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
6steps
~36min
2/5difficulty
Done 0 of 6
1 Check un–lock warning switch assy
Toyota Corolla. Check un–lock warning switch assy
  1. Disconnect the key unlock warning switch connector.
  2. check the continuity between the terminals of the key unlock warning switch connector, as shown in the illustration and table.

Standard:

2 Check wire harness (tvip ecu unlock warning switch)
2 Check wire harness (tvip ecu unlock warning switch)
Toyota Corolla. Check wire harness
  1. Disconnect the tvip ecu and key unlock warning switch connectors.
  2. check the continuity between the terminals of the tvip ecu connectors and unlock warning switch connector, as shown in the illustration and table.

Standard:

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