B0121

DTC B0121/26 SEAT BELT BUCKLE SWITCH (RH) MALFUNCTION
DTC B0122/26 SEAT BELT BUCKLE SWITCH (RH) MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detection Condition:

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

DTC B0121/26 or B0122/26 is recorded when a malfunction is detected in the front seat inner belt RH circuit.

Wiring Diagram:

Step 1:

Step 2-3:

Step 4-5:

Step 6:

INSPECTION PROCEDURE

CAUTION: Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag and seat belt pretensioner activation.

a. Turn the ignition switch OFF.
b. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
c. Disconnect the connectors from the airbag sensor center.
d. Disconnect the connector from the horn button.
e. Disconnect the connector from the front passenger airbag.
f. Disconnect the connector from the front seat airbag LH.
g. Disconnect the connector from the front seat airbag RH.
h. Disconnect the connector from the front seat outer belt LH.
i. Disconnect the connector from the front seat outer belt RH.