P1248 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P1248 2016 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 2016 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 2016 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.
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Frequently Asked Questions about P1248 2016 GMC Sierra Code
What does the OBDII code P1248 mean on a 2016 GMC Sierra?
P1248 indicates that the Injector 1 Positive Voltage Control Circuit has a short to the control circuit, affecting the operation of the fuel injector.
What are the common symptoms of code P1248 in a 2016 GMC Sierra?
Symptoms may include engine misfire, rough idling, reduced power, poor fuel economy, or the Check Engine Light illuminating.
What causes the P1248 code to appear on a 2016 GMC Sierra?
Common causes include damaged wiring or connectors in the injector circuit, a faulty fuel injector, or a malfunctioning engine control module (ECM).
Can I drive my 2016 GMC Sierra with the P1248 code?
Driving with this code is not recommended as it can lead to poor engine performance, potential damage to other components, and increased emissions.
How do I diagnose a P1248 code on a 2016 GMC Sierra?
Start by inspecting the injector wiring and connectors for damage or corrosion, test the injector for proper resistance, and check for shorts or opens in the circuit.
What tools are needed to fix the P1248 code on a 2016 GMC Sierra?
A diagnostic scanner, multimeter, and wiring diagram are essential tools for diagnosing and repairing this issue.
How can I fix the P1248 code on my 2016 GMC Sierra?
Repairs may involve repairing or replacing damaged wiring, cleaning or replacing the injector connector, or replacing the faulty fuel injector.
Is a faulty ECM a common cause for the P1248 code?
While possible, a faulty ECM is less common. The issue is more likely related to wiring, connectors, or the injector itself.
How much does it cost to fix the P1248 code on a 2016 GMC Sierra?
Repair costs vary depending on the issue but can range from $150 to $500, including diagnostics and parts.
Can a P1248 code cause long-term damage to my 2016 GMC Sierra?
If left unresolved, it can lead to further engine performance issues, additional injector failures, or damage to catalytic converters.
Discuss the causes and fixes for P1248 2016 GMC Sierra OBDII Code
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