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
5steps
~30min
2/5difficulty
Done 0 of 5
1 Check operation(stop lamp swtich assy)
  1. Check that the stop light comes on when the brake pedal is depressed, and turns off when the brake pedal is released.
2 Input signal check
2 Input signal check
Toyota Corolla. Input signal check
  1. See input signal check on page 05–745.
  2. check the indicator light when the brake pedal is depressed.

    Ok: the indicator light goes off when the brake pedal is depressed.

    3 Inspect terminal voltage(stp–)
3 Inspect terminal voltage(stp–)
Toyota Corolla. Inspect terminal voltage
  1. Remove the cruise control ecu assy with connectors still connected.
  2. turn the ignition switch to on.
  3. measure voltage between terminal 3 (stp–) of cruise control ecu assy connector and body ground, when the brake pedal is depressed and released.

    Ok:

    4 Check harness and connector(between cruise control ecu assy
4 Check harness and connector(between cruise control ecu assy and stop lamp switch assy)
  1. Check for open and short circuit in harness and connector between cruise control ecu assy and stop lamp switch assy
Check and replace cruise control ecu assy
Check and replace cruise control ecu assy

Test yourself

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