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Engine-Codes - Generic - B0091

B0091 Code - Left Front Side Air Bag Satellite Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents
What does this mean?

|B0091 code possible causes

  • Faulty Left Front Side Air Bag Satellite Sensor
  • Left Front Side Air Bag Satellite Sensor harness is open or shorted
  • Left Front Side Air Bag Satellite Sensor circuit poor electrical connection

|How is the B0091 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the B0091 code

Labor: 1.0

The cost to diagnose the B0091 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B0091 code possible symptoms?

  • Air Bag Warning Light ON

|What is B0091 code meaning?

The Restraints Control Module (RCM) monitors all of Supplemental Restraint System (SRS) device connections. If the RCM detects a connection or device connected that is not stored in memory or is not configured for the component, the RCM will set a Diagnostic Trouble Code (DTC) and send a message to the Instrument Panel Cluster (IPC) to illuminate air bag warning indicator.

|Need more information with the B0091 code?

Need more information on how to fix the B0091 code?
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|B0091 code information for specific makes

|Need help with a B0091 code?

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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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