AutoCodes – Chevrolet – P1F5E Chevrolet

P1F5E Chevrolet Code - 14 Volt Power Module L-Terminal Circuit High Voltage

Quick Answer

The Engine Control Module (ECM) uses two circuits to control and monitor the state of the 14V power module, often referred to as the accessory DC power control module. Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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: P1F5E Chevrolet indicates 14 Volt Power Module L-Terminal Circuit High Voltage.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 877

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 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1F5E Chevrolet Description

The Engine Control Module (ECM) uses two circuits to control and monitor the state of the 14V power module, often referred to as the accessory DC power control module. The control circuit functions much like the L Terminal circuit on a generator equipped vehicle. A high side driver in the ECM applies a duty cycled voltage to the 14V power module. The duty cycle controls the 14V power module output. The ECM monitors the state of the 14V power module control circuit. The ECM will detect faults on the 14V power module control circuit when the vehicle is ON.

OBDII Code P1F5E Chevrolet - 14 Volt Power Module L-Terminal Circuit High Voltage - AutoCodes.com — P1F5E Chevrolet Code - 14 Volt Power Module L-Terminal Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1F5E Chevrolet?

Faulty Engine Control Module (ECM)
Engine Control Module (ECM) harness is open or shorted
Engine Control Module (ECM) circuit poor electrical connection

How to Fix the DTC P1F5E Chevrolet?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1F5E Chevrolet 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.

Need more information about the P1F5E Chevrolet code?

Need more information on how to fix the P1F5E Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1F5E Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P1F5E Chevrolet Code

1. What are common symptoms of OBDII code P1F5E in a Chevrolet related to the 14 Volt Power Module L-Terminal Circuit High Voltage?

Symptoms may include illuminated check engine light, decreased fuel efficiency, and potential issues with vehicle performance.

2. What are the possible causes of OBDII code P1F5E in a Chevrolet indicating the 14 Volt Power Module L-Terminal Circuit High Voltage?

Possible causes may include a faulty 14 volt power module, wiring issues, corrosion or poor connections, or a malfunctioning battery.

3. How can I diagnose the OBDII code P1F5E in a Chevrolet related to the 14 Volt Power Module L-Terminal Circuit High Voltage?

Diagnosis typically involves using an OBDII scanner to read the code, checking the power module and associated wiring for damage, and testing the battery and connections for proper voltage.

4. What are some repair tips for addressing OBDII code P1F5E in a Chevrolet indicating the 14 Volt Power Module L-Terminal Circuit High Voltage?

Repair tips may include checking and cleaning electrical connections, replacing the 14 volt power module if necessary, and ensuring all wiring is intact and functioning properly.

5. Can I drive my Chevrolet with OBDII code P1F5E showing the 14 Volt Power Module L-Terminal Circuit High Voltage?

It is not recommended to drive your vehicle with this code present, as it can lead to further electrical issues and potential damage to other components.

6. How serious is OBDII code P1F5E in a Chevrolet related to the 14 Volt Power Module L-Terminal Circuit High Voltage?

While the code itself may not cause immediate harm, it indicates an issue with the electrical system that should be addressed promptly to prevent potential damage to other components.

7. Is it safe to reset the OBDII code P1F5E in a Chevrolet without fixing the underlying issue of the 14 Volt Power Module L-Terminal Circuit High Voltage?

It is not recommended to simply reset the code without addressing the root cause, as the issue may persist and lead to further problems down the line.

8. How much does it typically cost to repair OBDII code P1F5E in a Chevrolet indicating the 14 Volt Power Module L-Terminal Circuit High Voltage?

The cost of repair can vary depending on the specific issue causing the code, but it may involve replacing the 14 volt power module, repairing wiring, or addressing other related components.

9. Can a DIY enthusiast fix OBDII code P1F5E in a Chevrolet related to the 14 Volt Power Module L-Terminal Circuit High Voltage?

While some basic troubleshooting and repairs may be possible for DIY enthusiasts, diagnosing and repairing electrical issues like this code may require professional expertise and specialized tools.

10. How can regular maintenance help prevent OBDII code P1F5E in a Chevrolet indicating the 14 Volt Power Module L-Terminal Circuit High Voltage?

Regular maintenance, such as checking and cleaning electrical connections, inspecting wiring for damage, and ensuring the battery is in good condition, can help prevent issues that may trigger this code.