P1248 2017 GMC Sierra Code - Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The OBD-II trouble code P1248 for a 2017 GMC Sierra indicates an issue with the Injector 1 Positive Voltage Control Circuit being shorted to the control circuit. Common causes include Wiring harness damage or wear, Faulty fuel injector, Faulty engine control module (ECM). 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
- P1248 2017 GMC Sierra indicates Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Wiring harness damage or wear, Faulty fuel injector, Faulty engine control module (ECM).
- 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 P1248 2017 GMC Sierra Description
The OBD-II trouble code P1248 for a 2017 GMC Sierra indicates an issue with the Injector 1 Positive Voltage Control Circuit being shorted to the control circuit. This means that there is a problem with the electrical circuit that controls the operation of the fuel injector for cylinder 1 in the engine. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time for efficient engine operation.
Common Causes of P1248 2017 GMC Sierra
- Wiring harness damage or wear
- Faulty fuel injector
- Faulty engine control module (ECM)
- Poor electrical connection in the circuit
- Corrosion in electrical components
Symptoms of P1248 2017 GMC Sierra
- Rough engine operation
- Misfires
- Poor acceleration
- Stalling
- Illumination of the Check Engine Light
How to Fix P1248 2017 GMC Sierra
- Diagnose the issue with a scan tool to confirm the P1248 code and pinpoint the exact cause of the short circuit.
- Inspect the wiring harness and connectors for any signs of damage, wear, or corrosion. Repair or replace as needed.
- Test the fuel injector for proper operation and replace if faulty.
- Check the engine control module (ECM) for any issues and replace if necessary.
- Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1248 2017 GMC Sierra
The cost of repairing the Injector 1 Positive Voltage Control Circuit shorted to Control Circuit issue on a 2017 GMC Sierra can vary depending on the exact cause of the problem and the labor rates at the auto repair shop. In general, the cost of parts for this repair could range from $100 to $500, with labor costs adding an additional $100 to $300. Overall, the total repair cost could range from $200 to $800. It's important to note that actual costs may vary based on location, vehicle make and model, and the specific diagnosis and repair process required. It's recommended to obtain quotes from local auto repair shops for a more accurate estimate.
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Frequently Asked Questions about P1248 2017 GMC Sierra Code
1. What does the OBDII code P1248 mean on a 2017 GMC Sierra?
P1248 indicates that the Injector 1 Positive Voltage Control Circuit is shorted to the control circuit, which affects the proper functioning of the fuel injector.
2. What are the common symptoms of code P1248 in a 2017 GMC Sierra?
Symptoms may include rough idling, a misfiring engine, reduced fuel efficiency, poor acceleration, and the check engine light being illuminated.
3. What causes the P1248 code in a 2017 GMC Sierra?
Common causes include damaged or corroded wiring, a short circuit in the injector circuit, a faulty fuel injector, or a malfunctioning engine control module (ECM).
4. Can a bad fuel injector cause the P1248 code on a 2017 GMC Sierra?
Yes, a malfunctioning or shorted fuel injector can trigger the P1248 code, as it disrupts the voltage control circuit.
5. How can I diagnose the P1248 code on my 2017 GMC Sierra?
Start by inspecting the wiring and connectors for damage or corrosion, testing the injector with a multimeter, and checking for shorts in the circuit. A scan tool can also help monitor injector performance.
6. Is it safe to drive my 2017 GMC Sierra with the P1248 code?
Driving with this code is not recommended, as it can lead to poor engine performance, increased fuel consumption, and potential damage to other engine components.
7. How do I fix the P1248 code on a 2017 GMC Sierra?
Repairs may include replacing damaged wiring or connectors, repairing a short in the circuit, replacing the faulty injector, or reprogramming or replacing the ECM if necessary.
8. How much does it cost to repair the P1248 code on a 2017 GMC Sierra?
Costs vary depending on the issue. Wiring repairs may cost $100-$300, while replacing an injector can range from $200-$500. ECM replacement or reprogramming can cost $500 or more.
9. Can a faulty ECM cause the P1248 code on a 2017 GMC Sierra?
Yes, a malfunctioning ECM can fail to regulate the injector voltage, potentially causing the P1248 code.
10. Do I need a professional mechanic to fix the P1248 code on my 2017 GMC Sierra?
If the issue involves complex diagnostics, such as testing circuits or replacing the ECM, it’s recommended to consult a professional mechanic to ensure proper repairs.
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