B1D9B RAM Code - Seat Horizontal Front Stop Not Learned Or Missing Calibration
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 Seat Track damaged or Obstructed, Seat standardization routine not performed, Faulty Memory Seat Module-Driver (MSMD). 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
- B1D9B RAM indicates Seat Horizontal Front Stop Not Learned Or Missing Calibration.
- Common causes
- Common causes include Seat Track damaged or Obstructed, Seat standardization routine not performed, Faulty Memory Seat Module-Driver (MSMD).
- 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 B1D9B RAM 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 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.
What are the Possible Causes of the DTC B1D9B RAM?
- Seat Track damaged or Obstructed
- Seat standardization routine not performed
- Faulty Memory Seat Module-Driver (MSMD)
How to Fix the DTC B1D9B RAM?
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 B1D9B RAM 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 B1D9B RAM Code
1. What are the common symptoms of OBDII code B1D9B RAM related to Seat Horizontal Front Stop Not Learned Or Missing Calibration?
The common symptoms include incorrect seat positioning, inability to adjust seat horizontally, and possibly a warning light on the dashboard.
2. What could be the possible causes of OBDII code B1D9B RAM indicating Seat Horizontal Front Stop Not Learned Or Missing Calibration?
Possible causes include a faulty seat control module, damaged seat tracks, wiring issues, or a need for seat recalibration due to recent repairs or battery disconnect.
3. How can I diagnose the issue related to OBDII code B1D9B RAM for Seat Horizontal Front Stop Not Learned Or Missing Calibration?
Diagnose the issue by checking the seat controls for proper function, inspecting the seat tracks for any obstructions, and using an OBDII scanner to retrieve and reset the error code.
4. Is it safe to drive with OBDII code B1D9B RAM triggered for Seat Horizontal Front Stop Not Learned Or Missing Calibration?
It is generally safe to drive, but the seat adjustment functionality may be limited. It is recommended to address the issue promptly to avoid discomfort and potential safety hazards.
5. Can I reset OBDII code B1D9B RAM for Seat Horizontal Front Stop Not Learned Or Missing Calibration without professional help?
You can attempt to reset the code by disconnecting the car battery for a few minutes or using an OBDII scanner to clear the error. If the issue persists, professional diagnostics may be required.
6. How can I repair OBDII code B1D9B RAM for Seat Horizontal Front Stop Not Learned Or Missing Calibration at home?
You can attempt to recalibrate the seat position using the vehicle's manual or online guides, check and clean the seat tracks, and ensure all wiring connections are secure before seeking further assistance.
7. Will fixing OBDII code B1D9B RAM for Seat Horizontal Front Stop Not Learned Or Missing Calibration be expensive?
The cost of repair can vary depending on the specific cause of the issue. Simple fixes like recalibration or checking connections may be inexpensive, while replacing the seat control module or tracks can be more costly.
8. What should I do if OBDII code B1D9B RAM persists even after attempting basic repairs?
If the code persists, despite your efforts, it is recommended to consult a professional mechanic or dealership for a thorough diagnosis and repair to ensure the issue is resolved correctly.
9. Can OBDII code B1D9B RAM for Seat Horizontal Front Stop Not Learned Or Missing Calibration affect other vehicle functions?
While primarily related to seat adjustment, unresolved issues with this code may indicate underlying electrical or module problems that could potentially impact other vehicle functions. Regular maintenance and prompt repairs are advisable.
10. Is there a way to prevent OBDII code B1D9B RAM from occurring in the future?
Regularly checking and maintaining the seat adjustment system, avoiding sudden battery disconnects, and addressing any seat-related issues promptly can help prevent the recurrence of OBDII code B1D9B RAM related to Seat Horizontal Front Stop Not Learned Or Missing Calibration.
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