B1D87 Jeep Code - Seat Backrest Motor Control Circuit Peformance
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 Recliner Seat Adjuster Motor, Driver Recliner Seat Adjuster Motor harness is open or shorted, Driver Recliner 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
- B1D87 Jeep indicates Seat Backrest Motor Control Circuit Peformance.
- Common causes
- Common causes include Faulty Driver Recliner Seat Adjuster Motor, Driver Recliner Seat Adjuster Motor harness is open or shorted, Driver Recliner 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 B1D87 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 B1D87 Jeep?
- Faulty Driver Recliner Seat Adjuster Motor
- Driver Recliner Seat Adjuster Motor harness is open or shorted
- Driver Recliner Seat Adjuster Motor circuit poor electrical connection
- Faulty Memory Seat Module-Driver (MSMD)
How to Fix the DTC B1D87 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 B1D87 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 B1D87 Jeep Code
1. What are common symptoms of OBDII code B1D87 in a Jeep related to the Seat Backrest Motor Control Circuit?
- Common symptoms include the seat backrest motor not moving, erratic movement of the seat backrest, or the seat backrest getting stuck in one position.
2. What are some possible causes of OBDII code B1D87 in a Jeep?
- Potential causes include a faulty seat backrest motor, damaged wiring or connectors in the circuit, or a malfunctioning control module.
3. How can I diagnose the Seat Backrest Motor Control Circuit issue in my Jeep triggering code B1D87?
- Diagnose the issue by checking the wiring and connectors for any damage, testing the seat backrest motor for proper functionality, and scanning the control module for fault codes.
4. Is it safe to drive my Jeep with OBDII code B1D87 related to the Seat Backrest Motor Control Circuit?
- It is not recommended to drive the vehicle with this issue as it may lead to discomfort or potential safety hazards if the seat backrest cannot be adjusted properly.
5. Can I reset the OBDII code B1D87 in my Jeep related to the Seat Backrest Motor Control Circuit?
- Resetting the code may temporarily clear the warning light, but it is important to diagnose and repair the underlying issue to prevent the code from reappearing.
6. How can I repair OBDII code B1D87 in my Jeep associated with the Seat Backrest Motor Control Circuit?
- Repair options may include replacing the seat backrest motor, repairing damaged wiring or connectors, or reprogramming/resetting the control module.
7. Are there any DIY tips for fixing OBDII code B1D87 related to the Seat Backrest Motor Control Circuit in a Jeep?
- DIY tips include checking for loose connections, inspecting the fuse related to the seat backrest motor, and consulting the vehicle's service manual for troubleshooting steps.
8. Can a malfunction in the Seat Backrest Motor Control Circuit affect other systems in my Jeep?
- While the issue primarily affects the seat backrest motor, electrical problems in this circuit could potentially impact other electronic systems in the vehicle.
9. How much does it typically cost to repair OBDII code B1D87 in a Jeep due to Seat Backrest Motor Control Circuit problems?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
10. Will ignoring OBDII code B1D87 related to the Seat Backrest Motor Control Circuit cause further damage to my Jeep?
- Ignoring the issue could lead to discomfort while driving, potential safety concerns, and may cause additional damage to the seat adjustment system over time.
Discuss the causes and fixes for B1D87 Jeep OBDII Code
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