AutoCodes – Dodge – B221C Dodge

B221C Dodge Code - Memory Seat Module Internal

Quick Answer

The Memory System is made up of a Memory Seat Module-Driver (MSMD), Memory Switch, Driver Seat Switch, Adjustable Pedal Switch, and multiple Seat Motors and an Adjustable Pedal Motor. Common causes include Faulty Memory Seat Module-Driver (MSMD), Memory Seat Module-Driver (MSMD) harness is open or shorted, Memory Seat Module-Driver (MSMD) 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: B221C Dodge indicates Memory Seat Module Internal.
Common causes: Common causes include Faulty Memory Seat Module-Driver (MSMD), Memory Seat Module-Driver (MSMD) harness is open or shorted, Memory Seat Module-Driver (MSMD) 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 690

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 Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B221C Dodge Description

The Memory System is made up of a Memory Seat Module-Driver (MSMD), Memory Switch, Driver Seat Switch, Adjustable Pedal Switch, and multiple Seat Motors and an Adjustable Pedal Motor. The motors each contain a hall-effect position sensor. The hall-effect position sensor provides feedback to the MSMD in relation to the motors position.
The Driver Seat Switch is a Multiplex (Mux) switch which uses set resistance levels for each switch position. These resistances correspond to different voltages which is monitored by the MSMD over two separate circuits. When a voltage change is detected, the MSMD will command the appropriate Seat motor(s) to move the seat in the requested direction as long as the Driver Seat Switch is held in that direction or its stops have been reached.
The Adjustable Pedal Switch is a three position switch (forward, center, rearward). The MSMD monitors the forward and rearward circuits voltage. If a voltage change is detected, the MSMD will command the Adjustable Pedal motor to move the pedals in the requested direction as long as the Adjustable Pedal Switch is held in that direction or its stops have been reached.
The Memory Switch is a Mux switch that is used to set and recall the seat and pedal positions. When a Memory Switch button is pressed, the Driver Door Module (DDM) detects a voltage change and sends a request over the Controller Area Network (CAN) bus circuit to the MSMD to perform the requested command. If the SET button on the Memory Switch is pressed, followed by the 1 or 2 button, the MSMD will store the seat and pedal positions based on the position inputs received from the hall-effect position sensors. If the 1 or 2 button on the Memory Switch is pressed, the MSMD will recall the stored seat and pedal positions for that particular selection and return the seat and pedals to the stored positions. Memory position may also be recalled using a linked FOBIK transmitter. For driver safety, the MSMD will prevent the memory recall function from being initiated if the transmission gear selector lever is not in the Park position or if the vehicle is moving.

OBDII Code B221C Dodge - Memory Seat Module Internal - AutoCodes.com — B221C Dodge Code - Memory Seat Module Internal

What does this mean?

What are the Possible Causes of the DTC B221C Dodge?

Faulty Memory Seat Module-Driver (MSMD)
Memory Seat Module-Driver (MSMD) harness is open or shorted
Memory Seat Module-Driver (MSMD) circuit poor electrical connection

How to Fix the DTC B221C 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 B221C 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.

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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 B221C Dodge Code

1. What are the common symptoms of OBDII code B221C Dodge (Memory Seat Module Internal)?

- The common symptoms of this code may include malfunctioning memory seat settings, failure of power seat adjustments, or issues with seat position memory.

2. What are the possible causes of the B221C Dodge trouble code?

- The B221C code in a Dodge vehicle is usually triggered by a fault within the memory seat module itself, such as internal module failure or communication errors.

3. How can I diagnose the B221C code related to the Memory Seat Module Internal issue?

- Diagnosis typically involves using a compatible OBDII scanner to retrieve the specific fault code, followed by inspecting the memory seat module for any visible damage or loose connections.

4. Can a DIY enthusiast repair the B221C Dodge code at home?

- Repairing the Memory Seat Module Internal issue often requires expertise in automotive electronics and specialized tools, making it more suitable for professional repair or dealership service.

5. Is it safe to continue driving with the B221C code present in a Dodge vehicle?

- While the B221C code may not directly affect the drivability of the vehicle, it is recommended to address the underlying issue promptly to prevent further damage or inconvenience.

6. Are there any temporary fixes or workarounds for the B221C trouble code?

- Temporary fixes like resetting the memory seat module or checking for loose connections may sometimes resolve the B221C code temporarily, but a permanent solution would involve addressing the root cause.

7. What is the typical cost of repairing the B221C Dodge code at a dealership or repair shop?

- Repair costs for the Memory Seat Module Internal issue can vary depending on the extent of the damage and the labor rates of the service provider, but it may involve module replacement or reprogramming.

8. Can the B221C code be related to other electrical problems in the vehicle?

- While the B221C code specifically points to issues with the memory seat module, it is essential to check for any underlying electrical problems that may be affecting the module's operation.

9. How long does it take to repair the B221C Dodge trouble code?

- The repair time for the B221C code can vary based on the complexity of the issue and the availability of parts. It is advisable to consult with a professional technician for a more accurate estimate.

10. Is it necessary to clear the B221C trouble code after repairing the Memory Seat Module Internal issue?

- Once the underlying problem causing the B221C code is fixed, it is recommended to clear the code using an OBDII scanner to reset the vehicle's system and ensure proper functionality.