B1D7B Chrysler Code - Seat Horizontal 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 Horizontal Seat Adjuster Motor, Driver Horizontal Seat Adjuster Motor harness is open or shorted, Driver Horizontal 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
- B1D7B Chrysler indicates Seat Horizontal Motor Control Circuit Performance.
- Common causes
- Common causes include Faulty Driver Horizontal Seat Adjuster Motor, Driver Horizontal Seat Adjuster Motor harness is open or shorted, Driver Horizontal 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 B1D7B Chrysler 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 B1D7B Chrysler?
- Faulty Driver Horizontal Seat Adjuster Motor
- Driver Horizontal Seat Adjuster Motor harness is open or shorted
- Driver Horizontal Seat Adjuster Motor circuit poor electrical connection
- Faulty Memory Seat Module-Driver (MSMD)
How to Fix the DTC B1D7B Chrysler?
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 B1D7B Chrysler 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 B1D7B Chrysler code?
Need more information on how to fix the B1D7B Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1D7B Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1D7B Chrysler Code
1. What does the OBDII code B1D7B mean for a Chrysler vehicle?
The code B1D7B refers to a fault in the Seat Horizontal Motor Control Circuit, indicating a performance issue with the motor or its related wiring.
2. What are the common symptoms of the B1D7B code?
Symptoms may include the inability to adjust the seat horizontally, erratic seat movement, or no response from the horizontal seat controls.
3. What causes the B1D7B code to appear?
Common causes include a faulty seat horizontal motor, damaged wiring or connectors, a blown fuse, or a malfunction in the seat control module.
4. Can I still drive my Chrysler with the B1D7B code?
Yes, you can still drive the vehicle, but the seat adjustment may not function properly, potentially affecting comfort or driving ergonomics.
5. How can I diagnose the B1D7B code?
Start by inspecting the seat motor wiring and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
6. How do I fix the B1D7B code on my Chrysler?
Repairs may involve replacing the seat horizontal motor, repairing damaged wiring, cleaning or reconnecting electrical connectors, or replacing the seat control module if necessary.
7. Is the B1D7B code related to other seat adjustment problems?
Yes, it specifically pertains to horizontal adjustments, but other seat motors or circuits may fail similarly and require separate diagnosis.
8. How much does it cost to fix the B1D7B code?
Repairs can range from $100 to $500 depending on whether the motor, wiring, or control module needs replacement and whether labor costs are involved.
9. Can I clear the B1D7B code without fixing the issue?
Clearing the code without addressing the root cause will likely result in the code returning as the underlying issue persists.
10. Should I take my Chrysler to a mechanic for the B1D7B code?
If you're unfamiliar with diagnosing and repairing electrical components, it’s best to consult a professional mechanic to avoid further damage.
1. What does the OBDII code B1D7B mean on a Chrysler?
The code B1D7B indicates a problem with the Seat Horizontal Motor Control Circuit, which controls the horizontal adjustment of the seat.
2. What are the common symptoms of a B1D7B code?
Symptoms include the seat not moving horizontally, intermittent seat movement, or no response from the seat adjustment switch.
4. How do I troubleshoot the B1D7B code?
Start by inspecting the wiring and connections for damage, check the seat motor for proper operation, and test the seat adjustment switch.
5. Can I still drive my car with the B1D7B code active?
Yes, the vehicle is still drivable, but the seat adjustment feature may be limited or non-functional, potentially affecting comfort.
6. How do I fix the B1D7B code on a Chrysler?
Repairs may involve replacing the seat motor, repairing damaged wiring, or replacing a faulty seat adjustment switch.
7. Is the B1D7B code specific to Chrysler vehicles?
Yes, the B1D7B code is specific to Chrysler and indicates an issue with the seat horizontal motor control circuit in these vehicles.
8. What tools are needed to diagnose the B1D7B code?
A multimeter to check wiring and connections, a scan tool to read the code, and possibly a power probe to test the seat motor.
9. How much does it cost to fix the B1D7B code?
Costs vary depending on the issue, ranging from $50-$200 for wiring repairs to $200-$500 for motor or switch replacement.
10. Can I reset the B1D7B code without fixing the issue?
Clearing the code without addressing the root cause will only result in the code returning once the issue is detected again.
Discuss the causes and fixes for B1D7B Chrysler OBDII Code
Code B1D7B Chrysler comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
