AutoCodes – Ford – B131A Ford

B131A Ford Code - Delayed Accessory Power Circuit Short

Quick Answer

The Accessory Delay Relay is located in the Body Control Module (BCM). Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay 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: B131A Ford indicates Delayed Accessory Power Circuit Short.
Common causes: Common causes include Faulty Accessory Delay Relay, Accessory Delay Relay harness is open or shorted, Accessory Delay Relay 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 5,852

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 Nov 29, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B131A Ford Description

The Accessory Delay Relay is located in the Body Control Module (BCM). When the ignition is turned ON, the BCM activates the accessory delay relay by grounding the relay coil. When the ignition is turned to the OFF position, the BCM continues to ground the accessory delay relay coil for approximately 10 minutes, or until a front door is opened. When the accessory delay relay is active, it supplies voltage to the power window system. The OBDII sets when the BCM senses an open, short to voltage or short to ground on the accessory delay relay control circuit.

OBDII Code B131A Ford - Delayed Accessory Power Circuit Short - AutoCodes.com — B131A Ford Code - Delayed Accessory Power Circuit Short

What does this mean?

What are the Possible Causes of the DTC B131A Ford?

Faulty Accessory Delay Relay
Accessory Delay Relay harness is open or shorted
Accessory Delay Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B131A Ford?

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 does this mean?

Code Tech Notes

B131A:12 Delayed Accessory Power Circuit Short To Battery
B131A:14 Delayed Accessory Power Circuit Short To Ground or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B131A Ford 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 B131A Ford Code

1. What are common symptoms of the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- Common symptoms include issues with delayed accessory power, such as power windows not functioning properly or power outlets not working.

2. What can cause the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- The code can be caused by a short circuit in the delayed accessory power circuit or a malfunction in the delayed accessory power relay.

3. How can I diagnose the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- Diagnosing the issue involves checking the delayed accessory power circuit for any shorts, inspecting the relay for proper functioning, and testing the associated wiring.

4. Is it safe to continue driving with the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid further electrical problems.

5. How can I repair the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- Repairing the issue may involve repairing any short circuits in the circuit, replacing the delayed accessory power relay if faulty, or repairing damaged wiring.

6. Can a DIY enthusiast fix the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to address this code by following a repair manual or seeking guidance from automotive forums.

7. Will resetting the OBDII code B131A Ford Delayed Accessory Power Circuit Short make it go away permanently?

- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair the OBDII code B131A Ford Delayed Accessory Power Circuit Short at a mechanic?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 at a mechanic's shop.

9. Are there any preventative measures to avoid the OBDII code B131A Ford Delayed Accessory Power Circuit Short?

- Regularly inspecting the electrical system, avoiding overloading power outlets, and addressing any electrical issues promptly can help prevent this code from occurring.

10. Can the OBDII code B131A Ford Delayed Accessory Power Circuit Short affect the overall performance of the vehicle?

- While the code itself may not significantly impact performance, unresolved electrical issues can lead to other problems over time, so it's important to address them promptly.