Subaru Crosstrek Service Manual: Dtc b16f5 side airbag sensor lh recognition error

Diagnosis start condition:

Ignition voltage is 10 V to 16 V.

DTC detecting condition:

• Side airbag sensor LH is misinstalled.

• Airbag CM is faulty.

Before performing diagnosis, refer to “CAUTION” in “General Description”. General Description > CAUTION">

1.REPLACE SIDE AIRBAG SENSOR (LH).

1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 60 seconds or more.

2) Replace the side A/B sensor (LH) with a genuine sensor. Side Airbag Sensor > REMOVAL">

Does the warning light go off?

Finish the diagnosis.

Replace the airbag control module. Airbag Control Module > REMOVAL">

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Other materials:

Precautions against vehicle modification
WARNING To maintain the full safety performance of the Subaru Ascent SRS airbag system, no modifications should be made to any related components, wiring, or structural elements. Unauthorized changes may lead to accidental airbag deployment or system failure, significantly increasing th ...

Removal
HVAC SYSTEM (HEATER, VENTILATOR AND A/C) > Heater Vent DuctREMOVALCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">1. Disconnect the battery ground c ...

Removal
EXTERIOR/INTERIOR TRIM > Rear BumperREMOVAL1. CROSSTREK MODEL1. Disconnect the ground cable from battery. NOTE">2. Remove the light assembly - rear combination.CAUTION:Be careful not to damage the clips.(1) Release the bolts and clips, then pull out the light assembly - rear combination ...