Engine-CodesJeep – B1C11 Jeep

B1C11 Jeep Code - Driver Active Headrest Control Circuit

Quick Answer

The B1C11 code for Jeep vehicles specifically relates to the Driver Active Headrest Control Circuit. Common causes include Wiring harness issues, such as frayed or damaged wires, Faulty sensors that are not detecting rear-end impacts accurately, Malfunctioning control module responsible for managing the active headrest system. 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
B1C11 Jeep indicates Driver Active Headrest Control Circuit.
Common causes
Common causes include Wiring harness issues, such as frayed or damaged wires, Faulty sensors that are not detecting rear-end impacts accurately, Malfunctioning control module responsible for managing the active headrest system.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1C11 Jeep Description

The B1C11 code for Jeep vehicles specifically relates to the Driver Active Headrest Control Circuit. This code indicates a problem with the circuit that controls the active headrest system in the driver's seat. Active headrests are a safety feature designed to reduce the risk of whiplash injuries in the event of a rear-end collision. When the vehicle's sensors detect a rear-end impact, the active headrests automatically move forward to support the driver's head and neck, reducing the chances of injury.

OBDII Code B1C11 Jeep - Driver Active Headrest Control Circuit
B1C11 Jeep Code - Driver Active Headrest Control Circuit

Common Causes of B1C11 Jeep

  1. Wiring harness issues, such as frayed or damaged wires.
  2. Faulty sensors that are not detecting rear-end impacts accurately.
  3. Malfunctioning control module responsible for managing the active headrest system.
  4. Poor connections or corrosion in the circuitry.
  5. Communication errors between the various components of the system.

Symptoms of B1C11 Jeep

  1. Illumination of the airbag warning light on the dashboard.
  2. Inability to adjust the position of the active headrest.
  3. Unusual noises coming from the headrest area.
  4. The active headrest deploying unexpectedly or failing to deploy in a rear-end collision.

How to Fix B1C11 Jeep

  1. Begin by conducting a thorough visual inspection of the wiring harness and connectors for any signs of damage. Repair or replace any damaged wires or connectors.
  2. Use a diagnostic scanner to check for specific error codes related to the active headrest control circuit. This will help pinpoint the exact source of the issue.
  3. Test the sensors and control module to ensure they are functioning correctly. Replace any faulty components as needed.
  4. Clear the error codes from the vehicle's computer system and reset the active headrest system.
  5. Perform a final test drive to confirm that the issue has been resolved and that the active headrest system is working as intended.

Cost to Fix B1C11 Jeep

The typical repair costs for addressing the B1C11 code related to the Driver Active Headrest Control Circuit can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the parts for this repair could range from $100 to $300, while the labor costs may fall between $150 and $400. Keep in mind that these are rough estimates, and actual costs can vary based on factors such as location, vehicle make and model, and the rates charged by the auto repair shop. It's advisable to contact local shops for more accurate pricing information.

Tech Notes for B1C11 Jeep

B1C11-11 DRIVER ACTIVE HEADREST CONTROL CIRCUIT SHORT TO GROUND

B1C11-12 DRIVER ACTIVE HEADREST CONTROL CIRCUIT SHORT TO BATTERY

B1C11-13 DRIVER ACTIVE HEADREST CONTROL CIRCUIT OPEN

When is the Code Detected?

This code will set, if the Occupant Restraint Controller (ORC) detects low voltage on the Active Head Restraint 1st Row Driver Signal circuit.

Need more information about the B1C11 Jeep code?

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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 B1C11 Jeep Code

What does the OBDII code B1C11 indicate in a Jeep?

The code B1C11 indicates a problem with the Driver Active Headrest Control Circuit, which is responsible for the operation of the active headrest feature in the driver's seat.

What are the common symptoms associated with the B1C11 code?

Common symptoms may include a malfunctioning driver active headrest, warning lights on the dashboard, or the headrest not adjusting as intended during a collision.

What could cause the B1C11 code to trigger in my Jeep?

The code can be triggered by a faulty headrest control module, damaged wiring or connectors in the headrest circuit, or a malfunction in the seat position sensor.

How can I diagnose the issue related to the B1C11 code?

To diagnose the issue, start by inspecting the wiring and connectors for damages or corrosion. Then, use an OBDII scanner to check for any related codes and perform a continuity test on the headrest control circuit.

What repairs are typically needed to fix the B1C11 code?

Repairs may involve replacing the driver active headrest control module, repairing or replacing damaged wiring, or ensuring all connectors are secure and free of corrosion.

Can I reset the B1C11 code without fixing the issue?

While you can reset the code using an OBDII scanner, the code will likely reappear if the underlying issue is not addressed.

Is it safe to drive my Jeep with the B1C11 code?

While it may not impact the overall drivability of the vehicle, the headrest may not function as intended, which can reduce safety during a collision. It’s advisable to have it checked and repaired.

How much does it typically cost to repair the Driver Active Headrest Control Circuit?

The cost can vary widely depending on the specific issue but may range from $100 to $500, including parts and labor, depending on whether it’s a wiring repair or module replacement.

Can I perform repairs for the B1C11 code myself?

If you have experience with automotive wiring and electronics, you might be able to diagnose and repair the issue yourself. However, if you're unsure, it's best to consult a professional mechanic.

Will the B1C11 code affect other systems in my Jeep?

Typically, the B1C11 code is specific to the active headrest system and should not affect other vehicle systems, but it may indicate broader electrical issues if wiring is involved.

Discuss the causes and fixes for B1C11 Jeep OBDII Code

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