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Engine-Codes – Generic – B1C17

B1C17 Code - Passenger Active Headrest Control Circuit

Quick Answer

The B1C17 code indicates a problem with the passenger active headrest control circuit in the vehicle. Common causes include Wiring issues such as a short circuit or open circuit, A faulty sensor that fails to detect a rear-end collision, A malfunctioning control module that does not send the signal to deploy the headrest. 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
B1C17 indicates Passenger Active Headrest Control Circuit.
Common causes
Common causes include Wiring issues such as a short circuit or open circuit, A faulty sensor that fails to detect a rear-end collision, A malfunctioning control module that does not send the signal to deploy the headrest.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B1C17 Description

The B1C17 code indicates a problem with the passenger active headrest control circuit in the vehicle. Active headrests are a safety feature that automatically moves the headrest forward in the event of a rear-end collision to reduce the risk of whiplash and neck injuries for the occupants. The control circuit is responsible for activating this feature when needed.

OBDII Code B1C17 - Passenger Active Headrest Control Circuit
B1C17 Code - Passenger Active Headrest Control Circuit

Common Causes of B1C17

  1. Wiring issues such as a short circuit or open circuit.
  2. A faulty sensor that fails to detect a rear-end collision.
  3. A malfunctioning control module that does not send the signal to deploy the headrest.
  4. Mechanical issues with the headrest mechanism itself.
  5. Corrosion or damage to the connectors in the circuit.

Symptoms of B1C17

  1. The passenger active headrest does not deploy in a rear-end collision.
  2. The airbag warning light may illuminate on the dashboard.
  3. The headrest may move unexpectedly or be stuck in a certain position.
  4. The headrest may make unusual noises when activated.
  5. The vehicle may fail a safety inspection due to the inactive active headrest system.

How to Fix B1C17

  1. Begin by visually inspecting the wiring and connectors for any visible damage or corrosion. Repair or replace any damaged components.
  2. Test the sensors and control module using a multimeter to check for proper functionality. Replace any faulty components.
  3. If the issue persists, remove the headrest and inspect the mechanism for any mechanical problems. Repair or replace as necessary.
  4. Clear the fault codes using a scan tool and test the active headrest system to ensure it deploys properly in a controlled environment.
  5. Reassemble any components that were removed during the repair process and perform a final test to confirm the issue has been resolved.

Cost to Fix B1C17

The cost of repairing a passenger 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 could range from $150 to $400. Overall, the total repair cost could range from $250 to $700. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle make and model, the location of the repair shop, and the technician's labor rates. It's recommended to consult with a trusted mechanic for a more accurate cost estimate.

What does this mean?

Tech Notes for B1C17

B1C11-11 PASSENGER ACTIVE HEADREST CONTROL CIRCUIT SHORT TO GROUND
B1C11-12 PASSENGER ACTIVE HEADREST CONTROL CIRCUIT SHORT TO BATTERY
B1C11-13 PASSENGER 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 Passenger Signal circuit.

Need more information about the B1C17 code?

Need more information on how to fix the B1C17 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Code B1C17 Information for Specific Makes

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 B1C17 Code

1. What are the common symptoms of OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- The common symptoms include a warning light on the dashboard, inactive or malfunctioning active headrests, and potential issues with the headrest control system.

2. What are the potential causes of OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- The code B1C17 can be triggered by wiring problems, a faulty headrest control module, damaged connectors, or issues with the headrest motor or sensor.

3. How can I diagnose the OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- Diagnosis involves using an OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors for damage, testing the headrest control module, and checking the functionality of the headrest motor and sensor.

4. Can I drive my vehicle with OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- It is generally safe to drive the vehicle with this code, but it's recommended to have the issue diagnosed and repaired promptly to ensure the proper functioning of the active headrest system.

5. How can I repair OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- Repair options may include repairing or replacing damaged wiring, connectors, the headrest control module, motor, or sensor, depending on the specific cause of the issue.

6. Is it possible to reset OBDII code B1C17 (Passenger Active Headrest Control Circuit) without repairs?

- Resetting the code without addressing the underlying issue may temporarily turn off the warning light, but the problem will likely reoccur until the root cause is fixed.

7. Can a DIY enthusiast fix OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- Depending on the specific cause, some DIY enthusiasts may be able to address the issue by following repair guides, but complex electrical problems may require professional diagnosis and repair.

8. Are there any safety concerns associated with OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- Malfunctioning active headrests can impact occupant safety during a collision, as they are designed to reduce the risk of whiplash injuries. It's important to address this code promptly.

9. How much does it typically cost to repair OBDII code B1C17 (Passenger Active Headrest Control Circuit)?

- The cost of repair can vary widely depending on the specific cause of the issue, parts needed, labor rates, and whether the repair is done at a dealership or an independent repair shop.

10. Can OBDII code B1C17 (Passenger Active Headrest Control Circuit) affect the overall performance of the vehicle?

- While the code itself may not affect the performance of the vehicle, addressing the underlying issue promptly is important to ensure the proper operation of the active headrest system and overall vehicle safety.

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