Toyota Corolla (E120): Ecu power source circuit

Circuit description

This circuit provides power to operate the tvip ecu.

Wiring diagram

Inspection procedure

Inspection procedure

1 Check fuse (ecu–b)

  1. Remove the fuse from the instrument panel j/b.
  2.  check the continuity of the fuse.

Standard: continuity

2 Check tvip ecu

2 Check tvip ecu

  1. Disconnect the tvip ecu connector.
  2.  measure the voltage between the terminals of the ecu connector, as shown in the illustration and table.

Standard:

3 Check wire harness (tvip ecu  body ground)

3 Check wire harness (tvip ecu  body ground)

  1. Disconnect the tvip ecu connector.
  2. check the connector on the harness side, as shown in the illustration and table.

Standard:

Check and replace tvip ecu

Check and replace tvip ecu

    Share this page:

    Other materials:

    Replacement
    1. Remove combination meter assembly 2. Disconnect brake master cylinder push rod clevis  remove the clip and push rod clevis pin and wave washer, and disconnect the push rod clevis from the brake pedal. 3. Remove brake pedal support sub–assy Remove the bolt from the bra ...

    Favorites list setting
    Up to 15 contacts (maximum of 4 numbers per contact) can be registered in the favorites list. ■ Registering the contacts in the favorites list 1 Select “Add Favorite”. 2 Select the desired contact to add to the favorites list. Dimmed contacts are already stored as a favorite. 3 Chec ...

    Setting the tire pressure (vehicles with a tire pressure warning system)
    In the following situations, it will be necessary to perform the tire inflation pressure setting procedure of the tire pressure warning system. When the specified tire inflation pressure has changed, such as due to carried load, etc. When the tire inflation pressure is changed such as when t ...