B1D87 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 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 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?
- 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?
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 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
- B1D87 Chrysler — Seat Backrest Motor Control Circuit Peformance
- B1D87 Dodge — Seat Backrest Motor Control Circuit Peformance
- B1D87 Jeep — Seat Backrest Motor Control Circuit Peformance
- B1D87 RAM — Seat Backrest Motor Control Circuit Peformance
Frequently Asked Questions about B1D87 Code
1. What are the common symptoms of OBDII code B1D87 Seat Backrest Motor Control Circuit Performance?
- Common symptoms include the seat backrest motor not functioning properly, seat backrest not adjusting, or unusual noises coming from the seat.
2. What are the possible causes of the B1D87 OBDII code related to the seat backrest motor control circuit?
- Possible causes include a faulty seat backrest motor, damaged wiring or connectors, a blown fuse, or a malfunctioning control module.
3. How can I diagnose the B1D87 OBDII code for the seat backrest motor control circuit?
- Diagnose the code by checking the seat backrest motor for proper operation, inspecting wiring and connectors for damage, testing fuses related to the circuit, and scanning the control module for faults.
4. Can I continue driving with the B1D87 OBDII code triggered for the seat backrest motor control circuit?
- It is not recommended to continue driving with this code triggered, as it may result in the seat backrest being stuck in one position or causing potential safety hazards.
5. What are some repair tips for fixing the B1D87 OBDII code Seat Backrest Motor Control Circuit Performance?
- Repair tips include checking and repairing any damaged wiring or connectors, replacing the faulty seat backrest motor, resetting the control module, and ensuring all fuses are in good condition.
6. How much does it typically cost to repair the B1D87 OBDII code related to the seat backrest motor control circuit?
- Repair costs can vary depending on the specific issue, but it may range from $100 to $500 for parts and labor.
7. Are there any DIY solutions for addressing the B1D87 OBDII code Seat Backrest Motor Control Circuit Performance?
- DIY solutions include checking and cleaning connectors, inspecting wiring for visible damage, and replacing fuses if necessary. However, complex repairs may require professional assistance.
8. How long does it usually take to repair the B1D87 OBDII code Seat Backrest Motor Control Circuit Performance?
- The repair time can vary based on the extent of the issue, but it typically takes a few hours to a day to diagnose and fix the problem.
9. Can weather conditions or external factors trigger the B1D87 OBDII code for the seat backrest motor control circuit?
- Extreme weather conditions or water damage can potentially affect the seat backrest motor control circuit, leading to the triggering of the B1D87 code.
10. Is it necessary to reset the OBDII system after repairing the B1D87 OBDII code Seat Backrest Motor Control Circuit Performance?
- It is recommended to reset the OBDII system after repairing the code to clear any stored faults and ensure proper functioning of the seat backrest motor control circuit.
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