B14FC Ford Code - Low Side Driver 5
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
- B14FC Ford indicates Low Side Driver 5.
- 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.
Code B14FC Ford Description
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.
What are the Possible Causes of the DTC B14FC 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 B14FC 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.
Code Tech Notes
B14FC:12 Low Side Driver 5 Short To battery
B14FC:13 Low Side Driver 5 Open Circuit
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B14FC 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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Frequently Asked Questions about B14FC Ford Code
What does OBDII code B14FC mean on a Ford vehicle?
Code B14FC indicates an issue with the Low Side Driver 5 circuit, which is responsible for controlling certain electrical components in the vehicle.
What are common symptoms of code B14FC on a Ford?
Symptoms may include malfunctioning electrical components, such as lights or actuators, and possible warning lights on the dashboard.
What causes code B14FC to appear in a Ford vehicle?
This code can be triggered by a short circuit, open circuit, damaged wiring, faulty connectors, or a failed control module.
Can driving with code B14FC damage the vehicle?
While it may not immediately harm the vehicle, ignoring this code could lead to further electrical issues or failure of the affected component.
How can code B14FC be diagnosed on a Ford?
Use an OBDII scanner to confirm the code, then inspect the wiring, connectors, and related components in the Low Side Driver 5 circuit for damage or faults.
What tools are needed to fix code B14FC on a Ford?
You may need an OBDII scanner, multimeter, wiring diagrams, and basic automotive tools to diagnose and repair the issue.
How much does it cost to repair code B14FC on a Ford?
Repair costs vary based on the cause, ranging from $50 to $300 for wiring repairs, or more if a control module needs replacement.
Can a faulty control module cause code B14FC on a Ford?
Yes, a malfunctioning control module can fail to regulate the Low Side Driver 5 circuit, triggering this code.
Is code B14FC specific to certain Ford models?
While it can appear on various Ford models, it is often associated with vehicles equipped with advanced electrical systems.
What should be checked first when troubleshooting code B14FC?
Start by inspecting the wiring and connectors in the Low Side Driver 5 circuit for visible damage, corrosion, or disconnections.
Discuss the causes and fixes for B14FC Ford OBDII Code
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