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AutoCodes - Generic - B1881

B1881 Code - Seat Belt Passenger Pretensioner Circuit Open

- Code Popularity: 24,439 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By - Updated Jul 11, 2019
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|Code B1881 Possible Causes

  • Faulty Seat Belt Passenger Pretensioner
  • Seat Belt Passenger Pretensioner harness is open or shorted
  • Seat Belt Passenger Pretensioner circuit poor electrical connection
  • Faulty Restraints Control Module (RCM)

|How do I Fix the Code B1881?

Check 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.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B1881?

Labor: 1.0

The cost of diagnosing the B1881 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1881 Possible Symptoms?

  • Air Bag Warning Light ON

|Code B1881 Description

The Restraints Control Module (RCM) checks all of the Safety Seat Belt Pretensioners for faults. If the RCM detects a low resistance or open on the Passenger Safety Seat Belt Pretensioner circuits, it will store the Diagnostic Trouble Code (DTC) B1881 in memory and illuminate the air bag warning indicator.

OBDII Code B1881 - Seat Belt Passenger Pretensioner Circuit Open -
B1881 Code - Seat Belt Passenger Pretensioner Circuit Open

|Need More Information on the B1881 Code?

Need more information on how to fix the B1881 code? Get Access to Factory Service Manuals

|Information for Specific Makes

  • B1881 Ford Seat Belt Passenger Pretensioner Circuit Open
  • B1881 Lincoln Seat Belt Passenger Pretensioner Circuit Open
  • B1881 Mazda Seat Belt Passenger Pretensioner Circuit Open
  • B1881 Mercury Seat Belt Passenger Pretensioner Circuit Open

|Need Help with the B1881 Code?

Get the B1881 code diagnosed by a professional: Find a repair shop in your area

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.

|Code B1881 comments

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