AutoCodes – Generic – B2009

B2009 Code - Received Data Does Not Match

Quick Answer

The transceiver module communicates with the Passive Anti-Theft System (PATS) Key. Common causes include Powertrain Control Module (PCM) Calibration, Transmission Control Module (TCM) Calibration, Faulty Powertrain Control Module. 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: B2009 indicates Received Data Does Not Match.
Common causes: Common causes include Powertrain Control Module (PCM) Calibration, Transmission Control Module (TCM) Calibration, Faulty Powertrain Control Module.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,295

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 17, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2009 Description

The transceiver module communicates with the Passive Anti-Theft System (PATS) Key. The control functions are contained in the Powertrain Control Module (PCM). The PCM carries out all of the PATS functions such as receiving the identification code from the PATS key and controlling engine and transaxle enable. The PCM initiates the key interrogation sequence when the key is inserted in the ignition switch and when the ignition switch is turned to the RUN or START position. The Diagnostic Trouble Code (DTC) will set if the received data does not match what was expected.

OBDII Code B2009 - Received Data Does Not Match - AutoCodes.com — B2009 Code - Received Data Does Not Match

What does this mean?

What are the Possible Causes of the DTC B2009?

Powertrain Control Module (PCM) Calibration
Transmission Control Module (TCM) Calibration
Faulty Powertrain Control Module
Faulty Transmission Control Module

How to Fix the DTC B2009?

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 B2009 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 B2009 code?

Need more information on how to fix the B2009 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2009 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2009 Ford — Received Data Does Not Match
B2009 Lincoln — Received Data Does Not Match
B2009 Mercury — Received Data Does Not Match

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2009 Code

1. What are the common symptoms of OBDII code B2009 (Received Data Does Not Match)?

- Common symptoms include issues with communication between control modules, warning lights on the dashboard, and potential drivability issues.

2. What are the possible causes of OBDII code B2009?

- Possible causes can include wiring issues, faulty control modules, software malfunctions, or a problem with the data being transmitted.

3. How can I diagnose the cause of OBDII code B2009?

- Diagnosing the issue involves checking the wiring connections, inspecting control modules for faults, and using diagnostic tools to analyze data communication.

4. Can a DIYer repair OBDII code B2009 at home?

- Depending on the root cause, some DIY repairs may be possible, such as fixing loose connections or replacing a faulty control module. However, complex issues may require professional assistance.

5. What are some repair tips for addressing OBDII code B2009?

- Ensure all wiring connections are secure, check for any visible damage to wiring harnesses, and consider resetting the system to see if the issue persists.

6. Is it safe to continue driving with OBDII code B2009 present?

- It is generally not recommended to drive with unresolved OBDII codes, as they can indicate underlying issues that may affect the vehicle's performance and safety.

7. How can a mechanic reset OBDII code B2009 after repairs?

- After addressing the root cause of the issue, a mechanic can use a diagnostic tool to reset the code and clear it from the vehicle's system.

8. Are there any common mistakes to avoid when dealing with OBDII code B2009?

- Avoid ignoring the code or attempting to clear it without addressing the underlying problem, as this may lead to recurring issues or further damage.

9. Can extreme weather conditions trigger OBDII code B2009?

- Yes, extreme temperatures or moisture can sometimes affect electrical connections and lead to communication errors, potentially triggering code B2009.

10. How can preventive maintenance help prevent OBDII code B2009 from recurring?

- Regularly checking and maintaining wiring connections, control modules, and software updates can help prevent issues that may trigger code B2009.

Discuss the causes and fixes for B2009 OBDII Code

Submit a New Comment

Code B2009 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.