AutoCodes – Chevrolet – P1ED9 Chevrolet

P1ED9 Chevrolet Code - Battery Charger Converter Input Voltage Sensor 1 Circuit Low Voltage

Quick Answer

The battery charger will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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: P1ED9 Chevrolet indicates Battery Charger Converter Input Voltage Sensor 1 Circuit Low Voltage.
Common causes: Common causes include Faulty Battery Charger, Battery Charger harness is open or shorted, Battery Charger 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 916

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 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1ED9 Chevrolet Description

The battery charger will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery charger to the hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for Diagnostic Trouble Code (DTC) information. This DTC is for the battery charger are internal measurements that verify the charger is performing properly. The battery charger measures internal voltages, currents, and temperatures and verifies they are within the proper range.

OBDII Code P1ED9 Chevrolet - Battery Charger Converter Input Voltage Sensor 1 Circuit Low Voltage - AutoCodes.com — P1ED9 Chevrolet Code - Battery Charger Converter Input Voltage Sensor 1 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1ED9 Chevrolet?

Faulty Battery Charger
Battery Charger harness is open or shorted
Battery Charger circuit poor electrical connection

How to Fix the DTC P1ED9 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 P1ED9 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.

Need more information about the P1ED9 Chevrolet code?

Need more information on how to fix the P1ED9 Chevrolet code? Get Access to Factory Service Manuals

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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 P1ED9 Chevrolet Code

1. What does the OBDII code P1ED9 mean on a Chevrolet?

P1ED9 indicates a problem with the Battery Charger Converter Input Voltage Sensor 1 Circuit, specifically detecting low voltage in the circuit.

2. What are the symptoms of code P1ED9 in a Chevrolet?

Common symptoms include an illuminated check engine light, reduced charging performance, issues with hybrid or electric vehicle operation, and possible battery-related warnings.

3. What causes the P1ED9 code to appear in a Chevrolet?

Possible causes include a faulty voltage sensor, damaged wiring or connectors, a failing battery charger converter, or a malfunction in the hybrid/EV control module.

4. Can a low or weak battery trigger the P1ED9 code?

Yes, a weak or low-voltage battery can cause the code to appear, as it may affect the input voltage sensor readings.

5. How can I fix the P1ED9 code on a Chevrolet?

Start by inspecting the wiring and connectors for damage or corrosion. If no issues are found, test the voltage sensor and replace it if necessary. Further diagnosis may require testing the battery charger converter.

6. Is it safe to drive with a P1ED9 code on a Chevrolet?

While the vehicle may still be drivable, ignoring the issue could lead to reduced charging efficiency or further damage to the electrical system, especially in hybrid or electric vehicles.

7. How is the P1ED9 code diagnosed on a Chevrolet?

A technician will use a scan tool to check for related codes, inspect the wiring and connectors, and test the battery charger converter and voltage sensor for proper operation.

8. Can a software update fix the P1ED9 code on a Chevrolet?

In some cases, a software update to the hybrid/EV control module may resolve the issue if itâ€™s caused by a programming glitch. Check with your dealer for any available updates.

9. What tools are needed to troubleshoot the P1ED9 code?

Tools may include a diagnostic scan tool, a multimeter for testing voltage and continuity, and possibly a service manual for wiring diagrams and specifications.

10. How much does it cost to repair a P1ED9 code on a Chevrolet?

Repair costs vary depending on the specific cause. Replacing a voltage sensor may cost $100-$300, while more complex issues like a faulty charger converter could exceed $1,000.