AutoCodes – Dodge – B2181 Dodge

B2181 Dodge Code - Heated Seat Module Power Supply Low

Quick Answer

This Diagnostic Trouble Code (DTC) is set immediately if the Heated Seat Module detects voltage under 10 volts on the Fused Ignition Switch Output (Run) circuit. Common causes include Faulty Heated Seat Module, Heated Seat Module harness is open or shorted, Heated Seat Module 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: B2181 Dodge indicates Heated Seat Module Power Supply Low.
Common causes: Common causes include Faulty Heated Seat Module, Heated Seat Module harness is open or shorted, Heated Seat Module 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 691

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 Sep 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2181 Dodge Description

This Diagnostic Trouble Code (DTC) is set immediately if the Heated Seat Module detects voltage under 10 volts on the Fused Ignition Switch Output (Run) circuit.

OBDII Code B2181 Dodge - Heated Seat Module Power Supply Low - AutoCodes.com — B2181 Dodge Code - Heated Seat Module Power Supply Low

What does this mean?

What are the Possible Causes of the DTC B2181 Dodge?

Faulty Heated Seat Module
Heated Seat Module harness is open or shorted
Heated Seat Module circuit poor electrical connection

How to Fix the DTC B2181 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 B2181 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 B2181 Dodge code?

Need more information on how to fix the B2181 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2181 Dodge 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 B2181 Dodge Code

1. What does the OBDII code B2181 mean on a Dodge vehicle?

The code B2181 indicates that the Heated Seat Module is experiencing a power supply issue, specifically a voltage that is lower than required for proper operation.

2. What are the symptoms of the B2181 code in a Dodge?

Common symptoms include heated seats not functioning, intermittent operation of the heated seats, or no response when the heated seat button is pressed.

3. What causes the B2181 code to appear?

The most common causes include a blown fuse, faulty wiring or connectors, a failing Heated Seat Module, or issues with the vehicle's battery or charging system.

4. How do you diagnose the B2181 code in a Dodge?

Diagnosis typically involves checking the heated seat fuse, inspecting wiring and connectors for damage or corrosion, testing the Heated Seat Module, and ensuring the battery voltage is within the correct range.

5. Can a low vehicle battery cause the B2181 code?

Yes, a weak or low battery can cause insufficient power to the Heated Seat Module, triggering the B2181 code.

6. Is it safe to drive with the B2181 code active?

Yes, it is safe to drive, but the heated seats may not function properly until the issue is resolved.

7. How can I fix the B2181 code on my Dodge?

Repairs may include replacing the blown fuse, repairing or replacing damaged wiring or connectors, or replacing the Heated Seat Module if it is defective.

8. Can the B2181 code clear itself after repairs?

In some cases, the code may clear after fixing the issue, but you may need to use an OBDII scanner to manually clear the code.

9. How much does it cost to repair the B2181 code?

Repair costs can vary depending on the issue; replacing a fuse is inexpensive, while replacing the Heated Seat Module can be more expensive, ranging from $100 to $500 or more.

10. Can I fix the B2181 code myself?

If the issue is a simple blown fuse or loose connection, it can often be fixed at home. However, diagnosing and repairing module or wiring issues may require professional assistance.