AutoCodes – Mercury – B2676 Mercury

B2676 Mercury Code - Keypad C Switch Circuit Failure

Quick Answer

The Vehicle Security Module monitors the Keypad C Switch Circuit. Common causes include Faulty Remote Keyless Entry (RKE) Keypad, Remote Keyless Entry (RKE) Keypad harness is open or shorted, Remote Keyless Entry (RKE) Keypad 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
B2676 Mercury indicates Keypad C Switch Circuit Failure.
Common causes
Common causes include Faulty Remote Keyless Entry (RKE) Keypad, Remote Keyless Entry (RKE) Keypad harness is open or shorted, Remote Keyless Entry (RKE) Keypad 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.
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Code Popularity 407
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 13, 2020
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Code B2676 Mercury Description

The Vehicle Security Module monitors the Keypad C Switch Circuit. The Vehicle Security Module sets the OBDII code when the Keypad C Switch Circuit is not to factory specifications.
OBDII Code B2676 Mercury -  Keypad C Switch Circuit Failure - AutoCodes.com
B2676 Mercury Code - Keypad C Switch Circuit Failure

What are the Possible Causes of the DTC B2676 Mercury?

  • Faulty Remote Keyless Entry (RKE) Keypad
  • Remote Keyless Entry (RKE) Keypad harness is open or shorted
  • Remote Keyless Entry (RKE) Keypad circuit poor electrical connection
  • Faulty Vehicle Security Module

How to Fix the DTC B2676 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 B2676 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.

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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 B2676 Mercury Code

1. What does the OBDII code B2676 mean on a Mercury vehicle?

B2676 indicates a Keypad C Switch Circuit Failure, meaning there is an issue with the circuit that controls one of the keypad buttons used for keyless entry.

2. What are the symptoms of the B2676 code in a Mercury?

Common symptoms include an inoperative keyless entry keypad or specific buttons on the keypad not responding when pressed.

3. What causes the B2676 code to appear?

This code is usually caused by a faulty keypad, damaged wiring or connectors in the keypad circuit, or a malfunctioning body control module (BCM).

4. Can I still use my Mercury vehicle if code B2676 is present?

Yes, the vehicle can still be driven, but you may lose the functionality of the keyless entry keypad until the issue is resolved.

5. How do I diagnose a B2676 code on my Mercury?

Start by inspecting the keypad and its wiring for damage or corrosion, then check for continuity in the circuit. If no issues are found, test the BCM for faults.

6. Can a weak car battery cause the B2676 code?

While unlikely, a weak or failing battery can sometimes cause electrical malfunctions, including issues with the keypad circuit.

7. How is the B2676 code fixed on a Mercury?

Repairs may involve replacing the keyless entry keypad, repairing damaged wiring or connectors, or reprogramming or replacing the BCM.

8. Is the B2676 code specific to Mercury vehicles?

While B2676 is common on some Mercury models, it may also appear on other Ford vehicles with similar keyless entry systems.

9. How much does it cost to fix the B2676 code?

The repair cost depends on the issue. Replacing the keypad may cost $100-$300, while BCM repairs or replacements can range from $300-$800.

10. Can I clear the B2676 code without fixing the problem?

Clearing the code with a scan tool may temporarily remove it, but it will likely return if the underlying issue is not resolved.

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