Toyota Corolla (E120): Circuit description

The seat belt buckle switch (lh) circuit consists of the airbag sensor assy center and front seat inner belt assy (lh).

Dtc b0126/b0127/27 is recorded when a malfunction is detected in the seat belt buckle switch (lh) circuit.

Wiring diagram

Wiring diagram

Inspection procedure

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    Opening the trunk from outside the vehicle
    ◆ Smart key system (if equipped) While carrying the electronic key, press the button on the trunk lid. When all the doors are unlocked with the power door lock system, the trunk can be opened without carrying the electronic key. ◆ Wireless remote control (if equipped) ► Veh ...

    Overhaul
    1. Remove control shift lever bush Remove the control shift lever bush from the selecting bellcrank assy. 2. Remove selecting bellcrank dust cover no.1 Remove the selecting bellcrank dust cover no.1 From the selecting bellcrank assy. 3. Remove selecting bell crank no.2 ...

    Inspection
    1. Charcoal canister assy Visually check the charcoal canister for cracks or damage. Inspect the charcoal canister operation.  Plug the vent port with the cap.  While holding the purge port closed, blow air (1.76 Kpa, 18 gf/cm2, 0.26 Psi) into the evap port and ...