AutoCodes – Lincoln – P2306 Lincoln

P2306 Lincoln Code - Ignition Coil 'C' Primary Control Circuit Low

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 'C', Ignition Coil 'C' harness is open or shorted, Ignition Coil 'C' 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: P2306 Lincoln indicates Ignition Coil 'C' Primary Control Circuit Low.
Common causes: Common causes include Faulty Ignition Coil 'C', Ignition Coil 'C' harness is open or shorted, Ignition Coil 'C' 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 1,261

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2306 Lincoln 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 P2306 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2306 Lincoln - Ignition Coil 'C' Primary Control Circuit Low - AutoCodes.com — P2306 Lincoln Code - Ignition Coil 'C' Primary Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2306 Lincoln?

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

How to Fix the DTC P2306 Lincoln?

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 P2306 Lincoln 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 P2306 Lincoln Code

What does the OBDII code P2306 mean for a Lincoln vehicle?

P2306 indicates that there is a low voltage condition in the primary control circuit of ignition coil 'C', which can lead to misfires or poor engine performance.

What are the common symptoms of the P2306 code?

Common symptoms include engine misfires, rough idling, decreased power, and potentially an illuminated check engine light.

What could cause the P2306 code to trigger?

Causes may include a faulty ignition coil, damaged wiring or connectors in the ignition circuit, or issues with the Engine Control Module (ECM).

How can I diagnose the P2306 code?

Start by inspecting the ignition coil and its wiring for damage or corrosion. Use a multimeter to test the resistance of the ignition coil and check for proper voltage at the connector.

What should I check first when troubleshooting P2306?

Begin by checking the ignition coil 'C' for signs of wear or failure, and inspect the wiring and connectors for any fraying or disconnections.

Can I drive my Lincoln with the P2306 code?

While it may be possible to drive the vehicle, it is not recommended as the engine may misfire, leading to increased emissions and potential damage over time.

What repairs are commonly needed for a P2306 code?

Common repairs include replacing the faulty ignition coil, repairing or replacing damaged wiring, and reprogramming or replacing the ECM if necessary.

How much does it typically cost to fix a P2306 code?

Repair costs can vary widely, ranging from $100 to $400 depending on whether you need to replace the ignition coil, repair wiring, or address ECM issues.

Will clearing the P2306 code fix the problem?

Clearing the code may temporarily remove the check engine light, but the underlying issue will still exist and the code will likely reappear if not properly addressed.

Is it safe to ignore the P2306 code?

Ignoring the P2306 code is not advisable, as it can lead to more significant engine problems, reduced fuel efficiency, and increased emissions over time.