Toyota Corolla (E120): Circuit description

The door courtesy switch turns on when the door is opened and off when the door is closed.

Wiring diagram

Inspection procedure

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    Starting the engine
    1 Continuously variable transmission: Ensure that the shift lever is in P and depress the brake pedal. Manual transmission: Shift the shift lever to N and depress the clutch pedal. 2 Touch the Toyota emblem side of the electronic key to the engine switch. When the electronic key is detected, a ...

    Overhaul
    1. Remove cylinder block water drain cock sub–assy Remove the cylinder block water drain cock from the cylinder block. 2. Inspect connecting rod thrust clearance Using a dial indicator, measure the thrust clearance while moving the connecting rod back and forth. Standard t ...

    Basic inspection
    When the malfunction is not confirmed in the dtc check, troubleshooting should be carried out in all the possible circuits considered as causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location causing the problem can be found ...