Toyota Corolla (E120): Diagnostic trouble code chart

Pre–check

Terminals of ecu

Other materials:

Key confinement prevention function does not work properly (unlock warning switch circuit)
Circuit description The unlock warning switch turns on when the key is inserted in the ignition key cylinder and the door courtesy switch turns on when the driver’s door is opened, and the integration relay monitors both switches conditions. According to these switches conditions, the int ...

Inspection procedure
Hint: troubleshoot each trouble symptom in accordance with the chart below. 1 Clear dtc Connect the hand–held tester or the obd ii scan tool to the dlc 3.  turn the ignition switch on and push the hand–held tester or the obd ii scan tool main switch on.  read the dtc . ...

Alarm
The alarm uses light and sound to give an alert when an intrusion is detected. The alarm is triggered in the following situations when the alarm is set: A locked door or trunk is unlocked or opened in any way other than using the entry function (if equipped), wireless remote control, mechani ...