P1E64 Buick Code - Hybrid/Electric Vehicle Battery 57 Circuit
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
- P1E64 Buick indicates Hybrid/Electric Vehicle Battery 57 Circuit.
- 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 P1E64 Buick 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 P1E64 Buick?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P1E64 Buick?
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 P1E64 Buick 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 P1E64 Buick Code
1. What does the OBDII code P1E64 mean for a Buick?
Code P1E64 indicates an issue with the Hybrid/Electric Vehicle Battery 57 Circuit, which may affect the high-voltage battery’s operation or its monitoring system.
2. What are common symptoms of code P1E64 in a Buick?
Symptoms may include reduced fuel efficiency, limited electric driving capability, a warning light on the dashboard, or the vehicle entering limp mode.
3. What causes code P1E64 to appear in a Buick?
Common causes include damaged wiring or connectors in the battery circuit, a faulty battery module, or issues with the battery management system.
4. Can code P1E64 damage my Buick if left unresolved?
Yes, ignoring this code could lead to reduced performance, strain on the hybrid system, and potential damage to the high-voltage battery.
5. How do you diagnose code P1E64 in a Buick?
Diagnosis typically involves inspecting the battery circuit wiring, testing the battery modules, and using a scan tool to check for related codes or data anomalies.
6. Can I drive my Buick with code P1E64 active?
It’s not recommended, as the vehicle may experience limited performance or safety risks due to compromised battery operation.
7. How do you fix code P1E64 on a Buick?
Repairs may include replacing damaged wiring or connectors, repairing or replacing faulty battery modules, and updating the battery management system software.
8. Is code P1E64 specific to Buick hybrid or electric vehicles?
Yes, this code is specifically related to Buick models equipped with hybrid or electric powertrains and their high-voltage battery systems.
9. Will clearing code P1E64 solve the issue?
Clearing the code without addressing the root cause will not fix the problem and the code is likely to return.
10. How much does it cost to repair code P1E64 on a Buick?
Repair costs vary depending on the specific issue, with wiring repairs being relatively inexpensive, while battery module replacement can be costly.
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