B10D7 Code - PATS Key System Programming Failure
Quick Answer
When the Body Control Module (BCM) enters a key programming state, it activates the transceiver to read the key in the ignition key cylinder. Common causes include Passive Anti-Theft System (PATS) key not programmed, Faulty Body Control Module (BCM). 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
- B10D7 indicates PATS Key System Programming Failure.
- Common causes
- Common causes include Passive Anti-Theft System (PATS) key not programmed, Faulty Body Control Module (BCM).
- 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 B10D7 Description
What are the Possible Causes of the DTC B10D7?
- Passive Anti-Theft System (PATS) key not programmed
- Faulty Body Control Module (BCM)
How to Fix the DTC B10D7?
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.
Code Tech Notes
B10D7:81 PATS Key: Invalid Serial Data Received
B10D7:87 PATS Key: Missing Message
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B10D7 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
- B10D7 Ford — PATS Key System Programming Failure
- B10D7 Lincoln — PATS Key System Programming Failure
- B10D7 Mercury — PATS Key System Programming Failure
Frequently Asked Questions about B10D7 Code
1. What does the OBDII code B10D7 mean?
The B10D7 code indicates a PATS (Passive Anti-Theft System) key system programming failure, meaning the vehicle’s anti-theft system failed to recognize or program a key.
2. What are the common symptoms of the B10D7 code?
Typical symptoms include the engine not starting, the anti-theft warning light staying on or flashing, and a "no key detected" message in keyless systems.
3. What causes the B10D7 code to appear?
This code is usually triggered by an unprogrammed key, a damaged key transponder, a faulty PATS module, or communication issues between the control modules.
4. Can the B10D7 code be caused by a low battery in the key fob?
Yes, a low or dead key fob battery can prevent the PATS system from detecting the key properly, potentially triggering the code.
5. How do you fix the B10D7 code?
Fixes include programming the key using a compatible scan tool, replacing the key or key fob battery, or repairing/replacing the PATS module if necessary.
6. Can I program a key myself to resolve the B10D7 code?
In some cases, you may be able to program a key yourself using the owner’s manual instructions if you have two working keys. Otherwise, a professional tool or dealership service is required.
7. Does the B10D7 code mean the key is permanently unusable?
Not necessarily. The key may still be reprogrammed unless it is physically damaged or the transponder is defective.
8. What tools are required to fix the B10D7 code?
A professional diagnostic scan tool capable of key programming is required to diagnose and resolve this code properly.
9. Can a faulty ignition switch cause the B10D7 code?
Yes, a malfunctioning ignition switch can prevent the system from detecting the key, leading to this code.
10. Is the B10D7 code specific to any vehicle brand?
The B10D7 code is commonly found in Ford vehicles but may also appear in other brands that use similar PATS systems.
Discuss the causes and fixes for B10D7 OBDII Code
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