Toyota Corolla (E120): Inspection procedure

1 Check operation(starter)

  1. Check that the starter operates normally and that the engine starts.

2 Input signal check

2 Input signal check

  1. See input signal check on page 05–745.
  2.  check the indicator light when shifting into except d position.

    Ok: the indicator light goes off when shifting into except d position.

3 Inspect terminal voltage(d)

3 Inspect terminal voltage(d)

  1. Turn the ignition switch to on.
  2.  measure voltage between terminal 4 (d) of cruise control ecu assy connector and body ground when shifting into d position and other positions.

    Ok:

4 Check harness and connector(between cruise control ecu assy

4 Check harness and connector(between cruise control ecu assy and park/neutral position switch)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and park/ neutral position switch

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

    Share this page:

    Other materials:

    Problem symptoms table
    Hint: use the table below to help determine the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts. 1. Headlamp and tail lamp 2. Front fog lamp system 3. Turn signal and hazard warni ...

    Spiral cable sub–assy
    Components Replacement Hint: components: 1. Precaution 2. Disconnect battery negative terminal 3. Place front wheels facing straight ahead  check that the front wheels are facing straight ahead. 4. Remove horn button assy 5. Remove steering wheel assy  sst 09950–50013 ...

    Circuit description
    In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...