P1248 2018 Chevrolet Silverado Code - Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P1248 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates that there is a problem with the Injector 1 Positive Voltage Control Circuit being shorted to the Control Circuit. Common causes include Faulty fuel injector, Wiring harness issues, Corrosion or poor connections in the circuit. 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 2018 Chevrolet Silverado indicates Injector 1 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty fuel injector, Wiring harness issues, Corrosion or poor connections in the circuit.
- 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 2018 Chevrolet Silverado Description
The P1248 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado indicates that there is a problem with the Injector 1 Positive Voltage Control Circuit being shorted to the Control Circuit. In simpler terms, this means that there is a malfunction in the wiring or components related to 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 to ensure proper engine performance.
Common Causes of P1248 2018 Chevrolet Silverado
- Faulty fuel injector
- Wiring harness issues
- Corrosion or poor connections in the circuit
- ECM (Engine Control Module) malfunction
- Short circuit in the wiring
Symptoms of P1248 2018 Chevrolet Silverado
- Rough idle or misfiring engine
- Decreased fuel efficiency
- Lack of power or acceleration
- Engine stalling
- Check Engine Light illuminated
How to Fix P1248 2018 Chevrolet Silverado
- Begin by diagnosing the exact cause of the issue using a scan tool to pinpoint the problem area.
- Inspect the wiring harness and connections related to Injector 1 for any signs of damage, corrosion, or poor connections.
- Test the fuel injector for proper function and replace if necessary.
- Check the ECM for any faults or errors and reprogram or replace as needed.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1248 2018 Chevrolet Silverado
The typical repair costs for addressing a P1248 code on a 2018 Chevrolet Silverado can vary depending on the exact cause of the issue. In general, the cost of parts such as a new fuel injector, wiring harness, or ECM can range from $200 to $800. Labor costs at an auto repair shop can range from $100 to $300 per hour, with the total repair time likely taking 1-2 hours. Therefore, the total cost of repairing a P1248 code could range from $300 to $1400, including parts and labor. It is advisable to check with local auto repair shops for more accurate estimates based on your specific location and vehicle.
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Frequently Asked Questions about P1248 2018 Chevrolet Silverado Code
1. What does the OBDII code P1248 mean on a 2018 Chevrolet Silverado?
P1248 indicates that the Injector 1 Positive Voltage Control Circuit is shorted to the control circuit, causing a disruption in the injector's operation.
2. What are the common symptoms of code P1248 in a 2018 Chevrolet Silverado?
Symptoms may include rough idling, misfires, reduced engine performance, poor fuel economy, and the Check Engine Light turning on.
3. What causes the P1248 code on a 2018 Chevrolet Silverado?
Common causes include damaged wiring, a short circuit between the injector's positive voltage and control circuits, a faulty fuel injector, or a malfunctioning engine control module (ECM).
4. Can I drive my 2018 Chevrolet Silverado with code P1248?
While it might be possible to drive, it is not recommended as the engine may misfire or run poorly, potentially causing further damage to components.
5. How do I diagnose the P1248 code on a 2018 Chevrolet Silverado?
Start by inspecting the injector wiring and connectors for damage or shorts. Use a multimeter to check for proper voltage and resistance. Scan the ECM for related codes and test the injector itself.
6. How do I fix the P1248 code on a 2018 Chevrolet Silverado?
Repairs may involve replacing damaged wiring, repairing short circuits, replacing the faulty fuel injector, or reprogramming/repairing the ECM if necessary.
7. How much does it cost to fix a P1248 code on a 2018 Chevrolet Silverado?
Costs vary, but replacing a fuel injector typically ranges from $150 to $400, while wiring repairs or ECM reprogramming can cost between $100 and $500 depending on the issue.
8. Could a clogged fuel injector cause code P1248?
No, a clogged injector would not cause this specific code, as P1248 relates to an electrical short in the circuit, not a mechanical blockage.
9. How can I prevent the P1248 code from occurring on my 2018 Chevrolet Silverado?
Regular maintenance, inspecting injector wiring for wear, and avoiding exposure to moisture or debris can help prevent electrical issues.
10. Do I need to clear the code after fixing the P1248 issue?
Yes, after making repairs, use an OBDII scanner to clear the code and confirm that it does not return during a test drive.
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