What does code P1346 mean?

Q: What does code P1346 mean?

Ignition Coil Power Output State 3 Short To B+. P1346 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery positive voltage on the power output circuit for ignition coil state 3, which is the third coil driver channel in the ignition coil control sequence. The ECM monitors the coil power output state and sets this code when the commanded state does not match the actual voltage on that circuit, indicating the wire or coil is shorted to B+.

DTC codes / Volkswagen codes / P1346

P1346 · VolkswagenIgnition Coil Power Output State 3 Short To B+

P1346 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery positive voltage on the power output circuit for ignition coil state 3, which is the third coil driver channel in the ignition coil control sequence. The ECM monitors the coil power output state and sets this code when the commanded state does not match the actual voltage on that circuit, indicating the wire or coil is shorted to B+.

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.