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
34steps
~204min
4/5difficulty
Done 0 of 34
Hint

:
  • this dtc chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table on page 05–42.
  • Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air–fuel ratio was lean or rich, etc. At the time of the malfunction.
Hand–held tester 1 Read value of hand–held tester(starter signal)
  1. Connect the hand–held tester or obd ii scan tool to the dlc3.
  2. turn the ignition switch on and push the hand–held tester main switch on.
  3. select the item ”diagnosis / enhanced obd ii / data list / all / starter sig” and read the value displayed the hand–held tester.

Result:

2 Inspect park/neutral position switch or clutch start switch
2 Inspect park/neutral position switch or clutch start switch
Toyota Corolla. Inspect park/neutral position switch or clutch start switch
  1. Inspect the park/neutral position switch. (A/t)
  2. disconnect the a2 park/neutral position switch connector.
  3. Check for continuity between each terminal shown below when the shift lever is moved to each range.

Standard:

Toyota Corolla. Inspect park/neutral position switch or clutch start switch
  1. Reconnect the park/neutral position switch connector.
  2. inspect the clutch start switch. (M/t)
  3. disconnect the c8 clutch start switch connector.
  4. Check for continuity between terminals when the switch on and off.

Standard:

  1. Reconnect the clutch start switch connector.
3 Read value of hand–held tester(starter signal)
3 Read value of hand–held tester(starter signal)
  1. Connect the hand–held tester to or obd ii scan tool the dlc3.
  2. turn the ignition switch on and push the hand–held tester main switch on.
  3. select the item ”diagnosis / enhanced obd ii / data list / all / starter sig” and read its value displayed the hand–held tester.

Result:

4 Inspect ignition or starter switch assy
4 Inspect ignition or starter switch assy
Toyota Corolla. Inspect ignition or starter switch assy
  1. Check for continuity between the connector terminals shown in the chart below
5 Read value of hand–held tester(starter signal)
5 Read value of hand–held tester(starter signal)
  1. Connect the hand–held tester or obd ii scan tool to the dlc3.
  2. turn the ignition switch on and push the hand–held tester main switch on.
  3. select the item ”diagnosis / enhanced obd ii / data list / all / starter sig” and read its value displayed the hand–held tester.

Result:

Repair or replace harness and connector
Repair or replace harness and connector Obd ii scan tool (excluding hand–held tester): 1 Inspect ecm
Toyota Corolla. Inspect ecm
  1. Turn the ignition switch on.
  2. measure the voltage between the terminals of the e4 ecm connector.

Standard:

  1. Measure the voltage between the terminals of the e4 ecm connector when the engine is cranked.
  2. Standard:
    2 Inspect park/neutral position switch or clutch start switch
2 Inspect park/neutral position switch or clutch start switch
Toyota Corolla. Inspect park/neutral position switch or clutch start switch
  1. Inspect the park/neutral position switch. (A/t)
  2. disconnect the a2 park/neutral position switch connector.
  3. Check for continuity between each terminal shown below when the shift lever is moved to each range.

Standard:

  1. Reconnect the park/neutral position switch connector.
  2. inspect the clutch start switch. (M/t)
  3. disconnect the c8 clutch start switch connector.
  4. Check for continuity between terminals when the switch on and off.

Standard:

Toyota Corolla. Inspect park/neutral position switch or clutch start switch
  1. Reconnect the clutch start switch connector.
3 Inspect ecm
3 Inspect ecm
Toyota Corolla. Inspect ecm
  1. Turn the ignition switch on.
  2. measure the voltage between the terminals of the e4 ecm connector.

Standard:

  1. Measure the voltage between the terminals of the e4 ecm connector when the engine is cranked.

Standard:

4 Inspect ignition or starter switch assy
4 Inspect ignition or starter switch assy
Toyota Corolla. Inspect ignition or starter switch assy
  1. Disconnect the i10 ignition switch connector.
  2. check for continuity between the connector terminals shown in the chart below.
  3. Reconnect the ignition switch connector.
    5 Inspect ecm
5 Inspect ecm
Toyota Corolla. Inspect ecm
  1. Turn the ignition switch on.
  2. measure the voltage between the terminals of the e4 ecm connector.

Standard:

  1. Measure the voltage between the terminals of the e4 ecm connector when the engine is cranked.

Standard:

Repair or replace harness or connector
Repair or replace harness or connector

Test yourself

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