Error code

OBD2 P0355

OBD2P0355
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Ignition Coil 'E' Primary/Secondary Circuit.

Severity

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

Summary

P0355 indicates an issue with the ignition coil 'E' 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
  • Problem with the PCM

Diagnosis

  1. Visually inspect the coil pack and its connector for any broken wires or corrosion.
  2. Swap the faulty ignition coil with another cylinder's coil to determine if the issue is with the coil itself or the control circuit.
  3. Test the resistance of the coil using a digital multimeter, checking both primary (0.4 to 2 ohms) and secondary circuits (6,000 to 15,000 ohms).
  4. Check for power supply to the ignition coil by measuring voltage at the B+ terminal.
  5. Test the PCM control circuit using an LED or noid light while cranking the engine.

Fixes

  • Replace faulty ignition coil or repair wiring issues in the ignition system.

FAQ

What does P0355 mean?

P0355 indicates a malfunction in the primary/secondary circuit of ignition coil 'E'.

How do I diagnose P0355?

Diagnose by visually inspecting, swapping coils, testing resistance with multimeter, checking power supply, and testing 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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