Body, generic

B0011 Passenger Frontal Stage 2 Deployment Control

Check engine lightUsually off

EmissionsNot relevant

Drive cycleNot required

Limp modeNo

B0011 is the passenger counterpart of B0002: it concerns the second inflator stage of the dashboard airbag, which the module adds in severe crashes or fires with a delay. Mercedes-Benz logs B001113 for an open stage 2 squib of the front passenger airbag, and Mitsubishi lists B0011 as passenger airbag module 2. Stage 1 of the same bag has its own code B0010, a third element B0012. Since both stages leave the module through one connector, a code for stage 2 alone usually means a fault in the stage 2 pins, lead or squib rather than a general connector problem. Older GM modules (Saab 9-3 up to 2011) put passenger stage 2 faults under B0012 to B0014 instead. The airbag lamp is on and adaptive inflation for the passenger is lost.

Likely causes

Poor contact on the stage 2 pins or open stage 2 lead

Stage 2 squib in the passenger airbag module faulty

Output stage in the restraint control module faulty

Symptoms

Airbag warning lamp on
Passenger airbag loses its second stage for severe crashes
Safety note: do not probe the airbag circuit yourself; unplug airbag connectors only with the battery disconnected and the stated wait time observed

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€100–1,300

Time0.5–4 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

passenger airbag modulesrs wiringsrs control module

Related codes

B0010 B0012 B0002

References: static.nhtsa.gov, mitsubishitechinfo.com, saabwisonline.com.