B0856 Code - Memory Seat Module 5 Volt Reference Out of Range
Quick Answer
The Memory Seat Module has two battery voltage supply circuits. Common causes include Faulty Memory Seat Module, Memory Seat Module harness is open or shorted, Memory Seat Module circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B0856 indicates Memory Seat Module 5 Volt Reference Out of Range.
- Common causes
- Common causes include Faulty Memory Seat Module, Memory Seat Module harness is open or shorted, Memory Seat Module circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B0856 Description
What are the Possible Causes of the DTC B0856?
- Faulty Memory Seat Module
- Memory Seat Module harness is open or shorted
- Memory Seat Module circuit poor electrical connection
How to Fix the DTC B0856?
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 B0856 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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Get the B0856 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B0856 Buick — Memory Seat Module 5 Volt Reference Out of Range
- B0856 Cadillac — Memory Seat Module 5 Volt Reference Out of Range
- B0856 Chevrolet — Memory Seat Module 5 Volt Reference Out of Range
- B0856 GMC — Memory Seat Module 5 Volt Reference Out of Range
Frequently Asked Questions about B0856 Code
1. What are the common symptoms of OBDII code B0856 (Memory Seat Module 5 Volt Reference Out of Range)?
- Common symptoms include malfunctioning memory seat functions, power seat adjustment issues, and potential warning lights on the dashboard.
2. What are the possible causes of OBDII code B0856?
- The code B0856 can be triggered by a faulty memory seat module, damaged wiring or connectors, a failed 5-volt reference circuit, or issues with the power supply.
3. How can I diagnose the cause of OBDII code B0856?
- To diagnose OBDII code B0856, you can start by inspecting the wiring and connectors related to the memory seat module, checking the 5-volt reference circuit for any faults, and performing a thorough scan with an OBDII scanner.
4. Can OBDII code B0856 be fixed easily?
- The complexity of fixing OBDII code B0856 depends on the root cause. In some cases, it may be a simple fix like repairing a damaged wire, while in other cases, it may require replacing the memory seat module or addressing more complex electrical issues.
5. Are there any DIY repair tips for OBDII code B0856?
- DIY repair tips for OBDII code B0856 include checking for loose connections, inspecting the wiring for damage, and ensuring that the power supply to the memory seat module is stable. However, complex electrical repairs may require professional assistance.
6. Can driving with OBDII code B0856 cause further damage to the vehicle?
- Driving with OBDII code B0856 may not necessarily cause immediate damage to the vehicle, but it can lead to continued issues with the memory seat functions and potentially affect other electrical components if left unresolved.
7. How much does it typically cost to repair OBDII code B0856?
- The cost of repairing OBDII code B0856 can vary based on the root cause of the issue, the vehicle make and model, and whether you choose to DIY or seek professional help. Repair costs may range from a few hundred to over a thousand dollars.
8. Can resetting the OBDII code B0856 clear the issue permanently?
- Resetting the OBDII code B0856 may temporarily clear the issue, but if the root cause is not addressed, the code is likely to reappear. It is essential to diagnose and fix the underlying problem to prevent recurrence.
9. Is it safe to continue driving with OBDII code B0856 unresolved?
- While driving with OBDII code B0856 may not pose an immediate safety risk, it is recommended to address the issue promptly to ensure the proper functioning of the memory seat module and prevent potential electrical problems in the vehicle.
10. How long does it typically take to repair OBDII code B0856?
- The repair time for OBDII code B0856 can vary depending on the complexity of the issue, availability of parts, and the expertise of the technician. Simple fixes may take a few hours, while more involved repairs could take a day or longer.
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