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P2307 Cadillac Code - Ignition Coil 3 Control Circuit High Voltage

Quick Answer

The P2307 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the ignition coil 3 control circuit having high voltage. Common causes include Faulty ignition coil, Damaged coil connector, Wiring harness issues. 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
P2307 Cadillac indicates Ignition Coil 3 Control Circuit High Voltage.
Common causes
Common causes include Faulty ignition coil, Damaged coil connector, Wiring harness issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2307 Cadillac Description

The P2307 diagnostic trouble code (DTC) for Cadillac vehicles indicates a problem with the ignition coil 3 control circuit having high voltage. The ignition coil is a crucial component of the ignition system, responsible for converting low voltage from the battery into the high voltage needed to create a spark in the spark plugs. When the control circuit for ignition coil 3 detects high voltage, it means that there is an issue with the coil's operation, which can lead to misfires, rough idling, and overall poor engine performance.

OBDII Code P2307 Cadillac - Ignition Coil 3 Control Circuit High Voltage
P2307 Cadillac Code - Ignition Coil 3 Control Circuit High Voltage

Common Causes of P2307 Cadillac

  1. Faulty ignition coil
  2. Damaged coil connector
  3. Wiring harness issues
  4. Engine control module (ECM) malfunction
  5. Other related ignition system components failure

Symptoms of P2307 Cadillac

  1. Engine misfires
  2. Rough idling
  3. Loss of power
  4. Poor fuel efficiency
  5. Electrical interference (e.g., radio interference, flickering lights)

How to Fix P2307 Cadillac

  1. Begin by diagnosing the specific cause of the high voltage in ignition coil 3 using a scan tool to determine the exact issue.
  2. Inspect the ignition coil and its wiring for any visible damage or loose connections. Replace or repair any damaged components.
  3. Test the coil connector for proper connectivity and replace if necessary.
  4. Check the ECM for any faults or malfunctions and repair or replace as needed.
  5. Clear the DTC code from the vehicle's computer memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2307 Cadillac

The cost of repairing a P2307 Cadillac code can vary depending on the specific cause of the issue. In general, the cost of replacing an ignition coil can range from $50 to $200, depending on the make and model of the vehicle. Labor costs can add an additional $50 to $100 per hour, with the total repair time typically taking around 1-2 hours. However, prices for parts and labor can vary significantly based on location, vehicle make and model, and the mechanic's rates, so it's recommended to obtain a specific estimate from a trusted auto repair shop.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2307 Cadillac Code

1. What are the common symptoms of OBDII code P2307 in a Cadillac related to Ignition Coil 3 Control Circuit High Voltage?

- Common symptoms include engine misfires, rough idle, loss of power, and illuminated Check Engine light.

2. What are the possible causes of OBDII code P2307 in a Cadillac indicating Ignition Coil 3 Control Circuit High Voltage?

- Possible causes include a faulty ignition coil, wiring issues, poor electrical connections, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the source of OBDII code P2307 in a Cadillac specifically related to Ignition Coil 3 Control Circuit High Voltage?

- Diagnose by inspecting the wiring and connections to the ignition coil, testing the coil's resistance, checking for voltage at the coil, and using a scan tool to monitor data.

4. Can a DIY enthusiast repair OBDII code P2307 in a Cadillac associated with Ignition Coil 3 Control Circuit High Voltage?

- Yes, some DIY repairs may be possible, such as replacing the faulty ignition coil or repairing damaged wiring, but more complex issues may require professional assistance.

5. What are some tips for repairing OBDII code P2307 in a Cadillac related to Ignition Coil 3 Control Circuit High Voltage?

- Tips include ensuring proper wire connections, using quality replacement parts, clearing the code after repairs, and conducting a thorough inspection of related components.

6. Is it safe to continue driving a Cadillac with OBDII code P2307 indicating Ignition Coil 3 Control Circuit High Voltage?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage, decreased performance, and potential safety hazards.

7. How can I prevent OBDII code P2307 from appearing in my Cadillac due to Ignition Coil 3 Control Circuit High Voltage?

- Regular maintenance, timely replacement of ignition components, and addressing any electrical issues promptly can help prevent this code from recurring.

8. Are there any recalls or technical service bulletins related to OBDII code P2307 in Cadillac vehicles for Ignition Coil 3 Control Circuit High Voltage?

- It's recommended to check with a Cadillac dealership or online resources for any relevant recalls or technical bulletins addressing this specific issue.

9. Can weather conditions or extreme temperatures contribute to triggering OBDII code P2307 in a Cadillac linked to Ignition Coil 3 Control Circuit High Voltage?

- Yes, extreme temperatures or moisture can affect electrical components and wiring, potentially leading to issues like high voltage in the ignition coil circuit.

10. Should I reset the ECU after repairing OBDII code P2307 in a Cadillac associated with Ignition Coil 3 Control Circuit High Voltage?

- Yes, resetting the Engine Control Unit (ECU) after repairs can clear the code and allow the system to relearn new parameters for optimal performance.

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