P1E01 Chevrolet Code - Hybrid/Electric Vehicle Battery 95 Circuit Performance
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
- P1E01 Chevrolet indicates Hybrid/Electric Vehicle Battery 95 Circuit Performance.
- 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 P1E01 Chevrolet 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 P1E01 Chevrolet?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P1E01 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 P1E01 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.
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Frequently Asked Questions about P1E01 Chevrolet Code
1. What does the OBDII code P1E01 mean on a Chevrolet?
P1E01 indicates an issue with the Hybrid/Electric Vehicle (HV) battery circuit, specifically related to its performance or communication.
2. What are common symptoms of the P1E01 code in a Chevrolet vehicle?
Symptoms may include a check engine light, reduced power mode, poor acceleration, or the inability to switch between electric and hybrid modes.
3. What causes the P1E01 code to appear on a Chevrolet hybrid or EV?
Common causes include a faulty HV battery, damaged wiring or connectors, a malfunctioning battery control module, or software issues.
4. Can you still drive a Chevrolet with the P1E01 code?
While the vehicle may still drive, it could enter reduced power mode or cause long-term damage if not addressed promptly.
5. How is the P1E01 code diagnosed in a Chevrolet vehicle?
A technician will use a scan tool to check for additional codes, inspect HV battery components, and test the wiring and control module for faults.
6. Can a weak 12V battery cause the P1E01 code to trigger?
Yes, in some cases, a weak or failing 12V battery can disrupt communication with the HV battery and trigger this code.
7. What repairs are typically needed to fix the P1E01 code?
Repairs might include replacing the HV battery, fixing or replacing damaged wiring, reprogramming the battery control module, or addressing software updates.
8. How much does it cost to fix the P1E01 code on a Chevrolet?
The cost can vary widely depending on whether the HV battery needs replacement or if simpler repairs like wiring fixes are sufficient, ranging from several hundred to several thousand dollars.
9. Is the P1E01 code covered under warranty for Chevrolet hybrid or electric vehicles?
It might be covered if the vehicle is under the manufacturer’s hybrid/EV battery warranty, which often extends longer than the standard warranty.
10. Can a software update resolve the P1E01 code on a Chevrolet?
In some cases, a software update for the battery control module may resolve the issue without requiring hardware repairs.
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