AutoCodes – Dodge – B1C18 Dodge

B1C18 Dodge Code - Passenger Active Headrest Control Circuit Low

Quick Answer

The Passenger Active Headrest signal circuit is driven by a solenoid that also uses a diode in parallel. Common causes include Faulty Passenger Active Headrest, Passenger Active Headrest harness is open or shorted, Passenger Active Headrest 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: B1C18 Dodge indicates Passenger Active Headrest Control Circuit Low.
Common causes: Common causes include Faulty Passenger Active Headrest, Passenger Active Headrest harness is open or shorted, Passenger Active Headrest 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 3,047

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 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1C18 Dodge Description

The Passenger Active Headrest signal circuit is driven by a solenoid that also uses a diode in parallel. The single electrical component of the Active Headrest (AHR) unit is the latch-release solenoid. The solenoid is connected by a 2 way pigtail wire and harness connector. The pigtail wire and 2 way connector are routed through the center of one of the headrest support posts and down through the guide sleeve to the interior of the seat back, where it connects to the seat wire harness. The solenoid is grounded at an independent dedicated ground. The AHR components itself cannot be repaired. If damaged or ineffective, the AHR must be replaced as a new assembly. If upon inspection the AHR has deployed it can be reset following the proper reset method.

OBDII Code B1C18 Dodge - Passenger Active Headrest Control Circuit Low - AutoCodes.com — B1C18 Dodge Code - Passenger Active Headrest Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1C18 Dodge?

Faulty Passenger Active Headrest
Passenger Active Headrest harness is open or shorted
Passenger Active Headrest circuit poor electrical connection
Fault Occupant Restraint Controller (ORC)

How to Fix the DTC B1C18 Dodge?

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 B1C18 Dodge 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 B1C18 Dodge code?

Need more information on how to fix the B1C18 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1C18 Dodge 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 B1C18 Dodge Code

1. What are the common symptoms of OBDII code B1C18 in a Dodge related to the Passenger Active Headrest Control Circuit Low?

The common symptoms include the active headrest not deploying properly in the event of a rear-end collision and the airbag warning light being illuminated on the dashboard.

2. What are the possible causes of OBDII code B1C18 in a Dodge?

The code B1C18 in a Dodge typically indicates a fault in the Passenger Active Headrest Control Circuit due to issues such as a damaged wiring harness, loose connections, or a malfunctioning control module.

3. How can I diagnose the OBDII code B1C18 in my Dodge?

Diagnosing OBDII code B1C18 involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connections related to the passenger active headrest system, and testing the control module for proper functionality.

4. Can I continue driving my Dodge with OBDII code B1C18 present?

It is not recommended to drive your Dodge with OBDII code B1C18 present, as it indicates a potential safety issue with the passenger active headrest system that may compromise occupant protection in the event of a rear-end collision.

5. How can I repair OBDII code B1C18 in my Dodge?

Repairing OBDII code B1C18 involves addressing the underlying cause of the fault, which may include repairing or replacing damaged wiring, securing loose connections, or replacing the faulty control module as needed.

6. Is OBDII code B1C18 in a Dodge a serious issue?

OBDII code B1C18 related to the Passenger Active Headrest Control Circuit Low should be taken seriously, as it can affect the proper deployment of the active headrest system designed to enhance occupant safety in certain collision scenarios.

7. Can I reset OBDII code B1C18 in my Dodge by disconnecting the battery?

While disconnecting the battery may reset the fault code temporarily, it will not address the underlying issue causing OBDII code B1C18. It is important to diagnose and repair the root cause of the problem to ensure proper functionality of the passenger active headrest system.

8. How much does it cost to repair OBDII code B1C18 in a Dodge?

The cost of repairing OBDII code B1C18 in a Dodge can vary depending on the specific cause of the fault, the extent of the repairs needed, and labor rates in your area. It is recommended to consult with a qualified mechanic or dealership for an accurate estimate.

9. Can a DIY enthusiast fix OBDII code B1C18 in a Dodge?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code B1C18, it is recommended to have the issue addressed by a professional technician with experience in automotive electrical systems to ensure proper repair and safety compliance.

10. How can I prevent OBDII code B1C18 from occurring in my Dodge in the future?

To help prevent OBDII code B1C18 from occurring in the future, it is important to perform regular maintenance checks on the passenger active headrest system, avoid physical damage to wiring and connectors, and address any warning signs promptly to prevent potential faults.