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P2319 Cadillac Code - Ignition Coil 7 Control Circuit High Voltage

Quick Answer

The P2319 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the ignition coil 7 control circuit experiencing high voltage. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Defective engine control module (ECM). 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
P2319 Cadillac indicates Ignition Coil 7 Control Circuit High Voltage.
Common causes
Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Defective engine control module (ECM).
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 P2319 Cadillac Description

The P2319 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the ignition coil 7 control circuit experiencing high voltage. This code indicates that there is a problem with the electrical circuit responsible for controlling the ignition coil in cylinder 7. The ignition coil is a crucial component in the ignition system of a vehicle, as it is responsible for converting the low voltage from the battery into the high voltage needed to create a spark in the spark plugs, which ignites the air-fuel mixture in the engine cylinders.

OBDII Code P2319 Cadillac - Ignition Coil 7 Control Circuit High Voltage
P2319 Cadillac Code - Ignition Coil 7 Control Circuit High Voltage

Common Causes of P2319 Cadillac

  1. Faulty ignition coil
  2. Damaged wiring or connectors in the ignition coil circuit
  3. Defective engine control module (ECM)
  4. Water or moisture intrusion in the ignition coil circuit
  5. Poor electrical connection in the ignition coil circuit

Symptoms of P2319 Cadillac

  1. Engine misfires or runs rough
  2. Lack of power or acceleration
  3. Difficulty starting the engine
  4. Illumination of the check engine light
  5. Increased fuel consumption

How to Fix P2319 Cadillac

  1. Begin by diagnosing the root cause of the high voltage in the ignition coil 7 control circuit using a diagnostic scanner to retrieve the fault codes and perform electrical tests.
  2. Inspect the ignition coil, wiring, and connectors for any visible damage or signs of wear. Replace any components that are faulty or damaged.
  3. Test the engine control module (ECM) to ensure it is functioning correctly. If necessary, reprogram or replace the ECM.
  4. Clear the fault codes from the vehicle's computer and test the vehicle to ensure the issue has been resolved.
  5. Perform a road test to verify that the engine is running smoothly and no further issues are present.

Cost to Fix P2319 Cadillac

The typical repair costs for addressing the P2319 code related to the ignition coil 7 control circuit high voltage can range from $150 to $500, depending on the specific cause of the issue and the labor rates at the auto repair shop. This estimate includes the cost of parts such as the ignition coil, wiring, connectors, or engine control module, as well as labor for diagnosis and repair. It's important to note that the cost can vary based on the location, vehicle make and model, and the technician's rates. It is recommended to obtain quotes from several auto repair shops to find the best price for the repair.

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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 P2319 Cadillac Code

1. What does the OBDII code P2319 mean on a Cadillac?

P2319 indicates an issue with the ignition coil 7 control circuit, specifically a high voltage condition detected by the engine control module (ECM).

2. What are the common symptoms of code P2319 in a Cadillac?

Typical symptoms include engine misfires, rough idling, decreased engine performance, poor fuel economy, and possibly an illuminated Check Engine Light.

3. What causes the P2319 code to appear on a Cadillac?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a malfunctioning ECM, or issues with the spark plug for cylinder 7.

4. Can I drive my Cadillac with a P2319 code?

Driving with a P2319 code is not recommended, as it can lead to engine misfires and potential damage to the catalytic converter.

5. How do I diagnose the P2319 code on my Cadillac?

Begin by inspecting the ignition coil 7 and its wiring for damage or corrosion. Use a multimeter to check the circuit for proper voltage and continuity. A scan tool can also help confirm the fault.

6. How do I fix a P2319 code on a Cadillac?

Repairs may involve replacing the ignition coil, repairing or replacing damaged wiring or connectors, replacing the spark plug for cylinder 7, or, in rare cases, reprogramming or replacing the ECM.

7. How much does it cost to fix the P2319 code on a Cadillac?

Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether the ignition coil or wiring needs replacement.

8. Can a bad spark plug cause the P2319 code on a Cadillac?

Yes, a faulty spark plug for cylinder 7 can cause ignition coil issues that trigger the P2319 code.

9. How do I prevent the P2319 code from recurring?

Regular maintenance, including replacing spark plugs and ignition coils as recommended, and inspecting wiring for damage, can help prevent the code from recurring.

10. Will clearing the P2319 code fix the problem?

Clearing the code will turn off the Check Engine Light temporarily, but it won’t resolve the underlying issue. Proper diagnosis and repair are necessary to fix the problem.

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