AutoCodes – Cadillac – P2307 Cadillac

P2307 Cadillac Code - Ignition Coil 3 Control Circuit High Voltage

Quick Answer

The ignition system on this engine uses ignition coils with integrated power transistors. Common causes include Faulty Ignition Coil 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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: P2307 Cadillac indicates Ignition Coil 3 Control Circuit High Voltage.
Common causes: Common causes include Faulty Ignition Coil 3, Ignition Coil 3 harness is open or shorted, Ignition Coil 3 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.

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Code Popularity 413

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 31, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2307 Cadillac Description

The ignition system on this engine uses ignition coils with integrated power transistors. The Engine Control Module (ECM) controls the spark event for each cylinder through individual ignition coil control circuits. When the ECM commands the ignition control circuit On, electrical current flows through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM commands the ignition control circuit Off, interrupting current flow through the primary winding. The collapsing magnetic field created by the primary winding induces a high voltage in the secondary winding, which is connected to the spark plugs. The Diagnostic Trouble Code (DTC) will be set when the control circuit commanded by the ECM state does not match the actual state.

OBDII Code P2307 Cadillac - Ignition Coil 3 Control Circuit High Voltage - AutoCodes.com — P2307 Cadillac Code - Ignition Coil 3 Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2307 Cadillac?

Faulty Ignition Coil 3
Ignition Coil 3 harness is open or shorted
Ignition Coil 3 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2307 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 P2307 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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Need Help with the Code?

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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.