C0247 GMC Code - Left Front Isolation Solenoid Circuit Shorted
Quick Answer
The C0247 code indicates a fault in the left front isolation solenoid circuit, specifically a short circuit condition. Common causes include Wiring Issues: Damaged or frayed wiring in the solenoid circuit can create a short, leading to the C0247 code, Corroded Connectors: Corrosion at the electrical connectors can disrupt the circuit, causing a short condition, Faulty Isolation Solenoid: A malfunctioning isolation solenoid may short internally, triggering the code. 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
- C0247 GMC indicates Left Front Isolation Solenoid Circuit Shorted.
- Common causes
- Common causes include Wiring Issues: Damaged or frayed wiring in the solenoid circuit can create a short, leading to the C0247 code, Corroded Connectors: Corrosion at the electrical connectors can disrupt the circuit, causing a short condition, Faulty Isolation Solenoid: A malfunctioning isolation solenoid may short internally, triggering the code.
- 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 C0247 GMC Description
The C0247 code indicates a fault in the left front isolation solenoid circuit, specifically a short circuit condition. This solenoid is part of the vehicle's anti-lock braking system (ABS) and is responsible for controlling the hydraulic pressure to the left front brake. When the ABS system detects a fault in the solenoid circuit, it triggers this diagnostic trouble code (DTC).
Common Causes of C0247 GMC
- Wiring Issues: Damaged or frayed wiring in the solenoid circuit can create a short, leading to the C0247 code.
- Corroded Connectors: Corrosion at the electrical connectors can disrupt the circuit, causing a short condition.
- Faulty Isolation Solenoid: A malfunctioning isolation solenoid may short internally, triggering the code.
- ABS Module Failure: A failure in the ABS control module can lead to erroneous readings and trigger the C0247 code.
- Moisture Intrusion: Water or moisture entering the electrical components can cause short circuits and affect the solenoid's operation.
Symptoms of C0247 GMC
- Illuminated ABS Warning Light: The ABS light on the dashboard may illuminate, indicating a fault in the braking system.
- Erratic Brake Performance: Drivers may notice inconsistent braking behavior, such as the ABS activating during normal braking or a lack of ABS engagement in slippery conditions.
- Increased Stopping Distance: The vehicle may take longer to stop, especially during hard braking, due to the malfunctioning ABS system.
- Brake Pedal Pulsation: The brake pedal may pulsate or feel different when the ABS attempts to engage, even in normal driving conditions.
- Diagnostic Trouble Code (DTC) Reading: When scanned, the vehicle's onboard diagnostics will return the C0247 code, confirming the issue with the left front isolation solenoid circuit.
How to Fix C0247 GMC
- Visual Inspection: Begin with a thorough visual inspection of the wiring and connectors associated with the left front isolation solenoid. Look for signs of damage, corrosion, or loose connections.
- Test the Solenoid: Use a multimeter to test the isolation solenoid for proper resistance and functionality. If the solenoid is found to be faulty, it will need replacement.
- Repair Wiring: If damaged wiring is identified, repair or replace the affected sections to restore proper electrical continuity.
- Clean Connectors: Clean any corroded connectors with electrical contact cleaner to ensure a solid connection and prevent future issues.
- Clear Codes and Test Drive: After repairs, clear the diagnostic trouble codes using a scan tool and perform a test drive to confirm that the ABS system is functioning correctly and that the C0247 code does not reappear.
Cost to Fix C0247 GMC
The typical repair costs for addressing the C0247 code can vary widely based on the specific diagnosis and repairs needed. A rough estimate for parts and labor may range from $150 to $600. This includes the cost of the isolation solenoid (if replacement is necessary), wiring repairs, and labor charges.
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Frequently Asked Questions about C0247 GMC Code
1. What are the common symptoms of OBDII code C0247 GMC (Left Front Isolation Solenoid Circuit Shorted)?
- Common symptoms include the ABS warning light illuminating on the dashboard, potential loss of ABS functionality, and possible issues with traction control.
2. What can cause the OBDII code C0247 GMC to trigger?
- The code may be triggered by a short circuit in the wiring, a faulty isolation solenoid, or a malfunction in the ABS module.
3. How serious is the OBDII code C0247 GMC?
- While the vehicle may still be operable with this code present, it is important to address it promptly to ensure the ABS system functions properly in case of emergencies.
4. Can I still drive my vehicle with the OBDII code C0247 GMC active?
- It is generally safe to drive the vehicle with this code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent potential ABS system malfunctions.
5. How can I diagnose the cause of OBDII code C0247 GMC?
- Diagnosing this code typically involves using a scan tool to retrieve the code, inspecting the wiring and connections related to the left front isolation solenoid, and testing the solenoid itself for proper function.
6. What are some repair tips for addressing OBDII code C0247 GMC?
- Repair tips may include checking and repairing any damaged wiring, replacing the left front isolation solenoid if faulty, or reprogramming the ABS module if necessary.
7. Can I reset the OBDII code C0247 GMC on my own?
- While you can clear the code with an OBDII scanner, it is important to address the underlying issue causing the code before resetting it to prevent it from coming back.
8. How much does it typically cost to repair OBDII code C0247 GMC?
- The cost of repair can vary depending on the specific cause of the code, but it may involve expenses for parts replacement, labor, and diagnostic services.
9. Are there any recalls or technical service bulletins related to OBDII code C0247 GMC?
- It is recommended to check with your local GMC dealership or online resources to see if there are any relevant recalls or technical service bulletins addressing this specific OBDII code.
10. Is it possible for DIY enthusiasts to fix OBDII code C0247 GMC at home?
- While some experienced DIYers may be able to address this code at home, it is generally recommended to seek professional help, especially when dealing with ABS system components.
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