AutoCodes – Chevrolet – P1E0C Chevrolet

P1E0C Chevrolet Code - Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage

Quick Answer

Vehicles equipped with high voltage storage and propulsion capability are designed with high voltage circuits isolated from the vehicle chassis. Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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: P1E0C Chevrolet indicates Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage.
Common causes: Common causes include Faulty Hybrid/EV Powertrain Control Module 2, Hybrid/EV Powertrain Control Module 2 harness is open or shorted, Hybrid/EV Powertrain Control Module 2 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 510

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 Jul 26, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E0C Chevrolet Description

Vehicles equipped with high voltage storage and propulsion capability are designed with high voltage circuits isolated from the vehicle chassis. If either the positive or negative high voltage Direct Current (DC) circuits or any of the high voltage Alternating Current (AC) phase circuits lose this isolation to the vehicle chassis, one or more Diagnostic Trouble Codes (DTC) may be set.
The Hybrid/EV Powertrain Control Module 2 performs active isolation testing to monitor the internal Hybrid/EV battery pack HV circuits for chassis isolation. The Hybrid/EV Powertrain Control Module 2 switches fixed resistors between the high voltage system and vehicle chassis. The difference between the switched-to-chassis state and the unswitched state is used to calculate a resistance-to-chassis value. The DTC will be set when the Isolation sensor voltage is greater than 333 V.

OBDII Code P1E0C Chevrolet - Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage - AutoCodes.com — P1E0C Chevrolet Code - Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1E0C Chevrolet?

Faulty Hybrid/EV Powertrain Control Module 2
Hybrid/EV Powertrain Control Module 2 harness is open or shorted
Hybrid/EV Powertrain Control Module 2 circuit poor electrical connection

How to Fix the DTC P1E0C 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 P1E0C 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 P1E0C Chevrolet Code

1. What are the common symptoms of OBDII code P1E0C in a Chevrolet related to the Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage?

The common symptoms include reduced hybrid system performance, check engine light illuminated, and potential difficulty starting the vehicle.

2. What are the possible causes of the OBDII code P1E0C in a Chevrolet indicating Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage?

Possible causes include a faulty isolation sensor, damaged wiring or connectors in the sensing circuit, or issues with the hybrid/EV battery pack.

3. How can I diagnose the Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage issue causing OBDII code P1E0C in my Chevrolet?

Diagnosis involves using a multimeter to test the voltage at various points in the circuit, inspecting the wiring and connectors for damage, and checking the isolation sensor for proper functioning.

4. What are some repair tips for fixing OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet?

Repair tips include repairing or replacing damaged wiring and connectors, testing and replacing the isolation sensor if necessary, and ensuring all connections are secure.

5. Can driving with OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage cause further damage to my Chevrolet?

Continued driving with this code can potentially lead to further damage to the hybrid system components and may affect the overall performance of the vehicle.

6. How critical is it to address the OBDII code P1E0C indicating Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet promptly?

It is important to address this code promptly to avoid potential damage to the hybrid system components and ensure the vehicle operates at peak performance.

7. Are there any safety concerns associated with OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet?

While there are no immediate safety concerns, addressing the issue promptly can prevent potential issues with the hybrid system that may impact vehicle operation.

8. Is it possible to reset the OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet without making any repairs?

Resetting the code without addressing the underlying issue will not fix the problem and the code is likely to reappear once the system detects the fault again.

9. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet?

Depending on the specific issue, a DIY enthusiast with basic automotive knowledge may be able to diagnose and repair the problem, but more complex issues may require professional assistance.

10. How can regular maintenance help prevent issues like OBDII code P1E0C related to Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage in a Chevrolet?

Regular maintenance, including inspections of the hybrid system components, can help identify and address potential issues before they trigger fault codes like P1E0C, ensuring the vehicle operates smoothly.