AutoCodes – Jeep – B1D7F Jeep

B1D7F Jeep Code - Seat Front Vertical Motor Control Circuit Performance

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 Driver Front Vertical Seat Adjuster Motor, Driver Front Vertical Seat Adjuster Motor harness is open or shorted, Driver Front 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: B1D7F Jeep indicates Seat Front Vertical Motor Control Circuit Performance.
Common causes: Common causes include Faulty Driver Front Vertical Seat Adjuster Motor, Driver Front Vertical Seat Adjuster Motor harness is open or shorted, Driver Front 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.

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Code Popularity 917

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 Sep 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1D7F Jeep 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 B1D7F Jeep - Seat Front Vertical Motor Control Circuit Performance - AutoCodes.com — B1D7F Jeep Code - Seat Front Vertical Motor Control Circuit Performance

What does this mean?

What are the Possible Causes of the DTC B1D7F Jeep?

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

How to Fix the DTC B1D7F 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 B1D7F 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.

Need more information about the B1D7F Jeep code?

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Need Help with the Code?

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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 B1D7F Jeep Code

1. What are common symptoms of the OBDII code B1D7F in a Jeep related to the Seat Front Vertical Motor Control Circuit?

- Common symptoms include the front seat not moving vertically, erratic seat movement, or complete failure of the vertical adjustment.

2. What are possible causes of the B1D7F code on a Jeep?

- The code B1D7F may be triggered by a faulty front vertical motor, damaged wiring or connectors, a blown fuse, or issues with the control module.

3. How can I diagnose the Seat Front Vertical Motor Control Circuit issue in my Jeep?

- To diagnose the problem, you can start by checking the fuse related to the front vertical motor, inspecting the wiring and connectors for any damage, and testing the motor itself for proper functionality.

4. Can I drive my Jeep with the B1D7F code present?

- It is not advisable to drive your Jeep with the B1D7F code present, as it can lead to discomfort while driving and may cause safety concerns if the seat is stuck in an uncomfortable position.

5. How can I repair the Seat Front Vertical Motor Control Circuit issue in my Jeep?

- Repairing the issue may involve replacing the faulty front vertical motor, repairing or replacing damaged wiring or connectors, or resetting the control module to clear the code.

6. Will resetting the OBDII code B1D7F in my Jeep fix the issue permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue such as a faulty motor or wiring is not addressed, the code is likely to reappear.

7. Is the Seat Front Vertical Motor Control Circuit issue covered under Jeep's warranty?

- The coverage of this issue under warranty may vary depending on the warranty status of your Jeep and the specific terms and conditions of the warranty agreement.

8. Can I attempt to fix the B1D7F code in my Jeep myself, or should I seek professional help?

- If you have experience with automotive electrical systems and wiring, you may attempt to diagnose and repair the issue yourself. However, if you are unsure or uncomfortable with the process, it is recommended to seek professional help.

9. Are there any preventive measures I can take to avoid the B1D7F code in my Jeep?

- Regularly checking the functionality of your front seat adjustments, avoiding overloading the seat, and ensuring proper maintenance of the electrical components can help prevent the occurrence of the B1D7F code.

10. How long does it typically take to repair the Seat Front Vertical Motor Control Circuit issue in a Jeep?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. It can range from a quick fix such as replacing a fuse to a more involved repair like replacing the motor, which may take a few hours.