AutoCodes – Suzuki – P2303 Suzuki

P2303 Suzuki Code - Ignition Coil 2 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 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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
P2303 Suzuki indicates Ignition Coil 2 Primary Control Circuit Low.
Common causes
Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 5,725
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P2303 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 P2303 code sets when the PCM detects a short to voltage in the circuit.
OBDII Code P2303 Suzuki - Ignition Coil 2 Primary Control Circuit Low - AutoCodes.com
P2303 Suzuki Code - Ignition Coil 2 Primary Control Circuit Low

What are the Possible Causes of the DTC P2303 Suzuki?

  • Faulty Ignition Coil 2
  • Ignition Coil 2 harness is open or shorted
  • Ignition Coil 2 circuit poor electrical connection

How to Fix the DTC P2303 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 P2303 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 P2303 Suzuki code?

Need more information on how to fix the P2303 Suzuki code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2303 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 P2303 Suzuki Code

1. What are common symptoms of OBDII code P2303 Suzuki (Ignition Coil 2 Primary Control Circuit Low)?

- Common symptoms include engine misfires, rough idling, loss of power, and illuminated Check Engine Light.

2. What causes the OBDII code P2303 Suzuki to trigger?

- The code is typically triggered by a malfunction in the ignition coil 2 primary control circuit, which may be caused by wiring issues, a faulty ignition coil, or a problem with the engine control module.

3. How can I diagnose the root cause of OBDII code P2303 Suzuki?

- To diagnose the issue, you can perform a visual inspection of the ignition coil and its wiring, test the ignition coil using a multimeter, and check for any loose connections or damaged wires in the circuit.

4. What are the potential risks of ignoring the OBDII code P2303 Suzuki?

- Ignoring the code may lead to further damage to the ignition system, decreased fuel efficiency, and potential engine stalling or failure, so it's important to address the issue promptly.

5. Can I drive my vehicle with the OBDII code P2303 Suzuki active?

- It is not recommended to drive the vehicle with the code active, as it can cause drivability issues and potentially lead to more severe engine problems.

6. How can I repair OBDII code P2303 Suzuki (Ignition Coil 2 Primary Control Circuit Low)?

- Repair options include replacing the faulty ignition coil, repairing or replacing damaged wiring, or reprogramming the engine control module if necessary.

7. Is it possible to reset the Check Engine Light after fixing the issue related to OBDII code P2303 Suzuki?

- Yes, the Check Engine Light can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the code.

8. Can a DIY enthusiast fix the OBDII code P2303 Suzuki issue at home?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the issue themselves, but it's recommended to seek professional help if unsure.

9. How much does it typically cost to repair OBDII code P2303 Suzuki at a repair shop?

- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

10. Are there any preventative maintenance tips to avoid OBDII code P2303 Suzuki in the future?

- Regularly inspecting and maintaining the ignition system, including checking the condition of ignition coils and wiring, can help prevent issues that may trigger this code.

Discuss the causes and fixes for P2303 Suzuki OBDII Code

Code P2303 Suzuki comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play