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Toyota Corolla Repair Manual: Inspection procedure

Hint

:

Handheld tester

1 Read value of handheld tester(starter signal)

  1. Connect the handheld tester or obd ii scan tool to the dlc3.
  2.  turn the ignition switch on and push the handheld tester main switch on.
  3.  select the item diagnosis / enhanced obd ii / data list / all / starter sig and read the value displayed the handheld tester.

Result:

2 Inspect park/neutral position switch or clutch start switch

2 Inspect park/neutral position switch or clutch start switch

  1. Inspect the park/neutral position switch. (A/t)
  1.  disconnect the a2 park/neutral position switch connector.
  2.  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.
  1.  inspect the clutch start switch. (M/t)
  1.  disconnect the c8 clutch start switch connector.
  2.  Check for continuity between terminals when the switch on and off.

Standard:

  1. Reconnect the clutch start switch connector.

3 Read value of handheld tester(starter signal)

3 Read value of handheld tester(starter signal)

  1. Connect the handheld tester to or obd ii scan tool the dlc3.
  2.  turn the ignition switch on and push the handheld tester main switch on.
  3.  select the item diagnosis / enhanced obd ii / data list / all / starter sig and read its value displayed the handheld tester.

Result:

4 Inspect ignition or starter switch assy

4 Inspect ignition or starter switch assy

  1. Check for continuity between the connector terminals shown in the chart below

5 Read value of handheld tester(starter signal)

5 Read value of handheld tester(starter signal)

  1. Connect the handheld tester or obd ii scan tool to the dlc3.
  2.  turn the ignition switch on and push the handheld tester main switch on.
  3.  select the item diagnosis / enhanced obd ii / data list / all / starter sig and read its value displayed the handheld tester.

Result:

Repair or replace harness and connector

Repair or replace harness and connector

Obd ii scan tool (excluding handheld tester):

1 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

  1. Inspect the park/neutral position switch. (A/t)
  1.  disconnect the a2 park/neutral position switch connector.
  2.  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.
  1.  inspect the clutch start switch. (M/t)
  1.  disconnect the c8 clutch start switch connector.
  2.  Check for continuity between terminals when the switch on and off.

Standard:

  1. Reconnect the clutch start switch connector.

3 Inspect ecm

3 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

  1. Disconnect the i10 ignition switch connector.
  2.  check for continuity between the connector terminals shown in the chart below.

  1. Reconnect the ignition switch connector.

5 Inspect ecm

5 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

Monitor description
While the engine is being cranked, the battery positive voltage is applied to terminal sta of the ecm. If the ecm detects the starter control signal (sta) while the vehicle is driving, it will ...

Ecm power source circuit
...

Other materials:

Inspection procedure
Hint: 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 ...

General information
There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill to troubleshoot. The fact is, however, that if you proceed by inspecting the circuits one by one, ...

Inspection procedure
Handheld tester: 1 Perform active test by handheld tester(operation of circuit opening relay) Connect the handheld tester to the dlc3.  turn the ignition switch on and push the handheld tester main switch on.  select the item diagnosis / enhanced obd ii / active test / fu ...

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