AutoCodes – Generic – P0359

P0359 Code - Ignition Coil 9 Primary/Secondary Circuit Malfunction

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 9, Ignition Coil 9 harness is open or shorted, Ignition Coil 9 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: P0359 indicates Ignition Coil 9 Primary/Secondary Circuit Malfunction.
Common causes: Common causes include Faulty Ignition Coil 9, Ignition Coil 9 harness is open or shorted, Ignition Coil 9 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 12,511

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 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
Comments
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Code P0359 Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0359 - Ignition Coil 9 Primary/Secondary Circuit Malfunction - AutoCodes.com — P0359 Code - Ignition Coil 9 Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0359?

Faulty Ignition Coil 9
Ignition Coil 9 harness is open or shorted
Ignition Coil 9 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0359?

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 P0359 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 P0359 code?

Need more information on how to fix the P0359 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0359 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0359 Audi — Ignition Coil 9 Primary/Secondary Circuit
P0359 Ford — Ignition Coil 'I' Primary/Secondary Circuit
P0359 Mercedes-Benz — Ignition Coil 9 Primary/Secondary Circuit Malfunction
P0359 Volkswagen — Ignition Coil 9 Primary/Secondary Circuit

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.