B14F7 Code - High Side Driver 8
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
- B14F7 indicates High Side Driver 8.
- 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 B14F7 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 B14F7?
- Faulty Upfitter Interface Module
- Upfitter Interface Module harness is open or shorted
- Upfitter Interface Module circuit poor electrical connection
How to Fix the DTC B14F7?
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
B14F7:12 High Side Driver 8 Short To battery
B14F7:13 High Side Driver 8 Open Circuit
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B14F7 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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Information for Specific Makes
- B14F7 Ford — High Side Driver 8
Frequently Asked Questions about B14F7 Code
1. What are common symptoms of OBDII code B14F7 (High Side Driver 8)?
- Common symptoms include issues with the operation of electrical components controlled by driver 8, such as malfunctioning lights or power windows.
2. What can cause OBDII code B14F7 to trigger?
- The code B14F7 is typically triggered by a fault in the high side driver 8 circuit, which may be caused by wiring issues, a faulty driver module, or a blown fuse.
3. How can I diagnose the cause of OBDII code B14F7?
- Diagnosis involves checking the wiring and connections related to high side driver 8, testing the driver module for functionality, and inspecting the fuse associated with the circuit.
4. Can OBDII code B14F7 be reset without fixing the underlying issue?
- Resetting the code without addressing the root cause will likely result in the code reappearing once the issue is detected again during system checks.
5. Is it safe to continue driving with OBDII code B14F7 active?
- It is generally not recommended to drive with an active B14F7 code, as it indicates a problem that may affect the proper functioning of critical electrical components in the vehicle.
6. Are there any temporary solutions to address OBDII code B14F7?
- Temporary solutions such as checking and securing connections, or replacing a blown fuse, may provide a temporary fix, but it is advisable to address the root cause for a permanent solution.
7. How can I repair OBDII code B14F7 myself?
- DIY repair involves identifying and fixing any wiring issues, replacing the driver module if faulty, and ensuring the circuit is functioning properly to clear the code.
8. Can a mechanic help with fixing OBDII code B14F7?
- Yes, a qualified mechanic can diagnose the issue accurately using specialized tools, repair or replace components as needed, and reset the code to ensure proper functionality.
9. Are there any recalls related to OBDII code B14F7 in specific vehicle models?
- Recalls related to OBDII code B14F7 can vary by manufacturer and model, so it is advisable to check with the vehicle manufacturer or authorized service center for any relevant information.
10. How much does it cost to repair OBDII code B14F7 at a professional auto repair shop?
- The cost of repairing OBDII code B14F7 can vary depending on the specific issue, parts needed, labor costs, and the shop's hourly rate, so it is best to get a detailed quote from a trusted auto repair shop.
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