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:

    Things you should know
    ■ If you notice any symptoms If you notice any of the following symptoms, refer to the likely cause and the solution, and re-check. If the symptom is not resolved by the solution, have the vehicle inspected by your Toyota dealer. CAUTION ■When using the rear view monitor system ...

    Checking the engine coolant
    The coolant level is satisfactory if it is between the "MAX" and "MIN" lines on the reservoir when the engine is cold. Reservoir "MAX" line "MIN" line If the level is on or below the "MIN" line, add coolant up to the "MAX" line. ■Coolant selection Only use "Toyota Super Long Life Coolant" or ...

    How to proceed with troubleshooting
    The hand–held tester can be used at step 3, 4, 6, 9. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect the obd ii scan tool or hand–held tester to dlc3 4 Check and clear dtc and freeze frame data 5 Visual inspection 6 Setting the check mode diagnosis 7 Proble ...