Toyota Corolla (E120): Door courtesy switch circuit

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On–vehicle inspection
1. Check battery electrolyte level Check the electrolyte quantity of each cell (maintenance–free battery).  If under the lower level, replace the battery (or add distilled water if possible) and check the charging system.  check the electrolyte quantity of each cell ...

Circuit description
The door key lock and unlock switch is built in the door lock motor. Wiring diagram Inspection procedure 1 Check door lock 2 Check wire harness (tvip ecu  door lock) Disconnect the tvip ecu and door lock connectors.  check the continuity between the terminals of the t ...

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 ...