AutoCodes – Dodge – P2301 Dodge

P2301 Dodge Code - Ignition Coil 'A' 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 '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
P2301 Dodge indicates Ignition Coil 'A' Primary Control Circuit High.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 6,590
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2301 Dodge 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 Dodge - Ignition Coil 'A' Primary Control Circuit High - AutoCodes.com
P2301 Dodge Code - Ignition Coil 'A' Primary Control Circuit High

What are the Possible Causes of the DTC P2301 Dodge?

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

How to Fix the DTC P2301 Dodge?

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 Dodge 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 P2301 Dodge Code

1. What does the OBDII code P2301 mean for a Dodge vehicle?

P2301 indicates an issue with the Ignition Coil 'A' Primary Control Circuit, specifically that the circuit is detecting a higher-than-normal voltage.

2. What are the common symptoms of code P2301 in a Dodge?

Symptoms may include engine misfires, rough idling, reduced power, poor fuel economy, and an illuminated Check Engine Light.

3. What causes the P2301 code in a Dodge?

Common causes include a faulty ignition coil, damaged wiring or connectors in the ignition circuit, a defective PCM (Powertrain Control Module), or corrosion in the electrical connections.

4. Can a faulty ignition coil trigger the P2301 code?

Yes, a faulty ignition coil is one of the most common causes of the P2301 code.

5. How do you diagnose the P2301 code on a Dodge vehicle?

Diagnosis involves checking for damaged wiring or connectors, testing the ignition coil, using a multimeter to measure circuit voltage, and possibly testing the PCM if no other issues are found.

6. Can you drive with a P2301 code on a Dodge?

Driving with a P2301 code is not recommended, as it can lead to engine misfires, reduced performance, and potential damage to the catalytic converter.

7. How do you fix the P2301 code in a Dodge?

Repairs may include replacing the ignition coil, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming/replacing the PCM.

8. How much does it cost to fix a P2301 code on a Dodge?

The repair cost depends on the root cause but typically ranges from $100 to $400, with ignition coil replacement being the most common fix.

9. Can a bad PCM cause the P2301 code?

Yes, a defective PCM can cause the P2301 code, but it is usually the last component to check after ruling out ignition coil and wiring issues.

10. Is the P2301 code specific to Dodge vehicles?

No, P2301 is a generic OBDII code that can appear on any vehicle, but the diagnostic and repair process may vary depending on the make and model.

Discuss the causes and fixes for P2301 Dodge OBDII Code

  • 2nd time you accelerate from a stop #1 cyl misses switched coil and injector and still #1 misses shut car off restart runs fine until you accelerate from 2nd stop starts to miss compression 1s 140 to 152 across the engine fuel pressure 158lbs any help

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