AutoCodes – Buick – P0243 Buick

P0243 Buick Code - Supercharger Boost Solenoid Control Circuit

Quick Answer

Output Driver Modules (ODMs) are used by the Powertrain Control Module (PCM) to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Common causes include Faulty Supercharger Boost Solenoid, Supercharger Boost Solenoid harness is open or shorted, Supercharger Boost Solenoid 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: P0243 Buick indicates Supercharger Boost Solenoid Control Circuit.
Common causes: Common causes include Faulty Supercharger Boost Solenoid, Supercharger Boost Solenoid harness is open or shorted, Supercharger Boost Solenoid 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 1,406

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 06, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0243 Buick Description

Output Driver Modules (ODMs) are used by the Powertrain Control Module (PCM) to turn on many of the current-driven devices that are needed to control various engine and transaxle functions. Each ODM is capable of controlling up to 7 separate outputs by applying ground to the device which the PCM is commanding on. Unlike the Quad Driver Modules (QDMs) used in prior model years, ODMs have the capability of diagnosing each output circuit individually. The Diagnostic Trouble Code (DTC) P0243 indicates an improper voltage level has been detected in the supercharger boost control solenoid control circuit. The DTC will be set when an improper voltage level has been detected on the boost control solenoid control circuit for at least 30 seconds.

OBDII Code P0243 Buick - Supercharger Boost Solenoid Control Circuit - AutoCodes.com — P0243 Buick Code - Supercharger Boost Solenoid Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0243 Buick?

Faulty Supercharger Boost Solenoid
Supercharger Boost Solenoid harness is open or shorted
Supercharger Boost Solenoid circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0243 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 P0243 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 P0243 Buick Code

1. What are common symptoms of OBDII code P0243 in a Buick Supercharger Boost Solenoid Control Circuit?

- Common symptoms include reduced engine performance, decreased acceleration, and potential stalling of the vehicle.

2. What causes OBDII code P0243 to trigger in a Buick?

- The code P0243 is typically triggered by issues with the supercharger boost solenoid control circuit, such as wiring problems, a faulty solenoid, or a defective PCM.

3. How can I diagnose the cause of OBDII code P0243 in my Buick?

- To diagnose the issue, you can start by checking the wiring and connections related to the supercharger boost solenoid, testing the solenoid itself for proper function, and using a scan tool to monitor data from the PCM.

4. Can a dirty air filter cause OBDII code P0243 to appear in a Buick?

- While a dirty air filter can affect engine performance, it is not a direct cause of code P0243. This code is specifically related to the supercharger boost solenoid control circuit.

5. How can I repair OBDII code P0243 in a Buick Supercharger Boost Solenoid Control Circuit?

- Repair options include checking and repairing any damaged wiring, replacing the supercharger boost solenoid if faulty, and resetting the trouble code using a scan tool after the repairs are completed.

6. Is it safe to continue driving with OBDII code P0243 present in a Buick?

- It is not recommended to continue driving with this code present, as it can lead to further engine damage and potential safety issues due to decreased engine performance.

7. Can a DIY enthusiast fix OBDII code P0243 in a Buick, or is professional assistance necessary?

- Depending on your automotive repair skills and knowledge, you may be able to diagnose and repair OBDII code P0243 yourself. However, if you are unsure or uncomfortable with the repair process, seeking professional assistance is recommended.

8. Are there any preventive maintenance tips to avoid OBDII code P0243 in a Buick?

- Regularly inspecting and maintaining the supercharger system, including the boost solenoid and related wiring, can help prevent issues that may trigger code P0243.

9. Will disconnecting the battery reset OBDII code P0243 in a Buick?

- Disconnecting the battery may temporarily clear the trouble code, but it is not a permanent solution. It is essential to diagnose and repair the underlying issue causing the code to prevent it from reoccurring.

10. How long does it typically take to repair OBDII code P0243 in a Buick?

- The repair time can vary depending on the specific cause of the code and your level of experience. In general, diagnosing and fixing OBDII code P0243 can take anywhere from a few hours to a full day.