P1BFE Cadillac Code - Hybrid/Electric Vehicle Battery 94 Circuit High Voltage
Quick Answer
The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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
- P1BFE Cadillac indicates Hybrid/Electric Vehicle Battery 94 Circuit High Voltage.
- Common causes
- Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
- 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 P1BFE Cadillac Description
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
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 hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.
What are the Possible Causes of the DTC P1BFE Cadillac?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P1BFE Cadillac?
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 P1BFE Cadillac 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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Frequently Asked Questions about P1BFE Cadillac Code
What does OBDII code P1BFE mean for a Cadillac?
Code P1BFE indicates an issue with the Hybrid/Electric Vehicle Battery 94 Circuit, specifically that it is detecting a high voltage condition.
What are the symptoms of code P1BFE in a Cadillac?
Common symptoms include reduced hybrid system performance, warning lights on the dashboard, and potential issues with charging or battery operation.
What causes code P1BFE in a Cadillac?
The primary causes of P1BFE are faulty battery modules, damaged wiring, poor electrical connections, or issues with the battery management system.
Can I drive my Cadillac with code P1BFE active?
It is not recommended to drive with this code active, as it could lead to further damage to the hybrid battery system or reduced vehicle performance.
How is code P1BFE diagnosed in a Cadillac?
A technician will use a scan tool to read the code, inspect the battery wiring and connections, test the voltage levels, and check the battery management system for faults.
What repairs are needed to fix code P1BFE on a Cadillac?
Repairs may include replacing damaged battery modules, repairing or replacing wiring, cleaning and securing electrical connections, or updating the battery control module software.
Can a weak 12-volt battery cause code P1BFE?
While unlikely, a weak 12-volt battery can sometimes contribute to electrical issues, so it’s worth checking and replacing if needed.
How much does it cost to repair code P1BFE on a Cadillac?
The cost varies depending on the exact issue, but repairs could range from $200 for minor wiring fixes to over $1,000 for battery module replacements.
Will clearing the code fix the problem permanently?
Clearing the code without addressing the root cause will only temporarily remove the warning, and the issue is likely to return.
Is code P1BFE covered under Cadillac’s hybrid battery warranty?
It may be covered if the vehicle is within the warranty period for the hybrid or EV battery system. Check with your Cadillac dealer for details.
Discuss the causes and fixes for P1BFE Cadillac OBDII Code
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