Toyota Corolla Quiz
Diagnostics

Circuit description

In this manual: Diagnostics
Introduction — 31Preparation — 32Service specifications — 19Diagnostics — 497Engine control system — 6Fuel — 13Emission control — 28Exhaust — 3Cooling — 13Lubrication — 7Ignition — 3Starting & charging — 13Front suspension — 12Rear suspension — 9Tire & wheel — 1Drive shaft / propeller shaft — 15Brake — 42Automatic transmission / trans — 47Clutch — 19Steering column — 9Power steering — 11Heater & air conditioner — 20Supplemental restraint system — 27Seat belt — 12Lighting — 18Wiper & washer — 9Audio & visual — 12Wiring — 1Communication system — 1Windshield/windowglass/mirror — 31Seat — 10Theft deterrent & door lock — 10Sliding roof/convertible — 8Engine hood/door — 12Exterior/interior trim — 20Vehicle control system — 1Cruise control — 5Maintenance — 8
4steps
~24min
2/5difficulty
Done 0 of 4

The door key lock and unlock switch is built in the door lock motor.

Wiring diagram
Toyota Corolla. Wiring diagram
Inspection procedure 1 Check door lock
2 Check wire harness (tvip ecu  door lock)
2 Check wire harness (tvip ecu door lock)
Toyota Corolla. Check wire harness
  1. Disconnect the tvip ecu and door lock connectors.
  2. 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)
3 Check wire harness (door lock body ground)
Toyota Corolla. Check wire harness
  1. Disconnect the door lock connector.
  2. 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
Proceed to next circuit inspection shown on problem symptoms table

Test yourself

A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.