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Toyota Corolla Repair Manual: 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

Seat belt buckle switch (lh) malfunction
Dtc b0126/27 seat belt buckle switch (lh) malfunction Dtc b0127/27 seat belt buckle switch (lh) malfunction ...

Inspection procedure
1 Check wire harness(airbag sensor assy center Ц front seat inner belt assy lh) Disconnect the negative (Ц) terminal cable from the battery, and wait at least for 90 seconds.  discon ...

Other materials:

Handling of hose clamps
Before removing the hose, check the depth of the inserting portion and the clamp position in order to restore it surely.  change a deformed or dented clamp for a new one.  in case of reusing the hose, install the clamp on the hose where it has a clamp track.  for a ...

Inspection procedure
1 Check d squib circuit(airbag sensor assy center Ц horn button assy) Disconnect the negative (Ц) terminal cable from the battery, and wait at least for 90 seconds. disconnect the connectors between the airbag sensor assy center and the horn button assy. release the airbag activatio ...

Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot the problem when a normal code is displayed in the diagnostic trouble code chart but the problem is still occurring. Numbers in the table indicate the order in which the circ ...

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