What does code P1355 mean?

Q: What does code P1355 mean?

Cylinder 1 Ignition Circuit Open. P1355 on a Volkswagen indicates that the engine control module (ECM) has detected an open circuit in the ignition coil circuit for cylinder 1, meaning the electrical path that fires the spark plug is broken or has excessive resistance. The ECM commands a spark but sees no current flow or feedback, so it flags the circuit as open and may disable that cylinder's ignition to protect the catalytic converter.

DTC codes / Volkswagen codes / P1355

P1355 · VolkswagenCylinder 1 Ignition Circuit Open

P1355 on a Volkswagen indicates that the engine control module (ECM) has detected an open circuit in the ignition coil circuit for cylinder 1, meaning the electrical path that fires the spark plug is broken or has excessive resistance. The ECM commands a spark but sees no current flow or feedback, so it flags the circuit as open and may disable that cylinder's ignition to protect the catalytic converter.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.