Toyota Corolla Quiz
Diagnostics

Inspection procedure

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
1 Check hazard warning signal switch assy
Toyota Corolla. Check hazard warning signal switch assy
  1. Check the hazard warning switch continuity, as shown in the illustration and table.

Standard:

2 Check turn signal flasher assy
2 Check turn signal flasher assy
3 Check wire harness (tvip ecu turn signal flasher)
3 Check wire harness (tvip ecu turn signal flasher)
Toyota Corolla. Check wire harness
  1. Disconnect the tvip ecu and turn signal flasher connectors.
  2. check the continuity between the terminals of the tvip ecu and turn signal flasher connectors, as shown in the illustration and table.

Standard:

4 Check wire harness (hazard warning switch  body ground)
4 Check wire harness (hazard warning switch body ground)
Toyota Corolla. Check wire harness
  1. Disconnect the hazard warning switch connector.
  2. check the continuity between the terminal of the hazard warning switch connector and the body ground, as shown in the illustration and table.

Standard:

Check and replace tvip ecu
Check and replace tvip ecu

Test yourself

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