AutoCodes – Generic – P0323

P0323 Code - Ignition/Distributor Engine Speed Input Circuit Intermittent

Quick Answer

Ignition failure sensor is used to check whether the spark ignition is occurred correctly or not and also used to tachometer drive. Common causes include Ignition/Distributor engine speed sensor harness is open or shorted, Ignition/Distributor engine speed sensor circuit poor electrical connection, Faulty Ignition/Distributor engine speed sensor. 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: P0323 indicates Ignition/Distributor Engine Speed Input Circuit Intermittent.
Common causes: Common causes include Ignition/Distributor engine speed sensor harness is open or shorted, Ignition/Distributor engine speed sensor circuit poor electrical connection, Faulty Ignition/Distributor engine speed sensor.
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 15,010

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 Apr 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0323 Description

Ignition failure sensor is used to check whether the spark ignition is occurred correctly or not and also used to tachometer drive. The sensor monitors the voltage difference between a resistance which is on the battery circuit for 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 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 P0323 - Ignition/Distributor Engine Speed Input Circuit Intermittent - AutoCodes.com — P0323 Code - Ignition/Distributor Engine Speed Input Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0323?

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

How to Fix the DTC P0323?

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 P0323 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 P0323 code?

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Need Help with the Code?

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Information for Specific Makes

P0323 Mazda — Crankshaft Sensor Circuit Malfunction
P0323 Mercedes-Benz — Ignition/Distributor Engine Speed Input Circuit Intermittent

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.