AutoCodes – Saturn – P1FF2 Saturn

P1FF2 Saturn 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 Saturn 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 896

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

What does this mean?

What are the Possible Causes of the DTC P1FF2 Saturn?

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 Saturn?

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 Saturn 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 Saturn 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 Saturn Code

1. What does the OBDII code P1FF2 mean on a Saturn vehicle?

It indicates a performance issue with the Hybrid/EV Battery Interface Control Module 10 Voltage Sensor, which monitors the voltage of a specific battery module or circuit.

2. What are common symptoms of the P1FF2 code?

Symptoms may include a check engine light, reduced fuel efficiency, limited hybrid/EV performance, or the vehicle entering a fail-safe mode.

3. What causes the P1FF2 code to appear?

Potential causes include a faulty voltage sensor, wiring issues, poor connections, or a malfunction in the battery interface control module.

4. Can I drive my Saturn with the P1FF2 code?

Itâ€™s not recommended, as it could lead to reduced hybrid/EV performance or further damage to the battery system.

5. How is the P1FF2 code diagnosed?

A technician will use a diagnostic scanner to read the code, inspect the battery interface control module, test the voltage sensor, and check the wiring and connections.

6. How do I fix the P1FF2 code on my Saturn?

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

7. Is the P1FF2 code specific to Saturn hybrid or EV models?

Yes, this code is typically specific to Saturn hybrid or electric vehicles that use a battery interface control module.

8. Can a weak hybrid/EV battery cause the P1FF2 code?

While uncommon, a degraded or imbalanced battery pack could contribute to voltage sensor performance issues.

9. How much does it cost to repair the P1FF2 code on a Saturn?

Repair costs vary depending on the issue, but replacing a voltage sensor or repairing wiring typically costs $200-$500, while replacing the control module can be more expensive.

10. Can a software update fix the P1FF2 code?

In rare cases, a software update to the battery control system may resolve the issue, but this is less common than hardware repairs.