AutoCodes – Generic – B1886

B1886 Code - Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib

Quick Answer

The Restraints Control Module (RCM) checks all of the Safety Seat Belt Pretensioners for faults. Common causes include Faulty Seat Belt Passenger Pretensioner, Seat Belt Passenger Pretensioner harness is open or shorted, Seat Belt Passenger Pretensioner circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1886 indicates Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib.
Common causes: Common causes include Faulty Seat Belt Passenger Pretensioner, Seat Belt Passenger Pretensioner harness is open or shorted, Seat Belt Passenger Pretensioner circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 8,888

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1886 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) B1886 in memory and illuminate the air bag warning indicator.

OBDII Code B1886 - Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib - AutoCodes.com — B1886 Code - Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib

What does this mean?

What are the Possible Causes of the DTC B1886?

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 to Fix the DTC B1886?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1886 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1886 code?

Need more information on how to fix the B1886 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1886 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1886 Ford — Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib
B1886 Lincoln — Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib
B1886 Mazda — Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib
B1886 Mercury — Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib

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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1886 Code

1. What are the common symptoms of OBDII code B1886?

The common symptoms of OBDII code B1886 include the airbag warning light illuminating on the dashboard, the passenger seatbelt pretensioner not functioning properly, and potential issues with the airbag system.

2. What causes the Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib error (code B1886)?

The B1886 code is typically triggered by a low resistance in the passenger seatbelt pretensioner circuit squib, which may be caused by a damaged pretensioner, faulty wiring, or a poor connection.

3. How can I diagnose the B1886 code?

To diagnose the B1886 code, you can use an OBDII scanner to retrieve the specific fault codes related to the seatbelt passenger pretensioner circuit. Additionally, visually inspecting the seatbelt pretensioner and its wiring for any visible damage can also help identify the issue.

4. Can I continue to drive my vehicle with the B1886 code?

It is not recommended to drive your vehicle with the B1886 code present, as it indicates a potential safety issue with the passenger seatbelt pretensioner system. It is advised to address the problem promptly to ensure the proper functioning of the airbag system.

5. How can I repair the Seatbelt Passenger Pretensioner Circuit Resistance Low On Squib issue?

Repairing the B1886 code may involve replacing the damaged passenger seatbelt pretensioner, repairing or replacing any faulty wiring, and ensuring all connections are secure. It is recommended to have the repair performed by a qualified technician.

6. Is it safe to reset the B1886 code without fixing the underlying issue?

Resetting the B1886 code without fixing the underlying issue is not advisable, as it may lead to a potential safety hazard in the event of an accident. It is crucial to address the root cause of the problem to ensure the proper operation of the airbag system.

7. How much does it cost to repair the B1886 OBDII code?

The cost of repairing the B1886 code can vary depending on the extent of the damage, the cost of the replacement parts needed, and the labor charges of the repair shop. It is recommended to obtain quotes from different service providers to compare prices.

8. Can I prevent the B1886 code from occurring in the future?

To prevent the B1886 code from occurring in the future, it is essential to regularly inspect the seatbelt pretensioner system for any signs of damage, ensure proper maintenance of the airbag system, and address any warning lights or issues promptly.

9. Are there any safety risks associated with the B1886 code?

The B1886 code indicates a potential safety risk as it relates to the passenger seatbelt pretensioner system, which plays a crucial role in protecting occupants in the event of a collision. It is important to address the issue promptly to ensure the proper functioning of the airbag system.

10. Can a DIY enthusiast fix the B1886 code at home?

Repairing the B1886 code may require specialized tools and expertise, making it challenging for a DIY enthusiast to fix at home. It is recommended to seek assistance from a professional technician with experience in diagnosing and repairing airbag system issues.