AutoCodes – Chrysler – P2312 Chrysler

P2312 Chrysler Code - Ignition Coil 'E' 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 'E', Ignition Coil 'E' harness is open or shorted, Ignition Coil 'E' 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: P2312 Chrysler indicates Ignition Coil 'E' Primary Control Circuit Low.
Common causes: Common causes include Faulty Ignition Coil 'E', Ignition Coil 'E' harness is open or shorted, Ignition Coil 'E' 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 1,776

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 P2312 Chrysler 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 P2312 code sets when the PCM detects a short to voltage in the circuit.

OBDII Code P2312 Chrysler - Ignition Coil 'E' Primary Control Circuit Low - AutoCodes.com — P2312 Chrysler Code - Ignition Coil 'E' Primary Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2312 Chrysler?

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

How to Fix the DTC P2312 Chrysler?

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 P2312 Chrysler 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 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 P2312 Chrysler Code

1. What are the common symptoms of OBDII code P2312 Chrysler?

- Common symptoms include engine misfires, rough idling, poor acceleration, and in some cases, the Check Engine light may illuminate.

2. What causes the OBDII code P2312 Chrysler to trigger?

- The code is typically triggered when the Engine Control Module (ECM) detects a low voltage condition in the primary control circuit of ignition coil 'E'.

3. How serious is the OBDII code P2312 Chrysler?

- While the code may not cause immediate engine failure, it can lead to poor engine performance and potential damage if left unresolved.

4. How can I diagnose the issue causing OBDII code P2312 Chrysler?

- Diagnosing the issue requires using a scan tool to retrieve the code, performing a visual inspection of wiring/connectors, and testing the ignition coil and related components.

5. What are some repair tips for resolving OBDII code P2312 Chrysler?

- Repair tips may include checking and repairing damaged wiring, replacing the ignition coil 'E', ensuring proper ground connections, and clearing the code with a scan tool.

6. Can a DIY enthusiast fix OBDII code P2312 Chrysler?

- DIY enthusiasts with automotive repair experience may be able to fix the issue by following repair manuals or online guides, but professional diagnosis and repair are recommended for complex cases.

7. How much does it cost to repair OBDII code P2312 Chrysler at a mechanic?

- Repair costs can vary depending on the exact cause of the issue, but they may range from $100 to $300 on average, including parts and labor.

8. Can driving with OBDII code P2312 Chrysler cause further damage to the vehicle?

- Continuing to drive with the code may lead to reduced fuel efficiency, increased emissions, and potential damage to the catalytic converter or other engine components over time.

9. Will resetting the Check Engine light resolve OBDII code P2312 Chrysler?

- Resetting the Check Engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after driving cycles.

10. How can I prevent OBDII code P2312 Chrysler from recurring in the future?

- To prevent the code from recurring, it is important to address any underlying issues promptly, perform regular maintenance on ignition system components, and avoid driving with engine performance problems.