AutoCodes – Lincoln – C0040 Lincoln

C0040 Lincoln Code - Brake Pedal Switch 'A' Signal Plausibility Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Brake Pedal Switch 'A'. Common causes include Faulty Brake Pedal Switch 'A', Brake Pedal Switch 'A' harness is open or shorted, Brake Pedal Switch 'A' 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
C0040 Lincoln indicates Brake Pedal Switch 'A' Signal Plausibility Failure.
Common causes
Common causes include Faulty Brake Pedal Switch 'A', Brake Pedal Switch 'A' harness is open or shorted, Brake Pedal Switch 'A' 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,089
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 02, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code C0040 Lincoln Description

The Anti-Lock Brake System (ABS) Module monitors the Brake Pedal Switch 'A'. The ABS Module sets the OBDII code when the Brake Pedal Switch 'A' is not to factory specifications.
OBDII Code C0040 Lincoln - Brake Pedal Switch 'A' Signal Plausibility Failure - AutoCodes.com
C0040 Lincoln Code - Brake Pedal Switch 'A' Signal Plausibility Failure

What are the Possible Causes of the DTC C0040 Lincoln?

  • Faulty Brake Pedal Switch 'A'
  • Brake Pedal Switch 'A' harness is open or shorted
  • Brake Pedal Switch 'A' circuit poor electrical connection

How to Fix the DTC C0040 Lincoln?

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 C0040 Lincoln 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 C0040 Lincoln code?

Need more information on how to fix the C0040 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0040 Lincoln 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 C0040 Lincoln Code

1. What are the common symptoms of OBDII code C0040 in a Lincoln related to Brake Pedal Switch 'A' Signal Plausibility Failure?

- Common symptoms include the difficulty in shifting gears, illuminated ABS or brake warning lights on the dashboard, and potential loss of cruise control functionality.

2. What can cause the OBDII code C0040 in a Lincoln indicating Brake Pedal Switch 'A' Signal Plausibility Failure?

- The code can be triggered by a faulty brake pedal switch, damaged wiring or connectors in the brake pedal circuit, or issues with the ABS module.

3. How can I diagnose the OBDII code C0040 in my Lincoln related to Brake Pedal Switch 'A' Signal Plausibility Failure?

- To diagnose the issue, it is recommended to perform a visual inspection of the brake pedal switch and its wiring, check for any loose or damaged connections, and use a diagnostic scanner to read the trouble codes stored in the ABS module.

4. Can I still drive my Lincoln with the OBDII code C0040 indicating Brake Pedal Switch 'A' Signal Plausibility Failure?

- It is not advisable to drive the vehicle with this code present, as it may affect the proper functioning of the ABS system and compromise overall safety.

5. What is the typical repair process for fixing the OBDII code C0040 in a Lincoln with Brake Pedal Switch 'A' Signal Plausibility Failure?

- The typical repair process involves replacing the faulty brake pedal switch, repairing any damaged wiring or connectors, clearing the trouble codes, and conducting a test drive to ensure the issue is resolved.

6. Are there any DIY tips for troubleshooting the OBDII code C0040 in a Lincoln related to Brake Pedal Switch 'A' Signal Plausibility Failure?

- DIY enthusiasts can start by checking the brake pedal switch for proper operation, inspecting the wiring for any visible damage, and using a multimeter to test continuity in the circuit.

7. How much does it cost to repair the OBDII code C0040 in a Lincoln due to Brake Pedal Switch 'A' Signal Plausibility Failure?

- The cost of repair can vary depending on the extent of the issue, but on average, it may range from $100 to $300 including parts and labor.

8. Can a faulty brake pedal switch trigger other OBDII codes besides C0040 in a Lincoln?

- Yes, a faulty brake pedal switch can potentially trigger other related trouble codes such as C0041 or C0042, which are also associated with brake pedal switch signal issues.

9. Is it necessary to reset the ABS system after repairing the OBDII code C0040 in a Lincoln related to Brake Pedal Switch 'A' Signal Plausibility Failure?

- Yes, it is recommended to reset the ABS system after completing the repair to clear any stored trouble codes and ensure proper functionality.

10. How can regular maintenance help prevent the occurrence of the OBDII code C0040 in a Lincoln due to Brake Pedal Switch 'A' Signal Plausibility Failure?

- Regular maintenance, including periodic inspections of the brake pedal switch and its wiring, can help identify and address potential issues early on, reducing the likelihood of triggering the C0040 trouble code.

Discuss the causes and fixes for C0040 Lincoln OBDII Code

Code C0040 Lincoln comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play