B2854 Dodge Code - Implausible Data Received From AHBM
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) receives incorrect information from the Automatic High Beam Module (AHBM). Common causes include Faulty Automatic High Beam Module (AHBM), Automatic High Beam Module (AHBM) harness is open or shorted, Automatic High Beam Module (AHBM) 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
- B2854 Dodge indicates Implausible Data Received From AHBM.
- Common causes
- Common causes include Faulty Automatic High Beam Module (AHBM), Automatic High Beam Module (AHBM) harness is open or shorted, Automatic High Beam Module (AHBM) 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.
Code B2854 Dodge Description
What are the Possible Causes of the DTC B2854 Dodge?
- Faulty Automatic High Beam Module (AHBM)
- Automatic High Beam Module (AHBM) harness is open or shorted
- Automatic High Beam Module (AHBM) circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B2854 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 B2854 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 B2854 Dodge code?
Need more information on how to fix the B2854 Dodge code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2854 Dodge code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B2854 Dodge Code
1. What does the OBDII code B2854 mean on a Dodge vehicle?
The B2854 code indicates "Implausible Data Received From AHBM," meaning the Active Headlight Beam Module (AHBM) is sending data that does not match expected parameters.
2. What are the common symptoms of the B2854 code?
Symptoms may include malfunctioning adaptive headlights, a dashboard warning light, or issues with headlight aiming.
3. What causes the B2854 code to appear?
Common causes include a faulty AHBM, wiring issues, software glitches, or communication errors between the AHBM and other control modules.
4. Can the B2854 code cause serious driving issues?
While it may not cause immediate safety issues, it can impair visibility at night if adaptive headlights are not functioning properly.
5. How do you diagnose the B2854 code?
Diagnosis typically involves scanning for additional trouble codes, inspecting the AHBM and related wiring, and testing the communication network between modules.
6. Can a dead battery trigger the B2854 code?
Yes, a weak or dead battery can cause communication errors, potentially triggering this code.
7. How do you fix the B2854 code?
Repairs may involve replacing the AHBM, repairing damaged wiring, updating module software, or clearing the code after addressing the underlying issue.
8. Is it safe to drive with the B2854 code?
It is generally safe to drive, but adaptive headlight functions may be limited, reducing nighttime visibility.
9. How much does it cost to fix the B2854 code on a Dodge vehicle?
Repair costs can range from $150 to $600 depending on whether the AHBM needs replacement or if it’s a simpler issue like wiring repair.
10. Can you clear the B2854 code without repairing the issue?
Clearing the code without fixing the root cause may temporarily remove the warning, but the issue will likely return.
Discuss the causes and fixes for B2854 Dodge OBDII Code
Code B2854 Dodge comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
