AutoCodes – Generic – P0320

P0320 Code - Ignition/Distributor Engine Speed Input Circuit

Quick Answer

The Ignition Failure Sensor is used to check whether the spark ignition is occurred correctly or not, and it is also used to tachometer drive. Common causes include Faulty Ignition/Distributor Engine Speed Sensor, Faulty Crankshaft Position sensor, Ignition/Distributor Engine Speed Sensor harness is open or shorted. 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: P0320 indicates Ignition/Distributor Engine Speed Input Circuit.
Common causes: Common causes include Faulty Ignition/Distributor Engine Speed Sensor, Faulty Crankshaft Position sensor, Ignition/Distributor Engine Speed Sensor harness is open or shorted.
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 68,539

How popular is this code, among other codes? Medium

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 Apr 15, 2021

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0320 Description

The Ignition Failure Sensor is used to check whether the spark ignition is occurred correctly or not, and it is also used to tachometer drive. The sensor monitors the voltage difference between a resistance on the battery circuit for the ignition coil. When the ignition coil works properly, the electric current through the resistance is detected as voltage drop. This is confirmed for every ignition event with the crankshaft sensor and the camshaft sensor. If Engine Control Module (ECM) detects a malfunction, no ignition is possible, so the engine would not start. If there is no ignition signal for a predetermined cycle for one or two ignition coils, an ignition coil circuit failure exists.

OBDII Code P0320 - Ignition/Distributor Engine Speed Input Circuit - AutoCodes.com — P0320 Code - Ignition/Distributor Engine Speed Input Circuit

What does this mean?

What are the Possible Causes of the DTC P0320?

Faulty Ignition/Distributor Engine Speed Sensor
Faulty Crankshaft Position sensor
Ignition/Distributor Engine Speed Sensor harness is open or shorted
Ignition/Distributor Engine Speed Sensor circuit poor electrical connection
Low battery charge
Faulty Engine Control Module (ECM)

How to Fix the DTC P0320?

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 P0320 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 P0320 code?

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Get the P0320 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0320 Chrysler — No Crank Reference Signal At PCM
P0320 Dodge — No Crank Reference Signal At PCM
P0320 Ford — Ignition/Distributor Engine Speed Input Circuit Malfunction
P0320 Hyundai — Ignition/Distributor Engine Speed Input Circuit
P0320 Jeep — No Crank Reference Signal At PCM
P0320 KIA — Ignition/Distributor Engine Speed Input Circuit
P0320 Lincoln — Ignition/Distributor Engine Speed Input Circuit Malfunction
P0320 Mazda — Crankshaft Position Sensor Malfunction
P0320 Mercedes-Benz — Ignition/Distributor Engine Speed Input Circuit
P0320 Mercury — Ignition/Distributor Engine Speed Input Circuit Malfunction

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 P0320 Code

1. What are common symptoms of OBDII code P0320?

- Common symptoms include engine misfires, rough idle, stalling, and difficulties starting the vehicle.

2. What does OBDII code P0320 indicate?

- OBDII code P0320 indicates a problem with the Ignition/Distributor Engine Speed Input Circuit.

3. What are possible causes of OBDII code P0320?

- Possible causes include a faulty crankshaft position sensor, damaged wiring or connectors, or issues with the engine control module.

4. How can I diagnose the cause of OBDII code P0320?

- To diagnose the cause, it is recommended to use a scan tool to check for related trouble codes, test the crankshaft position sensor, and inspect the wiring for any damage.

5. Can a faulty crankshaft position sensor cause OBDII code P0320?

- Yes, a faulty crankshaft position sensor is a common cause of OBDII code P0320 as it affects the engine speed input signal.

6. How can I repair OBDII code P0320?

- Repairing OBDII code P0320 may involve replacing the crankshaft position sensor, repairing or replacing damaged wiring, or addressing any issues with the engine control module.

7. Are there any tips for preventing OBDII code P0320 from recurring?

- Regular maintenance of the ignition system, including replacing spark plugs and ignition coils as needed, can help prevent OBDII code P0320 from recurring.

8. Can driving with OBDII code P0320 cause further damage to the vehicle?

- Continuing to drive with OBDII code P0320 can potentially lead to engine performance issues and further damage if not addressed promptly.

9. How important is it to address OBDII code P0320 immediately?

- It is important to address OBDII code P0320 promptly to prevent potential engine damage and ensure the vehicle operates safely and efficiently.

10. Is it possible to reset OBDII code P0320 without fixing the underlying issue?

- While it is possible to clear the code temporarily, it is crucial to diagnose and repair the underlying issue causing OBDII code P0320 to prevent it from recurring.