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 Inspect terminal voltage(od – body ground)
Toyota Corolla. Inspect terminal voltage
  1. Disconnect the cruise control ecu connector.
  2. turn the ignition switch to the on position.
  3. measure the voltage between terminal od of cruise control ecu and body ground.

Standard:

2 Inspect terminal voltage(od1 – body ground)
2 Inspect terminal voltage(od1 – body ground)
Toyota Corolla. Inspect terminal voltage
  1. Measure the voltage between terminal od1 of ecm and body ground.

Standard:

3 Check harness and connector(od1 – body ground)
3 Check harness and connector(od1 – body ground)
Toyota Corolla. Check harness and connector
  1. Disconnect the ecm connector.
  2. measure the resistance according to the value(s) in the table below.

Standard (check for short):

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.