Toyota Corolla Quiz
Diagnostics

Light control switch circuit

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
Wiring diagram
Toyota Corolla. Wiring diagram
Inspection procedure 1 Check headlamp dimmer switch assy (light control switch)
2 Check wire harness (tvip ecu  light control switch)
2 Check wire harness (tvip ecu light control switch)
Toyota Corolla. Check wire harness
  1. Disconnect the tvip ecu and light control switch connectors.
  2. check the continuity between the terminals of the tvip ecu and light control switch connectors, as shown in the illustration and table.

Standard:

3 Check wire harness (light control switch  body ground)
3 Check wire harness (light control switch body ground)
Toyota Corolla. Check wire harness
  1. Disconnect the light control switch connector.
  2. check the continuity between the terminal of the light control switch 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.