AutoCodes – Saturn – P1ED9 Saturn

P1ED9 Saturn 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 Saturn 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 737

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

What does this mean?

What are the Possible Causes of the DTC P1ED9 Saturn?

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

How to Fix the DTC P1ED9 Saturn?

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 Saturn 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 Saturn code?

Need more information on how to fix the P1ED9 Saturn 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 Saturn Code

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

P1ED9 indicates a "Battery Charger Converter Input Voltage Sensor 1 Circuit Low Voltage," which suggests an issue with the low voltage reading from the sensor monitoring the charging system's input.

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

Symptoms may include the check engine light turning on, reduced charging performance, limited vehicle power, or potential issues with the hybrid or electric system if applicable.

3. What causes the P1ED9 code to appear?

Possible causes include a faulty voltage sensor, damaged wiring or connectors, an issue with the battery charger converter, or a malfunction in the powertrain control module (PCM).

4. Can driving with a P1ED9 code cause further damage to my Saturn?

Yes, continued driving may lead to improper battery charging or electrical system failures, potentially causing further damage to the vehicle's components.

5. How do I diagnose the P1ED9 code in a Saturn?

Diagnosis involves inspecting the voltage sensor and its wiring for damage, checking the battery charger converter's output, and using a scan tool to verify sensor readings.

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

Youâ€™ll need an OBDII scanner, a multimeter to check voltage, and possibly wiring diagrams to inspect the sensor circuit.

7. How can the P1ED9 code be fixed?

Repairs may include replacing the faulty voltage sensor, fixing or replacing damaged wiring, or repairing/replacing the battery charger converter.

8. Is the P1ED9 code specific to Saturn vehicles?

While P1ED9 is a generic OBDII code, it often pertains to Saturn vehicles with hybrid or electric systems, as it involves the battery charger and input voltage sensor.

9. Can a weak or failing battery trigger the P1ED9 code?

Yes, a weak or failing battery can cause voltage irregularities, potentially triggering this code.

10. How much does it cost to fix the P1ED9 code on a Saturn?

Repair costs vary but typically range from $100 to $500, depending on whether itâ€™s a sensor replacement, wiring repair, or more extensive work on the charger converter.