AutoCodes – Chevrolet – P1E52 Chevrolet

P1E52 Chevrolet Code - Hybrid/Electric Vehicle Battery 39 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: P1E52 Chevrolet indicates Hybrid/Electric Vehicle Battery 39 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.

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Code Popularity 765

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 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E52 Chevrolet Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack 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 cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
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.

OBDII Code P1E52 Chevrolet - Hybrid/Electric Vehicle Battery 39 Circuit - AutoCodes.com — P1E52 Chevrolet Code - Hybrid/Electric Vehicle Battery 39 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E52 Chevrolet?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1E52 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 P1E52 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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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 P1E52 Chevrolet Code

1. What does the OBDII code P1E52 mean on a Chevrolet?

P1E52 indicates a fault in the Hybrid/Electric Vehicle Battery 39 Circuit, which typically relates to an issue with the high-voltage battery or its associated wiring.

2. What are the common symptoms of code P1E52?

Symptoms may include the check engine light turning on, reduced vehicle performance, limited or no electric propulsion, and warning messages related to the hybrid system.

3. What causes the P1E52 code to appear?

The code can be triggered by faulty wiring or connectors in the battery circuit, a malfunctioning battery module, or issues with the hybrid battery control module.

4. Can I still drive my car with the P1E52 code?

It is not recommended to drive with this code, as it can lead to reduced power or further damage to the hybrid system. Have the issue diagnosed and repaired as soon as possible.

5. How is the P1E52 code diagnosed?

A technician will use a scan tool to read the code, inspect the battery circuit wiring and connectors, and perform voltage and resistance tests on the affected circuit.

6. What are the repair options for a P1E52 code?

Repairs may involve replacing damaged wiring, repairing faulty connectors, or replacing the malfunctioning battery module or hybrid battery control module.

7. Can a weak high-voltage battery cause the P1E52 code?

Yes, a degraded or failing high-voltage battery can cause this code, as it might affect the performance of the battery circuit.

8. How much does it cost to fix the P1E52 code?

Repair costs vary but may range from $200 for minor wiring repairs to over $1,000 if the battery module or control module needs replacement.

9. Is the P1E52 code specific to Chevrolet vehicles?

While P1E52 is most commonly associated with Chevrolet hybrid or electric vehicles, other manufacturers may use similar codes for hybrid battery issues.

10. Can I reset the P1E52 code without repairs?

Clearing the code without addressing the underlying issue may cause it to return and could lead to further hybrid system problems. Always fix the root cause before resetting the code.