P1248 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P1248 2014 Chevrolet Silverado?
- 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 2014 Chevrolet Silverado?
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 2014 Chevrolet Silverado 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 2014 Chevrolet Silverado Code
1. What does the OBDII code P1248 mean on a 2014 Chevrolet Silverado?
P1248 indicates that there is a short circuit between the positive voltage control circuit and the control circuit for injector 1 in the engine.
2. What are the symptoms of code P1248 on a 2014 Chevrolet Silverado?
Common symptoms include rough idling, engine misfire, reduced power, poor fuel economy, and possible illumination of the check engine light.
3. What causes the P1248 code on a 2014 Chevrolet Silverado?
The code is often caused by damaged wiring, a short circuit in the injector harness, a faulty fuel injector, or a malfunctioning engine control module (ECM).
4. Can a bad fuel injector cause the P1248 code?
Yes, a malfunctioning or shorted fuel injector can trigger the P1248 code by disrupting the voltage control circuit.
5. How can I diagnose the P1248 code on my 2014 Chevrolet Silverado?
Start by inspecting the wiring and connectors for injector 1 for damage or corrosion. Use a multimeter to check for continuity and shorts in the circuit. If the wiring is intact, test the fuel injector itself.
6. Is it safe to drive with the P1248 code on my 2014 Chevrolet Silverado?
It’s not recommended to drive with this code as it can lead to engine performance issues, increased emissions, and potential damage to other components.
7. How do I fix the P1248 code on a 2014 Chevrolet Silverado?
Repairs may include repairing or replacing damaged wiring, cleaning or replacing the injector connection, replacing the faulty injector, or reprogramming or replacing the ECM if necessary.
8. How much does it cost to fix the P1248 code on a 2014 Chevrolet Silverado?
Repair costs vary depending on the issue, ranging from $50 to $150 for wiring repairs to $200–$500+ for injector or ECM replacement.
9. Can a weak battery cause the P1248 code?
While uncommon, a weak or failing battery can sometimes cause electrical issues that might contribute to this code. Ensure your battery and charging system are in good condition.
10. Do I need to reprogram the ECM after fixing the P1248 code?
Reprogramming the ECM is not always required, but if the ECM is replaced or updated, it may need to be reprogrammed to ensure proper operation.
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