AutoCodes – Saturn – P0D09 Saturn

P0D09 Saturn Code - Battery Charging System Positive Contactor Stuck Open

Quick Answer

The hybrid/EV battery contains 4 high voltage contactors and 1 solid state relay (transistor). Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy Control Module 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: P0D09 Saturn indicates Battery Charging System Positive Contactor Stuck Open.
Common causes: Common causes include Faulty Battery Energy Control Module, Battery Energy Control Module harness is open or shorted, Battery Energy Control Module 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 960

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 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0D09 Saturn Description

The hybrid/EV battery contains 4 high voltage contactors and 1 solid state relay (transistor). The high voltage contactors and transistor allow the high voltage DC batteries to be connected to the vehicle or contain the high voltage DC within the hybrid/EV battery assembly. The 4 high voltage contactors consist of a main positive high voltage contactor, main negative high voltage contactor, charge positive high voltage contactor and a precharge negative high voltage contactor. The transistor controls the battery heater high voltage positive circuit. The contactors and transistor close and open in a specific sequence controlled by the hybrid/EV powertrain control module 2. The hybrid/EV powertrain control module 2 supplies voltage to the control circuit for each high voltage contactor/transistor. Ground is provided through a vehicle ground external of the high voltage battery.

OBDII Code P0D09 Saturn - Battery Charging System Positive Contactor Stuck Open - AutoCodes.com — P0D09 Saturn Code - Battery Charging System Positive Contactor Stuck Open

What does this mean?

What are the Possible Causes of the DTC P0D09 Saturn?

Faulty Battery Energy Control Module
Battery Energy Control Module harness is open or shorted
Battery Energy Control Module circuit poor electrical connection

How to Fix the DTC P0D09 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 P0D09 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 P0D09 Saturn 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 P0D09 Saturn Code

1. What are the common symptoms of OBDII code P0D09 on a Saturn related to the Battery Charging System Positive Contactor Stuck Open?

The common symptoms include difficulty starting the vehicle, dimming or flickering lights, and potential warning messages related to the battery system.

2. What can cause the Battery Charging System Positive Contactor to be stuck open in a Saturn?

Potential causes for this issue include a faulty positive contactor, damaged wiring or connections, a problem with the charging system control module, or issues with the battery itself.

3. How serious is the issue of a stuck open positive contactor in the battery charging system of a Saturn?

This issue can lead to a drained battery, difficulty operating the vehicle, and can potentially cause other electrical components to malfunction. It is important to address this problem promptly.

4. Can I continue to drive my Saturn with the Battery Charging System Positive Contactor Stuck Open?

It is not recommended to drive the vehicle with this issue, as it can lead to a dead battery and potential further damage to the electrical system. It's best to address the problem as soon as possible.

5. How can I diagnose the Battery Charging System Positive Contactor Stuck Open issue in my Saturn?

Diagnosing this issue typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the positive contactor and related components, and testing the charging system for proper operation.

6. What are some repair tips for fixing the Battery Charging System Positive Contactor Stuck Open in a Saturn?

Repair tips may include replacing the faulty positive contactor, repairing any damaged wiring or connections, resetting the charging system control module, and ensuring the battery is in good condition.

7. Can a DIY enthusiast fix the Battery Charging System Positive Contactor Stuck Open issue in a Saturn?

While some basic troubleshooting and repairs can be done by a DIY enthusiast, diagnosing and fixing electrical issues like this may require specialized tools and expertise. It's advisable to consult a professional mechanic for proper diagnosis and repair.

8. How much does it cost to repair the Battery Charging System Positive Contactor Stuck Open in a Saturn?

The cost of repair can vary depending on the specific cause of the issue, the parts needed for replacement, and the labor charges. It's recommended to obtain quotes from local mechanics or dealerships for an accurate estimate.

9. What steps can I take to prevent the recurrence of the Battery Charging System Positive Contactor Stuck Open in my Saturn?

Regular maintenance of the charging system, including checking the battery health, inspecting wiring and connections, and addressing any warning signs promptly, can help prevent this issue from occurring again.

10. Is it necessary to clear the OBDII trouble code P0D09 after fixing the Battery Charging System Positive Contactor Stuck Open in a Saturn?

Yes, it is recommended to clear the trouble code using an OBDII scanner after fixing the issue. This will reset the system and allow you to monitor if the problem has been successfully resolved.