You are offline — AutoTools still works from your device.
AutoTools
Tools AI assistant OBD Codes Encyclopedia Guides Expert tips Blog Quiz FAQ
Code
P0351
Ignition

Ignition coil A primary/secondary circuit malfunction

The ignition coil primary circuit has an electrical fault.

Search another code
Advertisement

Most likely causes

  1. Faulty ignition coil
  2. Wiring fault
  3. Bad ECM driver

Symptoms you may notice

  • Misfire
  • Rough idle
  • Check engine light

Checks to run

  1. Swap the coil with another cylinder
  2. Test the primary circuit

Tools you may need

Multimeter OBD-II scanner
Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Ignition

P0352

Ignition coil B primary/secondary circuit malfunction

 P0353

Ignition coil C primary/secondary circuit malfunction
Advertisement
Install AutoToolsWorks offline, one tap away.
Ask the AI mechanic
Hi! Ask me anything about your car — codes, noises, parts, maintenance.
All tools