AutoCodes – Ford – B14F1 Ford

B14F1 Ford Code - High Side Driver 2

Quick Answer

The Upfitter Interface Module utilizes a Field Effect Transistor (FET) protective circuit strategy to protect the low and high side driver output circuits. Common causes include Faulty Upfitter Interface Module, Upfitter Interface Module harness is open or shorted, Upfitter Interface Module 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: B14F1 Ford indicates High Side Driver 2.
Common causes: Common causes include Faulty Upfitter Interface Module, Upfitter Interface Module harness is open or shorted, Upfitter Interface Module 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 1,080

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 Apr 23, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B14F1 Ford Description

The Upfitter Interface Module utilizes a Field Effect Transistor (FET) protective circuit strategy to protect the low and high side driver output circuits. Output loads (current levels) are monitored for excessive current (which is typically caused by a short circuit to ground) and are shut down (turns off the voltage or ground provided by the module) when a fault is detected.
A short to battery voltage occurring on either a low or high side driver output circuit may also result in a temporarily loss of operation in the output circuit (no voltage or ground will be applied to the output circuit) to protect the module against a potential over temperature condition.
A Field Effect Transistor (FET) is a type of transistor that the module uses to control and monitor current flow on module output circuits. The Field Effect Transistor (FET) protection strategy prevents damage from occurring to the module.
Whenever a FET is turned off because of a fault condition a Diagnostic Trouble Code (DTC) is set in the module which corresponds to the specific fault observed. The module resets the Field Effect Transistor (FET) protection and allows the circuit to function when the fault is corrected or the ignition is cycled off and then back on. The ignition should always be cycled from off to on after a fault is corrected to ensure that FET protection is reset.

OBDII Code B14F1 Ford - High Side Driver 2 - AutoCodes.com — B14F1 Ford Code - High Side Driver 2

What does this mean?

What are the Possible Causes of the DTC B14F1 Ford?

Faulty Upfitter Interface Module
Upfitter Interface Module harness is open or shorted
Upfitter Interface Module circuit poor electrical connection

How to Fix the DTC B14F1 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

B14F1:11 High Side Driver 2 Short To Ground
B14F1:12 High Side Driver 2 Short To battery
B14F1:13 High Side Driver 2 Open Circuit

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B14F1 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 B14F1 Ford Code

1. What are common symptoms of the OBDII code B14F1 Ford (High Side Driver 2)?

The common symptoms of the B14F1 code include issues with the operation of various vehicle components controlled by High Side Driver 2.

2. What can cause the OBDII code B14F1 Ford (High Side Driver 2) to trigger?

The B14F1 code is typically triggered by a malfunction in the High Side Driver 2 circuit, which can be caused by wiring issues, a faulty driver module, or a problem with the associated components.

3. How serious is the OBDII code B14F1 Ford (High Side Driver 2)?

While the B14F1 code may not cause immediate drivability issues, it is important to address it promptly to prevent potential damage to other vehicle systems and ensure proper functionality.

4. How can I diagnose the OBDII code B14F1 Ford (High Side Driver 2)?

Diagnosing the B14F1 code involves using a diagnostic scanner to retrieve the code, inspecting the High Side Driver 2 circuit, checking for loose or damaged wiring, and testing the driver module and related components.

5. Can I drive my vehicle with the OBDII code B14F1 Ford (High Side Driver 2)?

It is generally not recommended to drive your vehicle with an active B14F1 code, as it may lead to further issues and compromise the performance of affected systems.

6. What are some repair tips for fixing the OBDII code B14F1 Ford (High Side Driver 2)?

Repairing the B14F1 code often involves repairing or replacing damaged wiring, testing and potentially replacing the High Side Driver 2 module, and ensuring proper connections and grounds.

7. How much does it cost to repair the OBDII code B14F1 Ford (High Side Driver 2)?

The cost of repairing the B14F1 code can vary depending on the root cause of the issue, the cost of replacement parts, and the labor rates of the repair facility. It is recommended to obtain quotes from different service providers.

8. Can a DIY enthusiast fix the OBDII code B14F1 Ford (High Side Driver 2)?

While some DIY enthusiasts may have the skills and tools to address the B14F1 code, it is important to have a good understanding of automotive electrical systems and diagnostics before attempting the repair.

9. Are there any recalls related to the OBDII code B14F1 Ford (High Side Driver 2)?

Recalls related to the B14F1 code may vary by vehicle model and year. It is advisable to check with the manufacturer or a qualified dealership to see if there are any applicable recalls.

10. How can I prevent the OBDII code B14F1 Ford (High Side Driver 2) from recurring?

To prevent the recurrence of the B14F1 code, it is essential to address any underlying issues promptly, perform regular maintenance checks on the vehicle's electrical systems, and ensure proper installation of any aftermarket components.