Toyota Corolla (E120): Inspection procedure

1 Check tvip ecu

  1. Check that the operation of the tvip function is normal.

Hint

: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not.

2 Check wire harness (tvip ecu integration relay)

2 Check wire harness (tvip ecu integration relay)

  1. Disconnect the tvip ecu and integration relay connectors.
  2. check the continuity between the terminal of the tvip ecu connector and integration relay connectors, 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. Disconnect battery negative terminal 2. Remove engine under cover rh 3. Remove starter assy Disconnect the starter connector.  open the terminal cover. remove the nut, then disconnect the starter wire.  remove the 2 bolts, then remove the starter. 4. Install starter a ...

    Circuit description
    The actuator motor is operated by signals from the cruise control ecu assy. Acceleration and deceleration signals are transmitted by changes in the duty ratio (see below). Duty ratio: the duty ratio is the ratio of the period of continuity in one cycle. For example, if a is the period of co ...

    Purpose of the readiness tests
    The on–board diagnostic (obd ii) system is designed to monitor the performance of emission–related components and report any detected abnormalities in the form of diagnostic trouble codes (dtcs). Since the various components need to be monitored during different driving condition ...