AutoCodes – Generic – P2300

P2300 Code - Ignition Coil 'A' 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 'A', Ignition Coil 'A' harness is open or shorted, Ignition Coil 'A' 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: P2300 indicates Ignition Coil 'A' Primary Control Circuit Low.
Common causes: Common causes include Faulty Ignition Coil 'A', Ignition Coil 'A' harness is open or shorted, Ignition Coil 'A' 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 26,942

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
Comments
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Code P2300 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 P2300 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2300 - Ignition Coil 'A' Primary Control Circuit Low - AutoCodes.com — P2300 Code - Ignition Coil 'A' Primary Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2300?

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

How to Fix the DTC P2300?

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 P2300 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.

Need more information about the P2300 code?

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Need Help with the Code?

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Information for Specific Makes

P2300 Audi — Ignition Coil 1 Primary Control Circuit Low
P2300 Buick — Ignition Coil 1 Control Circuit Low Voltage
P2300 Cadillac — Ignition Coil 1 Control Circuit Low Voltage
P2300 Chevrolet — Ignition Coil 1 Control Circuit Low Voltage
P2300 Chrysler — Ignition Coil 'A' Primary Control Circuit Low
P2300 Dodge — Ignition Coil 'A' Primary Control Circuit Low
P2300 Ford — Ignition Coil 'A' Primary Control Circuit Low
P2300 GMC — Ignition Coil 1 Control Circuit Low Voltage
P2300 Jeep — Ignition Coil 'A' Primary Control Circuit Low
P2300 Lincoln — Ignition Coil 'A' Primary Control Circuit Low
P2300 Mercury — Ignition Coil 'A' Primary Control Circuit Low
P2300 Suzuki — Ignition Coil 1 Primary Control Circuit Low
P2300 Volkswagen — Ignition Coil 1 Primary Control Circuit Low
P2300 Volvo — Ignition Coil 'A' Primary Control Circuit Low

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.