AutoCodes – Suzuki – P2305 Suzuki

P2305 Suzuki Code - Ignition Coil 2 Secundary Circuit

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: P2305 Suzuki indicates Ignition Coil 2 Secundary Circuit.
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.

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Code Popularity 3,127

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 P2305 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 P2305 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2305 Suzuki - Ignition Coil 2 Secundary Circuit - AutoCodes.com — P2305 Suzuki Code - Ignition Coil 2 Secundary Circuit

What does this mean?

What are the Possible Causes of the DTC P2305 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 P2305 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 P2305 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.

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Need more information on how to fix the P2305 Suzuki code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2305 Suzuki Code

1. What are the common symptoms of OBDII code P2305 on a Suzuki related to the Ignition Coil 2 Secondary Circuit?

- Common symptoms may include engine misfires, rough idling, lack of power, and illuminated check engine light.

2. What can cause the OBDII code P2305 on a Suzuki related to the Ignition Coil 2 Secondary Circuit?

- Possible causes can include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the issue causing OBDII code P2305 on my Suzuki?

- Diagnosing the issue may involve visually inspecting the ignition coil and its connections, testing the coil for proper resistance, and using a scan tool to analyze live data from the ECM.

4. Is it safe to continue driving with OBDII code P2305 on a Suzuki?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the ignition system and potentially cause more severe engine issues.

5. How can I repair OBDII code P2305 related to the Ignition Coil 2 Secondary Circuit on my Suzuki?

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

6. Can a DIY enthusiast fix the issue causing OBDII code P2305 on a Suzuki?

- Depending on the level of experience and access to tools, a DIY enthusiast may be able to address this issue by following a detailed repair manual or seeking guidance from automotive forums.

7. Are there any preventive measures to avoid OBDII code P2305 on a Suzuki related to the Ignition Coil 2 Secondary Circuit?

- Regular maintenance, such as inspecting ignition components during scheduled services, can help prevent issues that may trigger this fault code.

8. Will resetting the check engine light make OBDII code P2305 on a Suzuki disappear?

- Resetting the check engine light will clear the code temporarily, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle.

9. Can extreme weather conditions affect the occurrence of OBDII code P2305 on a Suzuki?

- Yes, extreme temperatures or moisture can sometimes exacerbate issues in the ignition system, leading to the activation of this fault code.

10. Is it necessary to visit a dealership for repairs related to OBDII code P2305 on a Suzuki?

- While a dealership may have specialized knowledge and tools, a trusted mechanic or automotive service center with experience in Suzuki vehicles can also effectively diagnose and repair this issue.