lock warning switch assy and instrument panel j/b connectors.
- check the continuity between the terminals of the un–lock
warning switch assy and instrument panel j/b connectors,
as shown in the illustration and table.
Standard (check for open):
3 Inspect front door courtesy lamp switch assy (driver’s side)
- Remove the courtesy lamp switch.
- inspect the courtesy lamp switch continuity, as shown in the illustration and table.
Standard:
4 Check wire harness (front door courtesy lamp switch assy [driver’s side] instrument panel j/b)
- Disconnect the courtesy lamp switch and instrument panel j/b connectors.
- check the continuity between the terminals of the courtesy lamp switch and instrument panel j/b connectors, as shown in the illustration and table.
Standard (check for open):
Replace integration relay
Inspection procedure
1 Check door lock
When the door does not operate manually, proceed to ”a”.
when the door does not operate via the key, proceed to ”b”.
2 Inspect door lock control switch
W/ ...
Other materials:
Rear view monitor system precautions
■ Area displayed on screen
The rear view monitor system displays an image of the view from the bumper of
the rear area of the vehicle.
To adjust the image on the rear view monitor system screen.
• The area displayed on the screen may vary according to vehicle orientation
conditions.
• ...
On–vehicle inspection
1. Inspect refrigerant pressure with manifold gauge set
this is a method in witch the trouble is located by using
a manifold gauge set. Read the manifold gauge pressure
when the these conditions are established.
Test conditions:
temperature at the air inlet with the switch set
...
Engine mechanical
Service data
Torque specification
...