B14F3 Ford Code - High Side Driver 4
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
- B14F3 Ford indicates High Side Driver 4.
- 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 B14F3 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 B14F3 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 B14F3 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
B14F3:12 High Side Driver 4 Short To battery
B14F3:13 High Side Driver 4 Open Circuit
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B14F3 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 B14F3 Ford Code
1. What are common symptoms of OBDII code B14F3 in a Ford, also known as High Side Driver 4?
Common symptoms include issues with the vehicle's electronic control unit (ECU), malfunctioning of certain electrical components, and warning lights on the dashboard.
2. What causes the OBDII code B14F3, High Side Driver 4, to trigger in a Ford vehicle?
The code B14F3 typically triggers due to a fault in the high side driver circuit controlling a specific electrical component in the vehicle.
3. How can I diagnose the OBDII code B14F3 related to High Side Driver 4 in my Ford?
Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the affected electrical system, and testing the high side driver circuit for faults.
4. Is it safe to continue driving my Ford if the OBDII code B14F3, High Side Driver 4, is present?
It is not recommended to drive the vehicle with this code present, as it may lead to further electrical issues or component failures.
5. What are some repair tips for fixing the OBDII code B14F3 in a Ford related to High Side Driver 4?
Repair tips may include checking and repairing damaged wiring, replacing the high side driver circuit, and ensuring proper connections in the affected electrical system.
6. Can resetting the OBDII system clear the B14F3 code related to High Side Driver 4 in a Ford?
Resetting the OBDII system may temporarily clear the code, but it is essential to diagnose and repair the underlying issue to prevent the code from reoccurring.
7. How much does it typically cost to repair the OBDII code B14F3, High Side Driver 4, in a Ford?
The cost of repair can vary depending on the extent of the issue, parts needed, and labor costs, so it is advisable to get a professional diagnosis for an accurate estimate.
8. Will the OBDII code B14F3, High Side Driver 4, affect the overall performance of my Ford vehicle?
Yes, this code can impact the performance of certain electrical components, potentially leading to issues with vehicle operation and functionality.
9. Are there any common Ford models known to experience the OBDII code B14F3 related to High Side Driver 4?
While this code can occur in various Ford models, it may be more commonly reported in specific vehicles due to shared components or wiring configurations.
10. Can a DIY enthusiast with basic automotive knowledge attempt to repair the OBDII code B14F3, High Side Driver 4, in a Ford?
Depending on the specific issue, a DIY enthusiast may be able to address simple wiring problems, but complex repairs involving the ECU or high side driver circuit are best left to professional technicians.
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