P1249 Code - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P1249 code indicates that there is a short circuit between the positive voltage control circuit and the control circuit of injector 2 in the vehicle's fuel injection system. Common causes include Damaged wiring or connectors in the injector circuit, Faulty injector, ECM malfunction. 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
- P1249 indicates Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the injector circuit, Faulty injector, ECM malfunction.
- 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 P1249 Description
The P1249 code indicates that there is a short circuit between the positive voltage control circuit and the control circuit of injector 2 in the vehicle's fuel injection system. This fault can disrupt the proper functioning of the injector, leading to issues with fuel delivery and combustion within the engine. The injector is responsible for delivering the precise amount of fuel into the combustion chamber at the correct time, based on signals from the engine control module (ECM). When the positive voltage control circuit is shorted to the control circuit, it can cause the injector to malfunction, affecting the engine's performance and efficiency.
Common Causes of P1249
- Damaged wiring or connectors in the injector circuit
- Faulty injector
- ECM malfunction
- Corrosion or moisture in the electrical connections
- Short circuit due to overheating or electrical issues
Symptoms of P1249
- Engine misfires or rough idling
- Decreased fuel efficiency
- Engine stalling or hesitation
- Check Engine Light illuminated
- Reduced engine power
How to Fix P1249
- Begin by conducting a thorough visual inspection of the injector wiring and connectors to check for any signs of damage, corrosion, or loose connections.
- Use a multimeter to test the continuity and resistance of the positive voltage control circuit and the control circuit of injector 2 to identify any short circuits.
- If a short circuit is detected, repair or replace the damaged wiring or connectors as necessary.
- Test the injector itself to ensure it is functioning correctly, and replace it if found to be faulty.
- Clear the trouble codes from the ECM and perform a test drive to confirm that the issue has been resolved.
Cost to Fix P1249
The typical repair costs for addressing a P1249 code can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for repairing the injector circuit short can range from $100 to $300, while the labor cost can range from $150 to $300. Overall, the total repair cost for this issue could be in the range of $250 to $600. However, it is essential to consult with a qualified mechanic or auto repair shop for a more accurate estimate, as prices can vary based on factors such as location, vehicle make and model, and the extent of the repairs needed.
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Code P1249 Information for Specific Makes
- P1249 Audi — Fuel Consumption Signal Electrical Fault In Circuit
- P1249 Buick — Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
- P1249 Cadillac — Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
- P1249 Chevrolet — Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
- P1249 Ford — Wastegate Fail Steady State Test
- P1249 GMC — Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
- P1249 Isuzu — Low Fuel Pressure Sensor Circuit High Voltage
- P1249 Volkswagen — Fuel Consumption Signal Electrical Fault In Circuit
Frequently Asked Questions about P1249 Code
1. What are common symptoms of OBDII code P1249?
- Common symptoms include engine misfires, rough idling, poor acceleration, and possibly black smoke coming from the exhaust.
2. What does OBDII code P1249 mean?
- OBDII code P1249 indicates that there is a short circuit between the positive voltage control circuit and the control circuit of injector 2 in the vehicle's engine.
3. What are possible causes of OBDII code P1249?
- Possible causes include a damaged injector, a short circuit in the wiring harness, a faulty PCM (powertrain control module), or a poor electrical connection.
4. How serious is OBDII code P1249?
- OBDII code P1249 should be addressed promptly as it can lead to engine performance issues and potentially cause further damage if left unresolved.
5. How can I diagnose OBDII code P1249?
- Diagnosing OBDII code P1249 involves using a diagnostic scanner to read the code, inspecting the wiring harness for any visible damage, and testing the injector and related components for proper functionality.
6. Can I still drive my vehicle with OBDII code P1249?
- It is not recommended to drive the vehicle with OBDII code P1249 present, as it can lead to poor engine performance and potentially cause further damage over time.
7. How can I repair OBDII code P1249?
- Repairing OBDII code P1249 may involve replacing the faulty injector, repairing any damaged wiring, ensuring proper electrical connections, or replacing the PCM if necessary.
8. Is it possible to prevent OBDII code P1249 from occurring?
- While some causes of OBDII code P1249 may be unavoidable, regular maintenance and inspections of the vehicle's fuel system and electrical components can help prevent this issue.
9. Can OBDII code P1249 be triggered intermittently?
- Yes, OBDII code P1249 can be triggered intermittently if the short circuit between the positive voltage control circuit and the control circuit of injector 2 is intermittent.
10. How much does it typically cost to repair OBDII code P1249?
- The cost of repairing OBDII code P1249 can vary depending on the specific cause of the issue, but it may range from $200 to $500 or more, including parts and labor.
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