AutoCodes – GMC – P1F02 GMC

P1F02 GMC Code - Battery Charger Control Module Supply Voltage Sensor Circuit High Voltage

Quick Answer

The battery charger will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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: P1F02 GMC indicates Battery Charger Control Module Supply Voltage Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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 773

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1F02 GMC Description

The battery charger will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery charger to the hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for Diagnostic Trouble Code (DTC) information. This DTC is for the battery charger are internal measurements that verify the charger is performing properly. The battery charger measures internal voltages, currents, and temperatures and verifies they are within the proper range.

OBDII Code P1F02 GMC - Battery Charger Control Module Supply Voltage Sensor Circuit High Voltage - AutoCodes.com — P1F02 GMC Code - Battery Charger Control Module Supply Voltage Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1F02 GMC?

Faulty Battery Charger
Battery Charger harness is open or shorted
Battery Charger circuit poor electrical connection

How to Fix the DTC P1F02 GMC?

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 P1F02 GMC 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 P1F02 GMC code?

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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 P1F02 GMC Code

1. What does the OBDII code P1F02 mean on a GMC vehicle?

The P1F02 code indicates a high voltage issue in the Battery Charger Control Module Supply Voltage Sensor Circuit.

2. What are the common symptoms of the P1F02 code in GMC vehicles?

Symptoms may include the check engine light turning on, reduced charging system performance, or issues with hybrid or EV battery charging.

3. What causes the P1F02 code to appear in a GMC?

Common causes include a faulty battery charger control module, damaged wiring or connectors, or a sensor malfunction in the supply voltage circuit.

4. Can I drive my GMC vehicle with the P1F02 code active?

Driving is possible but not recommended, especially if the charging system is affected, as it could lead to further damage or reduced vehicle performance.

5. How do I diagnose the P1F02 code on a GMC?

Diagnosis involves inspecting the wiring and connectors for damage, testing the voltage sensor circuit, and using a scan tool to monitor the battery charger control module.

6. How can I fix the P1F02 code on my GMC vehicle?

Repairs may include replacing damaged wiring, repairing or replacing the voltage sensor, or replacing the battery charger control module if itâ€™s faulty.

7. What tools are needed to troubleshoot the P1F02 code?

A diagnostic scan tool, multimeter, and wiring diagram specific to your GMC model are typically needed for troubleshooting.

8. Is the P1F02 code specific to hybrid or electric GMC vehicles?

Yes, this code is more commonly found in hybrid or electric GMC vehicles, as it relates to the battery charger control system.

9. How much does it cost to repair the P1F02 code in a GMC?

Repair costs vary depending on the underlying issue but can range from $100 for minor wiring repairs to over $1,000 if the battery charger control module needs replacement.

10. Can a low 12-volt battery cause the P1F02 code to trigger?

Yes, a weak or failing 12-volt battery can sometimes cause voltage-related issues that trigger this code, so itâ€™s worth checking the battery as part of the diagnosis.