P1248 2015 GMC Sierra Code - Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. Common causes include Faulty Fuel Injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 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
- P1248 2015 GMC Sierra indicates Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 1, Fuel Injector 1 harness is open or shorted, Fuel Injector 1 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.
Code P1248 2015 GMC Sierra Description
What are the Possible Causes of the DTC P1248 2015 GMC Sierra?
- Faulty Fuel Injector 1
- Fuel Injector 1 harness is open or shorted
- Fuel Injector 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1248 2015 GMC Sierra?
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 P1248 2015 GMC Sierra 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 P1248 2015 GMC Sierra code?
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Frequently Asked Questions about P1248 2015 GMC Sierra Code
What does the OBDII code P1248 mean on a 2015 GMC Sierra?
P1248 indicates an issue with the positive voltage control circuit in injector 1, specifically a short between the positive voltage control circuit and the control circuit.
What are the common symptoms of code P1248 on a 2015 GMC Sierra?
Symptoms may include rough engine idle, misfires, reduced engine power, poor fuel economy, and the Check Engine Light being illuminated.
What causes the P1248 code to appear on a 2015 GMC Sierra?
Common causes include damaged or corroded wiring, a short circuit in the injector wiring harness, a faulty fuel injector, or an issue with the engine control module (ECM).
Can a faulty fuel injector cause the P1248 code?
Yes, a faulty fuel injector that creates a short circuit can trigger the P1248 code.
How can I diagnose the P1248 code on my 2015 GMC Sierra?
Diagnose the issue by inspecting the wiring and connectors for damage, testing the fuel injector for internal shorts, and using a multimeter to check for continuity or shorts in the circuit.
Is it safe to drive with the P1248 code on a 2015 GMC Sierra?
Driving with this code may lead to further damage to the engine or other components, so it is recommended to address the issue as soon as possible.
How much does it cost to repair the P1248 code on a 2015 GMC Sierra?
Repair costs can vary, typically ranging from $150 to $500, depending on whether the issue lies with the wiring, injector, or ECM.
Can I fix the P1248 code myself?
If you have experience with automotive electrical systems, you can inspect wiring and connectors or replace the injector. However, more complex issues may require professional assistance.
What tools are needed to troubleshoot the P1248 code?
Common tools include an OBDII scanner, a multimeter for checking voltage and continuity, and basic hand tools for inspecting and replacing components.
Will clearing the P1248 code fix the problem permanently?
Clearing the code will turn off the Check Engine Light temporarily, but the issue will persist until the underlying cause is repaired.
Discuss the causes and fixes for P1248 2015 GMC Sierra OBDII Code
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