Toyota Corolla (E120): Problem symptoms table

Hint

: proceed with troubleshooting of each circuit in the table below.

Symptom

Suspect area

  • When the ignition switch is in the on position, the srs warning light sometimes comes on after approximately 6 seconds.
  •  Srs warning light circuit malfunction (Always lights up, when dtc is not output).
  • Srs warning light always comes on even when dtc is not output.
  • With the ignition switch is in the on position, the srs warning light does not come on.
  • Srs warning light circuit malfunction (does not light up, when ignition switch is turned to on).
  • Although a srs warning light operates normally, dtc or a normal system code is not displayed.
  • Tc terminal circuit
  • Although the terminals tc and cg are not connected, dtc or a normal system code are displayed
    Share this page:

    Other materials:

    Description
    When troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect the vehicle to the obd ii scan tool complying with sae j1978 or the hand–held tester, and read various data output from the vehicle’s ecm. Obd ii regulation ...

    For vehicles equipped with catalytic converter
    Caution: if large amount of unburned fuel flows into the converter, it may cause overheating and a fire hazard. To prevent this, observe the following precautions. Use only unleaded gasoline.  avoid prolonged idling. Avoid running the engine at idle speed for more than 20 minutes. ...

    Precaution
    1. Check that the battery cables are connected to the correct terminals. 2. Disconnect the battery cables when the battery is given a quick charge. 3. Do not perform tests with a high voltage insulation resistance tester. 4. Never disconnect the battery while the engine is running. 5. Check that ...