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

    Share this page:

    Other materials:

    Replacement
    Hint: components:  1. Remove front wheel 2. Remove front axle hub lh nut  sst 09930–00010 3. Separate front stabilizer link assy lh 4. Separate speed sensor front lh (w/ abs) 5. Separate front disc brake caliper assy lh Remove the 2 bolts, separate the brake caliper assy ...

    Stopping the engine
    1 Stop the vehicle. 2 Continuously variable transmission: Shift the shift lever to P. Manual transmission: Shift the shift lever to N. 3 Set the parking brake. 4 Press the engine switch. 5 Vehicles without a multi-information display: Release the brake pedal (continuously variable transmission ...

    Inspection procedure
    1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the airbag sensor assy center.  connect the negative (–) terminal cable to the battery, and wa ...