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:
Body
On–vehicle inspection
1. Canada:
tighten bolts and nuts on chassis and body
tighten the bolts and nuts on the chassis parts listed below, if
necessary
Front axle and suspension
drive train
rear axle and suspension
brake system
engine mounting
other chassis parts
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On–vehicle inspection
1. Inspect cooling system for leaks
Caution:
to avoid the danger of being burned, do not remove the radiator
cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
fill the radiator with coolant and attach a radiator cap tester.
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Circuit description
The seat belt buckle switch (lh) circuit consists of the airbag sensor assy
center and front seat inner belt
assy (lh).
Dtc b0126/b0127/27 is recorded when a malfunction is detected in the seat belt
buckle switch (lh) circuit.
Wiring diagram
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