Engine-Codes
 
OBDII Code List
 
B0090 LINCOLN

B0090 LINCOLN - Left Frontal Restraints Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Faulty Left Frontal Restraints Sensor
  • Left Frontal Restraints Sensor harness is open or shorted
  • Left Frontal Restraints Sensor circuit poor electrical connection
  • Possible symptoms

  • Air Bag Warning Light ON
  • B0090 Lincoln 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 B0090 Lincoln - Left Frontal Restraints Sensor 1 - Engine-Codes.com

    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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