AutoCodes – RAM – B1C19 RAM

B1C19 RAM Code - Passenger Active Headrest Control Circuit High

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: B1C19 RAM indicates Passenger Active Headrest Control Circuit High.
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 545

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 B1C19 RAM 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 B1C19 RAM - Passenger Active Headrest Control Circuit High - AutoCodes.com — B1C19 RAM Code - Passenger Active Headrest Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B1C19 RAM?

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 B1C19 RAM?

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 B1C19 RAM 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 B1C19 RAM code?

Need more information on how to fix the B1C19 RAM code? Get Access to Factory Service Manuals

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Get the B1C19 RAM 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 B1C19 RAM Code

1. What are the common symptoms of OBDII code B1C19 RAM (Passenger Active Headrest Control Circuit High)?

The common symptoms of this code may include the active headrest not deploying properly, the airbag warning light illuminating on the dashboard, and potential loss of power to the headrest control system.

2. What are the possible causes of OBDII code B1C19 RAM?

Possible causes of this code include a faulty passenger active headrest control module, damaged wiring or connectors in the headrest control circuit, or a malfunctioning headrest deployment mechanism.

3. How can I diagnose OBDII code B1C19 RAM?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, checking the wiring and connections in the passenger active headrest control circuit, and testing the headrest control module for proper functionality.

4. Can I repair OBDII code B1C19 RAM myself?

Repairing this code may require advanced automotive knowledge and specialized tools. If you are experienced in automotive electrical systems, you may be able to diagnose and repair the issue yourself. Otherwise, it is recommended to seek professional assistance.

5. Is it safe to drive with OBDII code B1C19 RAM active?

Driving with this code may not pose an immediate safety risk, but it is important to address the underlying issue promptly to ensure the proper functioning of the passenger active headrest system in the event of a collision.

6. How much does it typically cost to repair OBDII code B1C19 RAM?

The cost of repairing this code can vary depending on the specific cause of the issue, labor rates in your area, and the cost of replacement parts. It is advisable to obtain quotes from multiple service centers for an accurate estimate.

7. Can resetting the OBDII code B1C19 RAM clear the issue?

Resetting the code may temporarily clear the fault from the system, but if the underlying problem persists, the code is likely to reappear. It is important to diagnose and address the root cause of the issue to prevent further issues.

8. Are there any recalls or technical service bulletins related to OBDII code B1C19 RAM?

It is recommended to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code. Updates or repairs may be covered under warranty or a recall program.

9. Can extreme temperatures or weather conditions trigger OBDII code B1C19 RAM?

While extreme temperatures or weather conditions may not directly trigger this specific code, environmental factors can sometimes exacerbate underlying electrical issues that lead to the fault code. Ensure proper maintenance and protection of the vehicle's electrical components.

10. Will OBDII code B1C19 RAM affect the overall performance of the vehicle?

This code is primarily related to the passenger active headrest control circuit and may not directly impact the overall performance of the vehicle. However, unresolved electrical issues can potentially affect other systems, so it is important to address the code promptly.