AutoCodes – Generic – B1C19

B1C19 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 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 3,964

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

What does this mean?

What are the Possible Causes of the DTC B1C19?

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?

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 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 code?

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

Need Help with the Code?

Get the B1C19 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1C19 Chrysler — Passenger Active Headrest Control Circuit High
B1C19 Dodge — Passenger Active Headrest Control Circuit High
B1C19 Jeep — Passenger Active Headrest Control Circuit High
B1C19 RAM — Passenger Active Headrest Control Circuit High

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 Code

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

- The common symptoms include the passenger active headrest not deploying properly, the airbag warning light illuminating on the dashboard, and potential issues with the vehicle's safety systems.

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

- The code B1C19 can be triggered by a faulty passenger active headrest control module, damaged wiring or connectors in the control circuit, or a malfunction in the headrest deployment mechanism.

3. How can I diagnose the cause of OBDII code B1C19?

- To diagnose the issue, it is recommended to perform a visual inspection of the wiring and connectors related to the passenger active headrest system, check for any visible damage, and use a diagnostic scanner to retrieve specific error codes.

4. Is it safe to continue driving with OBDII code B1C19 present?

- It is not advisable to continue driving with OBDII code B1C19 unresolved, as it may affect the proper deployment of the passenger active headrest in the event of a collision, potentially compromising passenger safety.

5. Can I reset OBDII code B1C19 to see if it comes back?

- While you can reset the code to see if it returns, it is essential to address the underlying issue causing the code to prevent safety concerns and ensure the proper functioning of the passenger active headrest system.

6. How can I repair OBDII code B1C19?

- Repairing OBDII code B1C19 may involve replacing the faulty passenger active headrest control module, repairing or replacing damaged wiring or connectors, or addressing any issues with the headrest deployment mechanism.

7. Are there any DIY tips for troubleshooting OBDII code B1C19?

- DIY tips for troubleshooting OBDII code B1C19 include checking for loose or damaged connections, ensuring proper power supply to the control module, and consulting the vehicle's service manual for specific diagnostic procedures.

8. Can a professional mechanic help with diagnosing and repairing OBDII code B1C19?

- Yes, a professional mechanic with experience in automotive diagnostics can assist in accurately diagnosing the cause of OBDII code B1C19 and performing the necessary repairs to resolve the issue effectively.

9. Will OBDII code B1C19 affect my vehicle's overall performance?

- While OBDII code B1C19 may not directly impact the vehicle's drivability, it is crucial to address the issue promptly to ensure the proper functioning of the passenger active headrest system and maintain overall safety standards.

10. How long does it typically take to repair OBDII code B1C19?

- The repair time for OBDII code B1C19 can vary depending on the specific cause of the issue, but it may take a few hours to a day for diagnosis, parts replacement, and testing to complete the repair successfully.