B1D84 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 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 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?
- 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?
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 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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Information for Specific Makes
- B1D84 Chrysler — Seat Rear Vertical Motor Control Performance Or Incorrect Operation
- B1D84 Dodge — Seat Rear Vertical Motor Control Performance Or Incorrect Operation
- B1D84 Jeep — Seat Rear Vertical Motor Control Performance Or Incorrect Operation
- B1D84 RAM — Seat Rear Vertical Motor Control Performance Or Incorrect Operation
Frequently Asked Questions about B1D84 Code
1. What are the common symptoms of OBDII code B1D84 (Seat Rear Vertical Motor Control Performance Or Incorrect Operation)?
- Common symptoms include erratic movement of the rear seat, inability to adjust the vertical position of the seat, or unusual noises coming from the seat motor.
2. What are the possible causes of OBDII code B1D84?
- The code B1D84 can be triggered by a faulty rear vertical motor, damaged wiring harness, blown fuse, or issues with the seat control module.
3. How can I diagnose the issue related to OBDII code B1D84?
- To diagnose the problem, you can perform a visual inspection of the seat motor and wiring, check the seat adjustment controls, and use a diagnostic scan tool to retrieve fault codes.
4. Is it safe to drive with OBDII code B1D84 active?
- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid potential discomfort or inconvenience from the malfunctioning seat.
5. How can I repair OBDII code B1D84?
- Repair options include replacing the faulty rear vertical motor, repairing or replacing damaged wiring, checking and replacing fuses, or resetting the seat control module.
6. Can I reset OBDII code B1D84 without repairs?
- While you may be able to clear the code temporarily, it is important to address the underlying issue causing the fault code to prevent it from reoccurring.
7. Will OBDII code B1D84 cause other electrical problems in the vehicle?
- In some cases, the issues triggering code B1D84 may affect other electrical components in the vehicle, especially if the fault is related to the seat control module or wiring harness.
8. How much does it typically cost to repair OBDII code B1D84?
- The cost of repairing OBDII code B1D84 can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.
9. Can I fix OBDII code B1D84 myself, or do I need to take it to a professional mechanic?
- If you have experience working with automotive electrical systems and diagnostics, you may be able to address the issue yourself. However, for complex problems or if you are unsure, it is best to consult a professional mechanic.
10. How long does it take to repair OBDII code B1D84?
- The repair time for OBDII code B1D84 can vary depending on the specific cause of the issue and the complexity of the repair. It may take anywhere from a few hours to a full day to complete the necessary repairs.
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