Body, generic

B009C Left Side Restraints Sensor 6

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B009C is the sixth and last left-side slot in the J2012 sensor block. No carmaker documents this code publicly. Real vehicles show how many side satellites are usual: FCA's 2019 Jeep Cherokee recall 19V-449 lists two engine bay sensors and four for B- or C-pillar positions, three per side at most, and FCA files those pillar units as B2761 to B2765 rather than in the B009x block. A sixth left sensor would therefore suit only long vans, buses or vehicles with several rear rows, where Bosch's option of satellites in the rear body also fits. If B009C appears, check first which sensor the maker assigns to it; a scan tool reading on a car with fewer sensors may point to a wrong module configuration. The airbag lamp lights.

Likely causes

Airbag module configured for more side sensors than are fitted
Damaged rear body harness or plug to the sixth left sensor
Internal fault of the sixth left satellite

Symptoms

  • Airbag warning lamp on
  • Side impact sensing at the rear left is reduced
  • Safety note: airbag system; disconnect the battery and keep the wait time, then have it diagnosed at a specialist workshop

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€60–500
Time0.5–3 h

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

Parts involved

left side restraints sensor 6srs wiringsrs control module

Related codes

B009AB009BB009F

References: static.nhtsa.gov, static.nhtsa.gov, bosch-mobility.com.