B0091 - Left Front Side Air Bag Satellite Sensor

Repair Importance Level: 3/3

Repair Difficulty Level: 3/3

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

What does this mean?

Possible symptoms

Air Bag Warning Light ON

B0091 Description

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.

OBDII Code B0091 - Left Front Side Air Bag Satellite Sensor - Engine-Codes.com

B0091 Information for specific makes

B0091 BUICK Front End Sensor 3 Erratic

B0091 CADILLAC Front End Sensor 3 Erratic

B0091 CHEVROLET Front End Sensor 3 Erratic

B0091 FORD Left Side Restraints Sensor 1

B0091 GMC Front End Sensor 3 Erratic

B0091 INFINITI Left Front Side Air Bag Satellite Sensor

B0091 LINCOLN Left Side Restraints Sensor 1

B0091 MERCURY Left Side Restraints Sensor 1

B0091 NISSAN Left Front Side Air Bag Satellite Sensor

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.