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Engine-Codes – Dodge – B2847 Dodge

B2847 Dodge Code - Driver Blind Spot Warning Light Control Circuit High

Quick Answer

The B2847 code indicates a malfunction in the Driver Blind Spot Warning Light Control Circuit, specifically pointing to a high voltage condition within the circuit. Common causes include Faulty blind spot monitoring sensors that are unable to communicate properly with the control module, Damaged or frayed wiring in the blind spot warning circuit, leading to high resistance or short circuits, A malfunctioning control module that processes the signals from the sensors. 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
B2847 Dodge indicates Driver Blind Spot Warning Light Control Circuit High.
Common causes
Common causes include Faulty blind spot monitoring sensors that are unable to communicate properly with the control module, Damaged or frayed wiring in the blind spot warning circuit, leading to high resistance or short circuits, A malfunctioning control module that processes the signals from the sensors.
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 Oct 16, 2024
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Code B2847 Dodge Description

The B2847 code indicates a malfunction in the Driver Blind Spot Warning Light Control Circuit, specifically pointing to a high voltage condition within the circuit. This code is part of the vehicle's advanced driver assistance systems (ADAS), which are designed to enhance safety by monitoring the vehicle's surroundings. The blind spot monitoring system uses sensors, typically located in the rear corners of the vehicle, to detect vehicles that may be in the driver's blind spots. When the system detects a vehicle in these areas, it activates warning lights on the side mirrors to alert the driver.

OBDII Code B2847 Dodge - Driver Blind Spot Warning Light Control Circuit High
B2847 Dodge Code - Driver Blind Spot Warning Light Control Circuit High

Common Causes of B2847 Dodge

  1. Faulty blind spot monitoring sensors that are unable to communicate properly with the control module.
  2. Damaged or frayed wiring in the blind spot warning circuit, leading to high resistance or short circuits.
  3. A malfunctioning control module that processes the signals from the sensors.
  4. Corrosion or poor connections at the wiring harness connectors, affecting the electrical flow.
  5. Software issues or glitches in the vehicle's onboard computer systems that may require reprogramming.

Symptoms of B2847 Dodge

  1. Blind spot warning lights on the side mirrors do not illuminate when a vehicle is detected in the blind spot.
  2. The dashboard warning light for the blind spot monitoring system is illuminated.
  3. Intermittent or erratic operation of the blind spot monitoring system.
  4. Increased difficulty in safely changing lanes due to lack of warning signals.
  5. Other related warning codes may appear in the vehicle's diagnostic system.

How to Fix B2847 Dodge

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the B2847 code and check for any additional codes that may provide more context for the issue.
  2. Visual Inspection: Conduct a thorough visual inspection of the wiring and connectors associated with the blind spot monitoring system for any signs of damage, corrosion, or loose connections.
  3. Sensor Testing: Test the blind spot monitoring sensors for functionality using a multimeter to check for proper voltage and resistance levels.
  4. Repair or Replace Components: Based on the findings from the inspection and testing, repair any damaged wiring or connectors, and replace faulty sensors or the control module as necessary.
  5. System Calibration: After repairs, recalibrate the blind spot monitoring system to ensure it is functioning correctly and performing as intended.

Cost to Fix B2847 Dodge

The cost to repair the B2847 code can vary widely based on the specific issue identified during diagnosis. On average, repairs can range from $100 to $600. This estimate includes the cost of parts and labor, with parts such as sensors typically costing between $50 and $300 each, depending on the make and model of the vehicle. Labor costs can vary significantly; most auto repair shops charge between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. It's advisable to check local rates and obtain multiple quotes for a more precise estimate based on your specific situation.

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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 B2847 Dodge Code

1. What does OBDII code B2847 mean on a Dodge?

Code B2847 indicates a high voltage issue in the Driver Blind Spot Warning Light Control Circuit, which is part of the blind spot monitoring system.

2. What are the symptoms of code B2847 in a Dodge vehicle?

Common symptoms include the blind spot warning light not functioning, the system being disabled, or an illuminated check engine or warning light.

3. What causes the B2847 code in Dodge vehicles?

Possible causes include a faulty blind spot warning light, damaged wiring or connectors in the circuit, or a malfunctioning blind spot monitor control module.

4. Can I drive my Dodge with a B2847 code?

Yes, you can still drive the vehicle, but the blind spot monitoring system may not work, increasing your risk in traffic. It’s best to address the issue promptly.

5. How do I diagnose the B2847 code on my Dodge?

Start by inspecting the wiring and connectors for damage or loose connections. Then, test the blind spot warning light and control module for faults using a multimeter or scan tool.

6. How do I fix the B2847 code in a Dodge vehicle?

Repair or replace any damaged wiring or connectors, replace a faulty blind spot warning light, or replace the blind spot monitoring control module if necessary.

7. How much does it cost to repair the B2847 code on a Dodge?

Repair costs can range from $100 to $500, depending on whether you need simple wiring repairs or a replacement control module.

8. Can a low battery cause the B2847 code in my Dodge?

While unlikely, a low or failing battery can sometimes cause electrical issues, so it’s worth checking the battery voltage and health.

9. Does the B2847 code require reprogramming after repairs?

In some cases, replacing the blind spot monitoring control module may require reprogramming or calibration by a professional.

10. Can I clear the B2847 code without fixing it?

You can clear the code with an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.

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