P1249 Cadillac Code - Injector 2 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 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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
- P1249 Cadillac indicates Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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 P1249 Cadillac Description
What are the Possible Causes of the DTC P1249 Cadillac?
- Faulty Fuel Injector 2
- Fuel Injector 2 harness is open or shorted
- Fuel Injector 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1249 Cadillac?
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 P1249 Cadillac 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 P1249 Cadillac Code
1. What does code P1249 mean on a Cadillac?
Code P1249 indicates an issue where the Injector 2 Positive Voltage Control Circuit is shorted to the control circuit, potentially affecting the performance of the second fuel injector.
2. What are the symptoms of a P1249 code in a Cadillac?
Symptoms may include engine misfires, rough idling, reduced fuel efficiency, hesitation during acceleration, and an illuminated check engine light.
3. What causes the P1249 code to appear?
Common causes include damaged or shorted wiring in the Injector 2 circuit, a faulty fuel injector, a defective Engine Control Module (ECM), or poor electrical connections.
4. Can I drive my Cadillac with a P1249 code?
Driving with a P1249 code is not recommended, as it may cause further damage to the engine or catalytic converter due to improper fuel delivery.
5. How do I diagnose a P1249 code in my Cadillac?
Diagnosis involves checking the wiring and connectors for Injector 2, testing the fuel injector for proper operation, and using a multimeter to verify voltage and continuity in the circuit.
6. How do I fix a P1249 code on my Cadillac?
Repairs may include replacing damaged wiring, repairing bad connections, replacing the faulty fuel injector, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix a P1249 code?
Repair costs can vary widely, ranging from $150 to $500 or more, depending on whether the issue is wiring-related, involves replacing the injector, or requires ECM repair.
8. Can a P1249 code be caused by a bad fuel injector?
Yes, a faulty or shorted fuel injector can cause the P1249 code, as it disrupts the proper voltage flow in the circuit.
9. Will clearing the code fix the P1249 issue?
Clearing the code without addressing the root cause will not fix the problem, and the code is likely to reappear after driving.
10. What tools do I need to troubleshoot a P1249 code?
You'll need an OBDII scanner, a multimeter, and potentially a wiring diagram for your Cadillac to properly diagnose and repair the issue.
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