AutoCodes – Generic – B2446

B2446 Code - RESCU/VEMS Input Circuit Open

Quick Answer

The Body Control Module (BCM) monitors the Road Emergency Services Communications Unit (RESCU)/Vehicle Emergency Messaging System (VEMS). Common causes include Faulty Road Emergency Services Communications Unit (RESCU)/Vehicle Emergency Messaging System (VEMS), RESCU/VEMS harness is open or shorted, RESCU/VEMS 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: B2446 indicates RESCU/VEMS Input Circuit Open.
Common causes: Common causes include Faulty Road Emergency Services Communications Unit (RESCU)/Vehicle Emergency Messaging System (VEMS), RESCU/VEMS harness is open or shorted, RESCU/VEMS 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 3,860

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 Dec 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2446 Description

The Body Control Module (BCM) monitors the Road Emergency Services Communications Unit (RESCU)/Vehicle Emergency Messaging System (VEMS). The BCM sets the OBDII code when the RESCU/VEMS is not to factory specifications.

OBDII Code B2446 - RESCU/VEMS Input Circuit Open - AutoCodes.com — B2446 Code - RESCU/VEMS Input Circuit Open

What does this mean?

What are the Possible Causes of the DTC B2446?

Faulty Road Emergency Services Communications Unit (RESCU)/Vehicle Emergency Messaging System (VEMS)
RESCU/VEMS harness is open or shorted
RESCU/VEMS circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2446?

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 B2446 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 B2446 code?

Need more information on how to fix the B2446 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2446 code diagnosed by a professional: Find a repair shop in your area

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 B2446 Code

1. What are the common symptoms of OBDII code B2446 (RESCU/VEMS Input Circuit Open)?

- Common symptoms include illumination of the check engine light, poor engine performance, and potential issues with the vehicle's ignition system.

2. What does the B2446 code indicate about the RESCU/VEMS Input Circuit?

- The code indicates that there is an open circuit in the RESCU/VEMS input, which can disrupt communication between the vehicle's systems.

3. What are the possible causes of the RESCU/VEMS Input Circuit Open code B2446?

- Possible causes include damaged wiring or connectors, a faulty RESCU/VEMS module, a blown fuse, or a malfunctioning ignition switch.

4. How can I diagnose the cause of the B2446 code related to the RESCU/VEMS Input Circuit?

- Diagnose the issue by visually inspecting the wiring and connectors, checking the RESCU/VEMS module for proper functioning, testing fuses, and verifying the ignition switch operation.

5. Is it safe to continue driving with the B2446 code triggered?

- It is not recommended to continue driving with the B2446 code triggered as it can lead to further damage to the vehicle's systems and components.

6. Can I repair the RESCU/VEMS Input Circuit Open issue myself?

- Depending on your automotive repair skills, you may be able to address the issue yourself by identifying and repairing the open circuit, replacing damaged components, or resetting the code with an OBDII scanner.

7. How much does it typically cost to repair the RESCU/VEMS Input Circuit Open issue associated with code B2446?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $500, including parts and labor.

8. Will resetting the B2446 code make it go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the RESCU/VEMS Input Circuit Open is not addressed, the code is likely to reappear.

9. Can a faulty RESCU/VEMS module be repaired, or does it need to be replaced?

- In most cases, a faulty RESCU/VEMS module will need to be replaced rather than repaired to ensure proper functionality and system communication.

10. Are there any preventive maintenance steps I can take to avoid encountering the B2446 code in the future?

- Regularly inspecting and maintaining the vehicle's wiring, connectors, fuses, and ignition system can help prevent issues like the RESCU/VEMS Input Circuit Open code B2446 from occurring.