AutoCodes – Buick – P1ED1 Buick

P1ED1 Buick Code - Battery Charger High-Voltage Converter 2 Temperature Sensor Circuit High 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: P1ED1 Buick indicates Battery Charger High-Voltage Converter 2 Temperature Sensor Circuit High 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 789

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 P1ED1 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 P1ED1 Buick - Battery Charger High-Voltage Converter 2 Temperature Sensor Circuit High Voltage - AutoCodes.com — P1ED1 Buick Code - Battery Charger High-Voltage Converter 2 Temperature Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1ED1 Buick?

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

How to Fix the DTC P1ED1 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 P1ED1 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.

Need more information about the P1ED1 Buick code?

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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 P1ED1 Buick Code

1. What does the OBDII code P1ED1 mean for a Buick?

This code indicates a problem with the Battery Charger High-Voltage Converter 2 Temperature Sensor Circuit, specifically detecting a high voltage condition.

2. What are the symptoms of code P1ED1 in a Buick?

Common symptoms include illumination of the check engine light, reduced hybrid or electric performance, potential charging issues, and overheating warnings.

3. What causes the P1ED1 code to appear?

Causes can include a faulty temperature sensor, damaged wiring or connectors, issues with the high-voltage converter, or a software glitch in the vehicle's control module.

4. Can I continue driving my Buick with the P1ED1 code?

Itâ€™s not recommended, as it may lead to overheating of the high-voltage components or further damage to the system.

5. How do you diagnose the P1ED1 code?

A technician will inspect the high-voltage converter temperature sensor, check for damaged wiring or connectors, and use a diagnostic tool to verify the sensor's readings.

6. Is a faulty temperature sensor the only possible cause of the P1ED1 code?

No, it can also be caused by wiring issues, a malfunctioning high-voltage converter, or software-related problems in the control module.

7. What repairs are typically needed to fix the P1ED1 code?

Repairs may include replacing the temperature sensor, repairing or replacing damaged wiring, updating the vehicle's software, or replacing the high-voltage converter if necessary.

8. How much does it cost to fix the P1ED1 code on a Buick?

Costs vary depending on the exact issue, but replacing a sensor or fixing wiring can range from $150 to $500, while converter replacement may cost significantly more.

9. Can a software update resolve the P1ED1 code?

In some cases, a software update may correct false readings or miscommunication between the sensor and the control module.

10. How can I prevent the P1ED1 code from occurring again?

Regular maintenance, inspecting high-voltage system components, and addressing any warning lights promptly can help prevent this code from reappearing.