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AutoCodes - Generic - P0350

P0350 Code - Ignition Coil Primary/Secondary Circuit Malfunction

- Code Popularity: 97,962 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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By - Updated Jun 14, 2020
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|Code P0350 Possible Causes

  • Faulty Ignition Coil Primary/Secondary
  • Ignition Coil Primary/Secondary harness is open or shorted
  • Ignition Coil Primary/Secondary circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

|How do I Fix the Code P0350?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P0350?

Labor: 1.0

The cost of diagnosing the P0350 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|When is the Code P0350 Detected?

The test fails when the Engine Control Module (ECM) does not receive a valid pulse signal from the ignition coil.

|What are Code P0350 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/Loss of Power
  • Engine may be harder to start
  • Engine hesitation
  • Rough engine idle

|Code P0350 Description

The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

OBDII Code P0350 - Ignition Coil Primary/Secondary Circuit Malfunction -
P0350 Code - Ignition Coil Primary/Secondary Circuit Malfunction

|Need More Information on the P0350 Code?

Need more information on how to fix the P0350 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the P0350 Code?

Get the P0350 code diagnosed by a professional: Find a repair shop in your area

|Code P0350 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P0350 code? Have you replaced any parts?
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