AutoCodes – Mercury – B2009 Mercury

B2009 Mercury 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 Mercury 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.

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Code Popularity 430

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

What does this mean?

What are the Possible Causes of the DTC B2009 Mercury?

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

How to Fix the DTC B2009 Mercury?

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 Mercury 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 Mercury code?

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

Need Help with the Code?

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

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 Mercury Code

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

- Common symptoms include erratic behavior of electronic components, malfunctioning gauges, and intermittent issues with the vehicle's communication system.

2. What are the possible causes of OBDII code B2009 in a Mercury vehicle?

- The code B2009 can be triggered by faulty wiring, loose connections, a defective BCM (Body Control Module), or issues with the CAN (Controller Area Network) bus communication system.

3. How can I diagnose OBDII code B2009 in my Mercury vehicle?

- Diagnosing this code typically involves checking the wiring harness and connections for any damage or corrosion, testing the BCM for proper functionality, and using a diagnostic scanner to analyze communication between control modules.

4. What repair tips can help resolve OBDII code B2009 in a Mercury vehicle?

- Repair tips include checking and repairing any damaged wiring or connectors, ensuring proper grounding of the BCM, updating software if available, and performing a thorough inspection of the CAN bus network.

5. Can I drive my Mercury vehicle with OBDII code B2009 present?

- It is generally not recommended to drive the vehicle with unresolved OBDII code B2009, as it can lead to further electrical issues and potential safety hazards due to malfunctioning electronic components.

6. Is it possible to reset OBDII code B2009 in a Mercury vehicle without repairs?

- While clearing the code temporarily may be possible using a diagnostic scanner, it is crucial to address the underlying cause to prevent the code from reoccurring and ensure the proper functioning of the vehicle's electronic systems.

7. Are there any recalls or technical service bulletins related to OBDII code B2009 in Mercury vehicles?

- It is advisable to check with an authorized Mercury dealership or visit the NHTSA website to see if there are any relevant recalls or technical service bulletins related to OBDII code B2009 in your specific vehicle model.

8. Can a DIY enthusiast fix OBDII code B2009 in a Mercury vehicle, or is professional assistance recommended?

- While some basic troubleshooting and repairs can be done by DIY enthusiasts, addressing complex issues related to OBDII code B2009 may require specialized knowledge and tools, making professional assistance advisable in many cases.

9. How much does it typically cost to repair OBDII code B2009 in a Mercury vehicle?

- The cost of repairing OBDII code B2009 can vary depending on the underlying cause, the extent of damage, and whether professional assistance is required. It is recommended to obtain estimates from reputable mechanics or dealerships.

10. Are there any preventative measures to avoid OBDII code B2009 in a Mercury vehicle?

- Regular maintenance, such as checking and cleaning electrical connections, ensuring proper grounding, and promptly addressing any warning signs related to electronic system malfunctions, can help prevent issues that may trigger OBDII code B2009.