AutoCodes – Mercury – P2322 Mercury

P2322 Mercury Code - Ignition Coil 'H' Primary Control Circuit High

Quick Answer

The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. Common causes include Faulty Ignition Coil 'H', Ignition Coil 'H' harness is open or shorted, Ignition Coil 'H' 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: P2322 Mercury indicates Ignition Coil 'H' Primary Control Circuit High.
Common causes: Common causes include Faulty Ignition Coil 'H', Ignition Coil 'H' harness is open or shorted, Ignition Coil 'H' 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 1,099

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2322 Mercury Description

The current flow, or dwell, through the primary ignition coil is controlled by the Powertrain Control Module (PCM) by providing a switched ground path through the ignition coil driver to ground. When the ignition coil driver is switched on, current rapidly builds up to a maximum value, determined by the coil inductance and resistance. When the current is switched off, the magnetic field collapses which induces a secondary high voltage surge and the spark plug is fired. This high voltage surge creates a flyback voltage which the PCM uses as a feedback during the ignition diagnostics. The PCM continuously monitors the ignition system for concerns. The P2322 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2322 Mercury - Ignition Coil 'H' Primary Control Circuit High - AutoCodes.com — P2322 Mercury Code - Ignition Coil 'H' Primary Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P2322 Mercury?

Faulty Ignition Coil 'H'
Ignition Coil 'H' harness is open or shorted
Ignition Coil 'H' circuit poor electrical connection

How to Fix the DTC P2322 Mercury?

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 P2322 Mercury 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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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 P2322 Mercury Code

1. What does the OBDII code P2322 mean for a Mercury vehicle?

P2322 indicates that the Ignition Coil 'H' Primary Control Circuit has a high voltage condition, meaning the circuit is experiencing electrical issues.

2. What are the common symptoms of P2322 in a Mercury?

Symptoms include engine misfires, poor acceleration, rough idle, reduced fuel efficiency, and the check engine light being illuminated.

3. What causes the P2322 code in a Mercury?

The most common causes are a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, a failed PCM (Powertrain Control Module), or a short circuit.

4. Can I drive my Mercury with the P2322 code?

Driving with this code is not recommended as it can cause further engine damage, poor performance, and increased emissions.

5. How do I diagnose the P2322 code in my Mercury?

Diagnosis involves inspecting the ignition coil, checking the wiring and connectors for damage, testing the circuit voltage, and verifying the PCM's functionality.

6. How do I fix the P2322 code on a Mercury?

Repairs may include replacing the faulty ignition coil, repairing or replacing damaged wiring, cleaning connections, or reprogramming/replacing the PCM if necessary.

7. Can a bad ignition coil cause P2322?

Yes, a faulty or failing ignition coil is one of the most common reasons for triggering the P2322 code.

8. What tools are needed to diagnose the P2322 code?

Youâ€™ll need an OBDII scanner, a digital multimeter, and possibly wiring diagrams for your Mercury model for thorough troubleshooting.

9. How much does it cost to fix the P2322 code in a Mercury?

The cost depends on the issue but typically ranges from $100-$300 for ignition coil replacement or wiring repairs, while PCM replacement costs can exceed $500.

10. Can a dirty or corroded connector cause the P2322 code?

Yes, corrosion or dirt in the ignition coil circuit connectors can disrupt electrical flow and trigger the P2322 code. Cleaning or replacing the connectors may resolve the issue.