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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    Inspection procedure
    Hint: start the inspection from step 1 in case of using the hand–held tester and start from step 2 in case of not using hand–held tester. 1 Inspect brake actuator assy Select the datalist mode on the hand–held tester.  check the operation sound of the abs pump motor when operat ...

    Components
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    Replacement
    1. Remove radiator grille sub–assy 2. Remove front bumper cover 3. Remove fog lamp assy lh Remove a nut and release a claw.  remove the fog light assy lh. 4. Put vehicle these conditions 5. Adjust fog light aim 6. Check fog light aim ...