B1D9B Jeep 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 Jeep 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 Jeep 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 Jeep?
- Seat Track damaged or Obstructed
- Seat standardization routine not performed
- Faulty Memory Seat Module-Driver (MSMD)
How to Fix the DTC B1D9B Jeep?
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 Jeep 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 Jeep Code
1. What are the common symptoms of OBDII code B1D9B in a Jeep related to the seat horizontal front stop not learned or missing calibration?
The common symptoms include the power seat not moving correctly or stopping abruptly, abnormal seat positioning, and potential issues with seat adjustment controls.
2. What are the possible causes of OBDII code B1D9B in a Jeep indicating the seat horizontal front stop not learned or missing calibration?
Possible causes include a faulty seat control module, damaged seat motors, wiring issues, calibration errors, or a need for reprogramming.
3. How can I diagnose the OBDII code B1D9B in a Jeep for the seat horizontal front stop not learned or missing calibration?
Diagnosis involves using a professional OBDII scanner to retrieve the specific error code, checking the seat control module for any faults, inspecting the seat motors and wiring for damage, and verifying calibration settings.
4. Can I repair OBDII code B1D9B in a Jeep related to the seat horizontal front stop not learned or missing calibration on my own?
While some basic troubleshooting like checking for loose connections or blown fuses is possible, resolving calibration or module programming issues may require specialized tools and expertise, best handled by a professional mechanic.
5. Are there any temporary fixes I can try for OBDII code B1D9B in a Jeep until I can get it repaired?
You can try resetting the seat module by disconnecting the car battery for a few minutes and reconnecting it, which may resolve temporary glitches. However, it is recommended to address the root cause promptly to avoid further issues.
6. Is it safe to drive my Jeep with OBDII code B1D9B indicating seat calibration issues?
It is generally safe to drive the vehicle if the seat is in a comfortable and secure position. However, it is crucial to address the problem as soon as possible to prevent potential hazards or discomfort while driving.
7. How much does it typically cost to repair OBDII code B1D9B in a Jeep related to seat calibration problems?
The cost of repair can vary depending on the exact cause of the issue, parts needed, and labor rates. It is advisable to get a diagnostic from a mechanic to determine an accurate estimate.
8. Can OBDII code B1D9B in a Jeep be triggered by a one-time glitch or does it indicate a persistent problem?
While occasional glitches can trigger the code temporarily, if the issue persists or recurs after resetting, it likely indicates an ongoing problem that needs attention.
9. Will ignoring OBDII code B1D9B related to seat calibration in a Jeep lead to more severe issues over time?
Ignoring the code may result in further malfunctioning of the power seat system, potential safety concerns, or discomfort while driving. It is best to address the problem promptly to avoid escalating issues.
10. How long does it typically take to repair OBDII code B1D9B in a Jeep caused by seat calibration problems?
The repair time can vary based on the complexity of the issue, availability of parts, and the workload of the repair shop. It is recommended to consult with a technician to get a more accurate timeframe for the repair.
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