Toyota Corolla (E120): Inspection procedure

1 Inspect terminal voltage(od – body ground)

  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)

  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)

  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

    Share this page:

    Other materials:

    Key confinement prevention function does not work properly (unlock warning switch circuit)
    Circuit description The unlock warning switch turns on when the key is inserted in the ignition key cylinder and the door courtesy switch turns on when the driver’s door is opened, and the integration relay monitors both switches conditions. According to these switches conditions, the int ...

    Replacing a flat tire
    1 Chock the tires. 2 For vehicles with steel wheels, remove the wheel ornament using the wrench. To protect the wheel ornament, place a rag between the wrench and the wheel ornament, as shown in the illustration. 3 Slightly loosen the wheel nuts (one turn). 4 Turn the tire jack portion ...

    Circuit description
    The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil. Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to ...