Error code

OBD2 P0350

OBD2P0350
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Ignition Coil Primary/Secondary Circuit.

Severity

moderateCan drive, but may experience poor performance and increased emissions.

Summary

P0350 indicates an issue with the ignition coil primary/secondary circuit malfunction in the ignition system of your vehicle.

Symptoms

  • Illuminated check engine light
  • Ignition misfire

Common Causes

  • Faulty ignition coil
  • Problem in the ignition coil circuit
  • PCM problems (least likely)

Diagnosis

  1. Visually inspect the coil pack and its connector for damage or corrosion.
  2. Swap coils between cylinders to identify faulty components.
  3. Test the resistance of the primary and secondary circuits using a multimeter.
  4. Check if the coil is receiving power from the vehicle's electrical system.
  5. Verify continuity in the PCM control circuit.

Fixes

  • Replace the faulty ignition coil or repair damaged wiring.

FAQ

What does P0350 mean?

P0350 indicates a malfunction in the primary/secondary circuit of an ignition coil, which is part of your vehicle's ignition system.

How do I diagnose P0350?

Diagnose by visually inspecting the coil pack and its connector, swapping coils between cylinders, testing resistance with a multimeter, checking for power supply issues, and verifying continuity in the PCM control circuit.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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