AutoCodes – Jeep – B1C4A Jeep

B1C4A Jeep Code - 1st Row Passenger Retractor Tensioner Circuit Shorted Together

Quick Answer

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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: B1C4A Jeep indicates 1st Row Passenger Retractor Tensioner Circuit Shorted Together.
Common causes: Common causes include Faulty 1st Row Passenger Retractor Tensioner, 1st Row Passenger Retractor Tensioner harness is open or shorted, 1st Row Passenger Retractor Tensioner 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 1,500

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 Aug 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1C4A Jeep Description

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a floating configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. The use of the Supplemental Restraints System (SRS) Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector. The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is in on. The module then monitors the data return wire to determine the state of the circuit.

OBDII Code B1C4A Jeep - 1st Row Passenger Retractor Tensioner Circuit Shorted Together - AutoCodes.com — B1C4A Jeep Code - 1st Row Passenger Retractor Tensioner Circuit Shorted Together

What does this mean?

What are the Possible Causes of the DTC B1C4A Jeep?

Faulty 1st Row Passenger Retractor Tensioner
1st Row Passenger Retractor Tensioner harness is open or shorted
1st Row Passenger Retractor Tensioner circuit poor electrical connection
Faulty Occupant Restraint Controller (ORC)

How to Fix the DTC B1C4A Jeep?

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 B1C4A Jeep 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 B1C4A Jeep code?

Need more information on how to fix the B1C4A Jeep code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1C4A Jeep 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.

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 B1C4A Jeep Code

1. What are the common symptoms of OBDII code B1C4A in a Jeep related to the 1st Row Passenger Retractor Tensioner Circuit Shorted Together?

- The common symptoms include the airbag warning light illuminating on the dashboard and a potential loss of functionality of the passenger seatbelt retractor and tensioner system.

2. What causes the OBDII code B1C4A to trigger in a Jeep, indicating a shorted 1st Row Passenger Retractor Tensioner Circuit?

- The code is typically triggered by a short circuit in the wiring of the 1st Row Passenger Retractor Tensioner Circuit, which can be caused by damaged wiring, a faulty tensioner mechanism, or a problem with the airbag control module.

3. How can I diagnose the issue causing OBDII code B1C4A in my Jeep's 1st Row Passenger Retractor Tensioner Circuit?

- To diagnose the issue, it is recommended to perform a visual inspection of the wiring harness, connectors, and tensioner mechanism for any signs of damage or corrosion. Additionally, using a diagnostic scanner to retrieve the specific fault codes can help pinpoint the exact cause.

4. Is it safe to continue driving my Jeep with OBDII code B1C4A related to the 1st Row Passenger Retractor Tensioner Circuit Shorted Together?

- It is not recommended to continue driving the vehicle with this code present, as it indicates a potential malfunction in the passenger seatbelt retractor and tensioner system, which compromises occupant safety in the event of a collision.

5. Can I reset the OBDII code B1C4A in my Jeep myself after repairing the 1st Row Passenger Retractor Tensioner Circuit issue?

- Yes, you can typically reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the fault code memory. However, it is essential to ensure that the underlying issue has been properly repaired before clearing the code.

6. What are some repair tips for addressing OBDII code B1C4A in a Jeep due to a shorted 1st Row Passenger Retractor Tensioner Circuit?

- Repair tips may include checking and repairing any damaged wiring, replacing the faulty tensioner mechanism if necessary, and ensuring all connectors are securely fastened. It is also advisable to perform a thorough inspection of the entire circuit to prevent future issues.

7. Will fixing the underlying issue causing OBDII code B1C4A in my Jeep's 1st Row Passenger Retractor Tensioner Circuit require professional assistance?

- While some repairs related to this code can be done by DIY enthusiasts, diagnosing and fixing complex electrical issues may require professional assistance from a qualified technician with experience in airbag systems and circuit diagnostics.

8. How much can I expect to pay for repairing OBDII code B1C4A in my Jeep caused by a shorted 1st Row Passenger Retractor Tensioner Circuit?

- The cost of repair can vary depending on the extent of the damage, the parts needed for replacement, and labor charges. It is advisable to obtain quotes from reputable repair shops or dealerships to get an accurate estimate.

9. Are there any safety precautions I should take when working on the 1st Row Passenger Retractor Tensioner Circuit to address OBDII code B1C4A in my Jeep?

- It is crucial to disconnect the vehicle's battery before working on any electrical components to avoid the risk of accidental airbag deployment. Additionally, following proper procedures outlined in the vehicle's service manual is recommended to ensure safety and prevent further damage.