AutoCodes – Suzuki – P2301 Suzuki

P2301 Suzuki Code - Ignition Coil 1 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 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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: P2301 Suzuki indicates Ignition Coil 1 Primary Control Circuit High.
Common causes: Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 3,010

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 P2301 Suzuki 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 P2301 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2301 Suzuki - Ignition Coil 1 Primary Control Circuit High - AutoCodes.com — P2301 Suzuki Code - Ignition Coil 1 Primary Control Circuit High

What does this mean?

What are the Possible Causes of the DTC P2301 Suzuki?

Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection

How to Fix the DTC P2301 Suzuki?

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 P2301 Suzuki 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 P2301 Suzuki code?

Need more information on how to fix the P2301 Suzuki code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2301 Suzuki code diagnosed by a professional: Find a repair shop in your area

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 P2301 Suzuki Code

1. What are the common symptoms of OBDII code P2301 (Suzuki) - Ignition Coil 1 Primary Control Circuit High?

Symptoms may include engine misfires, rough idling, loss of power, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P2301 (Suzuki)?

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

3. How can I diagnose the cause of OBDII code P2301 (Suzuki)?

You can use a diagnostic scanner to read the code and perform tests on the ignition coil, wiring, and connectors to identify the source of the issue.

4. Can a bad spark plug cause OBDII code P2301 (Suzuki)?

While a bad spark plug can contribute to ignition issues, the specific code P2301 is more likely related to the ignition coil or its control circuit.

5. What is the repair process for OBDII code P2301 (Suzuki)?

The repair may involve replacing the faulty ignition coil, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

6. Can I continue driving with OBDII code P2301 (Suzuki) present?

It is not recommended to drive with this code active, as it can lead to further engine damage and decreased performance.

7. How much does it cost to repair OBDII code P2301 (Suzuki)?

The cost of repair can vary depending on the specific issue and the labor rates of the repair shop, but it may range from $100 to $300 or more.

8. Is OBDII code P2301 (Suzuki) a common issue in Suzuki vehicles?

While not extremely common, ignition coil-related issues leading to this code can occur in Suzuki vehicles, especially as they age.

9. Can I reset OBDII code P2301 (Suzuki) with a simple disconnecting of the battery?

While disconnecting the battery may clear the code temporarily, it is advisable to diagnose and repair the underlying issue to prevent it from reoccurring.

10. How can I prevent OBDII code P2301 (Suzuki) from happening again in the future?

Regular maintenance of the ignition system, including checking and replacing spark plugs and ignition coils as needed, can help prevent recurrence of this code.