Toyota Corolla (E120): Fail–safe chart

If any of the following codes is recorded, the ecm enters the fail–safe mode.

Check for intermittent problems

Check for intermittent problems

Hand–held tester only:

by putting the vehicle’s ecm in the check mode, the 1 trip detection logic is possible instead of the 2 trip detection logic, and the sensitivity to detect faults is increased. This makes it easier to detect intermittent problems.

  1. Clear the dtcs .
  2.  set the check mode .
  3.  perform a simulation test .
  4.  check the connector and terminal .
  5.  wiggle the harness and connector
    Share this page:

    Other materials:

    Engine rear oil seal
    Replacement 1. Remove manual transaxle assy (m/t transaxle) 2. Remove automatic transaxle assy (a/t transaxle) 3. Remove clutch cover assy (m/t transaxle)  remove the 6 bolts and clutch cover. 4. Remove clutch disc assy (m/t transaxle) 5. Remove flywheel sub–assy (m/t transaxle ...

    Ecm (1zz–fe)
    Replacement 1. Disconnect battery negative terminal 2. Remove glove compartment door assy 3. Remove ecm Remove the 2 clips using a clip remover. Then, open the cover. Disconnect the 4 ecm connectors.  remove the wire harness from the wire harness clamp. Remove the 2 ...

    How to proceed with troubleshooting
    The hand–held tester can be used at step 3, 4, 5, 7, 10. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect hand–held tester to dlc3 Hint: if the display indicates a communication fault in the tool, inspect dlc3. 4 Check dtc and freeze frame data Hint: record or pr ...