AutoCodes – GMC – P1FF2 GMC

P1FF2 GMC Code - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Performance

Quick Answer

The hybrid battery contains 192 individual cells. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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: P1FF2 GMC indicates Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Performance.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control 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.

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Code Popularity 897

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 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1FF2 GMC Description

The hybrid battery contains 192 individual cells. Two cells are welded together in parallel and called a cell group. There are a total of 96 cell groups in the hybrid battery assembly. These cell groups are electrically connected in series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cell groups are joined to form 3 distinct sections. The first 24 battery cell groups make up battery section 1. This section is adjacent to the cowl and contains battery cell groups 73 through 96. The next 28 battery cell groups make up battery section 2. This section is located behind section 1 and contains battery cell groups 45 through 72. The transverse battery section is section number 3 and it contains the remaining 44 battery cell groups 1 through 44. The battery sections also contain two temperature sensors, with one sensor located at each end of the section.
The battery energy control module monitors the voltage of the 96 battery cell groups. The voltage sense lines are attached to each individual cell group, and these sense lines terminate at a connector located on the top surface of the battery section. A voltage sense harness joins this connector to the battery energy control module.
The battery energy control module contains internal interface control modules that monitor specific cell groups.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1FF2 GMC - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Performance - AutoCodes.com — P1FF2 GMC Code - Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P1FF2 GMC?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P1FF2 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 P1FF2 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 P1FF2 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 P1FF2 GMC Code

1. What are the common symptoms of OBDII code P1FF2 in a GMC Hybrid/EV vehicle?

- Common symptoms include check engine light illuminating, reduced hybrid/EV system performance, and potential loss of power.

2. What can cause the OBDII code P1FF2 related to the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor Performance?

- Possible causes can include a faulty hybrid/EV battery interface control module, issues with the voltage sensor, wiring problems, or a software glitch.

3. How can I diagnose the OBDII code P1FF2 in my GMC Hybrid/EV vehicle?

- Diagnosis typically involves using a professional OBDII scanner to read the code, inspecting the hybrid/EV battery interface control module and voltage sensor, and checking the wiring for any damage.

4. Is it safe to continue driving with the OBDII code P1FF2 present?

- It is not recommended to drive with this code active, as it can lead to potential performance issues and further damage to the hybrid/EV system.

5. Can I repair the OBDII code P1FF2 issue myself?

- While some basic checks like inspecting wiring connections can be done by DIY enthusiasts, diagnosing and repairing issues related to the Hybrid/EV Battery Interface Control Module may require professional expertise.

6. What are the repair options for fixing the OBDII code P1FF2 in a GMC Hybrid/EV vehicle?

- Repair options may include replacing the faulty hybrid/EV battery interface control module, addressing voltage sensor issues, repairing damaged wiring, or updating the software as recommended by the manufacturer.

7. How much does it typically cost to repair the OBDII code P1FF2 issue?

- Repair costs can vary depending on the specific cause of the problem, the extent of the damage, and labor rates. It is advisable to consult with a qualified mechanic for an accurate estimate.

8. Are there any preventive maintenance tips to avoid encountering the OBDII code P1FF2 in the future?

- Regularly servicing the hybrid/EV system, ensuring proper battery maintenance, and addressing any warning signs promptly can help prevent issues that lead to the P1FF2 trouble code.

9. Can the OBDII code P1FF2 be a recurring problem in GMC Hybrid/EV vehicles?

- If the underlying cause of the code is not properly addressed, it can potentially recur. Thorough diagnosis and effective repairs are essential to prevent the code from reoccurring.

10. How important is it to address the OBDII code P1FF2 promptly in a GMC Hybrid/EV vehicle?

- Promptly addressing the P1FF2 trouble code is crucial to prevent further damage to the hybrid/EV system, ensure optimal performance, and maintain the overall safety of the vehicle.