B1D84 Chrysler Code - Seat Rear Vertical Motor Control Performance Or Incorrect Operation
Quick Answer
The Memory System is made up of the Memory Seat Module-Driver (MSMD), Memory Switch, Driver Seat Switch and multiple Seat Motors. Common causes include Faulty Driver Rear Vertical Seat Adjuster Motor, Driver Rear Vertical Seat Adjuster Motor harness is open or shorted, Driver Rear Vertical Seat Adjuster Motor 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
- B1D84 Chrysler indicates Seat Rear Vertical Motor Control Performance Or Incorrect Operation.
- Common causes
- Common causes include Faulty Driver Rear Vertical Seat Adjuster Motor, Driver Rear Vertical Seat Adjuster Motor harness is open or shorted, Driver Rear Vertical Seat Adjuster Motor 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 B1D84 Chrysler Description
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 Memory Switch is a Mux switch that is used to set and recall the seat 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 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 positions for that particular selection and return the seat 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.
What are the Possible Causes of the DTC B1D84 Chrysler?
- Faulty Driver Rear Vertical Seat Adjuster Motor
- Driver Rear Vertical Seat Adjuster Motor harness is open or shorted
- Driver Rear Vertical Seat Adjuster Motor circuit poor electrical connection
- Faulty Memory Seat Module-Driver (MSMD)
How to Fix the DTC B1D84 Chrysler?
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 B1D84 Chrysler 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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Frequently Asked Questions about B1D84 Chrysler Code
1. What does the OBDII code B1D84 mean on a Chrysler?
The code B1D84 indicates a performance or incorrect operation issue with the rear vertical seat motor control system.
2. What are the common symptoms of the B1D84 code?
Symptoms may include the rear seat vertical adjustment not working, unusual noise from the seat motor, or the seat not moving to the desired position.
3. What causes the B1D84 code to appear?
Potential causes include a malfunctioning rear vertical seat motor, faulty wiring or connections, or a problem with the seat control module.
4. Can I still drive my car with the B1D84 code?
Yes, the B1D84 code does not affect drivability, but it may limit the functionality of the seat adjustment.
5. How do I diagnose the B1D84 code?
Start by inspecting the seat motor, wiring, and connectors for damage or loose connections. Use a scan tool to verify the code and check for related issues.
6. What repairs are typically needed to fix the B1D84 code?
Repairs may include replacing the rear vertical seat motor, repairing damaged wiring or connectors, or reprogramming or replacing the seat control module.
7. How much does it cost to fix the B1D84 code?
The repair cost can vary but typically ranges from $100 to $500, depending on whether the motor or control module needs replacement.
8. Can a blown fuse cause the B1D84 code?
It’s possible if the fuse for the seat motor circuit is blown, but this code usually points to a more specific motor or control issue.
9. Will clearing the code fix the B1D84 issue?
Clearing the code may temporarily remove it, but the issue will likely return unless the underlying problem is addressed.
10. Can I fix the B1D84 code myself?
If you have basic mechanical skills, you can inspect and potentially fix wiring issues or replace the motor, but complex repairs like module reprogramming may require professional assistance.
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