What does code P1555 mean?

Q: What does code P1555 mean?

Electronic Variable Orifice Output. P1555 on Chrysler vehicles indicates that the powertrain control module has detected an electrical fault in the output circuit for the electronic variable orifice (EVO) solenoid, which controls power steering assist. The computer monitors the solenoid's command wire for expected voltage or current and sets this code when the signal falls outside the valid range, often due to an open, short, or excessive resistance in the circuit.

DTC codes / Chrysler codes / P1555

P1555 · ChryslerElectronic Variable Orifice Output

P1555 on Chrysler vehicles indicates that the powertrain control module has detected an electrical fault in the output circuit for the electronic variable orifice (EVO) solenoid, which controls power steering assist. The computer monitors the solenoid's command wire for expected voltage or current and sets this code when the signal falls outside the valid range, often due to an open, short, or excessive resistance in the circuit.

SystemPowertrain

Code typeChrysler specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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