AutoCodes – Buick – P1EDC Buick

P1EDC Buick Code - Battery Charger Converter Input Voltage Sensor 2 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: P1EDC Buick indicates Battery Charger Converter Input Voltage Sensor 2 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 815

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 P1EDC Buick 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 P1EDC Buick - Battery Charger Converter Input Voltage Sensor 2 Circuit Low Voltage - AutoCodes.com — P1EDC Buick Code - Battery Charger Converter Input Voltage Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1EDC Buick?

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

How to Fix the DTC P1EDC 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 P1EDC 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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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 P1EDC Buick Code

1. What does the OBDII code P1EDC mean on a Buick?

P1EDC indicates a problem with the Battery Charger Converter Input Voltage Sensor 2 Circuit, specifically that it is detecting low voltage.

2. What are the symptoms of code P1EDC in a Buick?

Symptoms may include reduced charging system performance, a warning light on the dashboard, difficulty starting the vehicle, or improper operation of hybrid or electric vehicle systems.

3. What causes the P1EDC code to trigger?

Common causes include a faulty voltage sensor, damaged wiring or connectors, a malfunctioning battery charger converter, or a low system voltage issue.

4. Can a bad battery cause the P1EDC code?

Yes, a weak or failing battery can result in low voltage readings, which may trigger the P1EDC code.

5. How is the P1EDC code diagnosed?

A technician will use a diagnostic scanner to confirm the code, inspect the voltage sensor and related wiring, and test the battery and charging system to identify the root cause.

6. Can I drive my Buick with the P1EDC code active?

Driving with this code active is not recommended, as it may lead to further electrical issues or cause the vehicle to lose power unexpectedly.

7. How do you fix the P1EDC code on a Buick?

Repairs may involve replacing the faulty voltage sensor, repairing damaged wiring or connectors, recharging or replacing the battery, or addressing issues with the battery charger converter.

8. How much does it cost to fix the P1EDC code on a Buick?

Repair costs can vary depending on the cause, but sensor replacement typically ranges from $150 to $400, while more extensive repairs to the charging system may cost more.

9. Will disconnecting the battery clear the P1EDC code?

Disconnecting the battery may temporarily clear the code, but it will likely return if the underlying issue is not resolved.

10. Is the P1EDC code specific to hybrid or electric Buicks?

Yes, this code is often associated with hybrid or electric vehicles, as it pertains to the battery charger converter system, which is crucial for these types of vehicles.