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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    Other materials:

    Hood
    Opening the hood 1. Pull the hood lock release lever. The hood will pop up slightly. 2. Pull the auxiliary catch lever to the left and lift the hood. 3. Hold the hood open by inserting the support rod into the slot. WARNING ■Pre-driving check Check that the hood is fully closed and locked. If ...

    Replacement
    1. Remove engine under cover rh 2. Remove fan and generator v belt 3. Remove generator assy Disconnect the wire clamp from the wire clip on the rectifire end frame.  remove the rubber cap and nut, and disconnect the alternator wire.  disconnect the alternator connecto ...

    Inspection procedure
    1 Inspect transmission wire(s1) Disconnect the transmission wire connector from the transaxle.  measure the resistance according to the value(s) in the table below. Standard: 2 Check harness and connector(transmission wire – ecm) Connect the transmission connec ...