Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    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 ci ...

    Inspection procedure
    Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

    Wireless charger (if equipped)
    A portable device, such as a smartphone or mobile battery, can be charged by just placing it on the charging area, provided the device is compatible with the Qi wireless charging standard created by the Wireless Power Consortium. The wireless charger cannot be used with a portable device that is la ...