AutoCodes – Lincoln – B2479 Lincoln

B2479 Lincoln Code - Brake Park Switch Circuit Short To Ground

Quick Answer

The Instrument Cluster (IC) uses 3 basic messaged inputs to control the brake warning indicator. Common causes include Faulty Brake Park Switch, Brake Park Switch harness is open or shorted, Brake Park Switch 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: B2479 Lincoln indicates Brake Park Switch Circuit Short To Ground.
Common causes: Common causes include Faulty Brake Park Switch, Brake Park Switch harness is open or shorted, Brake Park Switch 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 1,637

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 Dec 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2479 Lincoln Description

The Instrument Cluster (IC) uses 3 basic messaged inputs to control the brake warning indicator. The first 2 are the parking brake warning indicator switch and brake fluid level switch. The third is for the Electronic Brake Distribution (EBD), controlled by the ABS. The parking brake warning indicator switch and the brake fluid level switch status are sent from the Smart Junction Box (SJB) over the Medium Speed Controller Area Network (MS-CAN) communication bus. The EBD message is sent from the ABS module over the High Speed Controller Area Network (HS-CAN) communication bus lines.

OBDII Code B2479 Lincoln - Brake Park Switch Circuit Short To Ground - AutoCodes.com — B2479 Lincoln Code - Brake Park Switch Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B2479 Lincoln?

Faulty Brake Park Switch
Brake Park Switch harness is open or shorted
Brake Park Switch circuit poor electrical connection

How to Fix the DTC B2479 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 B2479 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 B2479 Lincoln code?

Need more information on how to fix the B2479 Lincoln code? Get Access to Factory Service Manuals

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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 B2479 Lincoln Code

1. What are the common symptoms of OBDII code B2479 in a Lincoln related to the Brake Park Switch Circuit Short To Ground?

- Common symptoms include the brake lights remaining on constantly, difficulty shifting out of park, and the vehicle not recognizing when the brake pedal is depressed.

2. What are the possible causes of OBDII code B2479 in a Lincoln?

- The code B2479 in a Lincoln can be caused by a short to ground in the wiring of the brake park switch circuit, a faulty brake park switch, or damaged wiring harnesses.

3. How can I diagnose the OBDII code B2479 related to the Brake Park Switch Circuit Short To Ground in my Lincoln?

- Diagnosing the B2479 code typically involves inspecting the brake park switch, checking the wiring for any signs of damage or shorts, and using a multimeter to test for continuity and voltage.

4. Can I continue driving my Lincoln with the OBDII code B2479 present?

- It is not recommended to drive your Lincoln with the B2479 code present, as it can affect the proper operation of the brake lights and potentially lead to unsafe driving conditions.

5. How can I repair the OBDII code B2479 in my Lincoln?

- Repairing the B2479 code involves fixing the short to ground in the brake park switch circuit, replacing the faulty brake park switch if necessary, and repairing any damaged wiring.

6. Are there any DIY tips for fixing the OBDII code B2479 related to the Brake Park Switch Circuit Short To Ground in a Lincoln?

- DIY tips for fixing the B2479 code include carefully inspecting the wiring for any visible damage, ensuring all connectors are securely attached, and following the manufacturer's service manual for specific repair procedures.

7. Can a faulty brake park switch cause other issues in my Lincoln besides triggering the OBDII code B2479?

- Yes, a faulty brake park switch can cause additional issues in a Lincoln, such as difficulty shifting gears, intermittent brake light operation, and even preventing the vehicle from starting.

8. Is it necessary to reset the OBDII code B2479 in my Lincoln after making repairs?

- Yes, it is recommended to reset the B2479 code after making repairs to clear it from the vehicle's system and ensure that the issue has been resolved.

9. How long does it typically take to repair the OBDII code B2479 related to the Brake Park Switch Circuit Short To Ground in a Lincoln?

- The repair time for the B2479 code can vary depending on the extent of the damage and the complexity of the repair process, but it can generally be completed within a few hours to a day.

10. Can the OBDII code B2479 in a Lincoln be a recurring issue after repair?

- If the root cause of the B2479 code, such as a faulty brake park switch or damaged wiring, is not properly addressed during the repair, it can lead to the issue recurring in the future.