P1555 OBD Trouble Code

1 result found

P1555 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Electronic Variable Orifice Fault Conditions
Cause

Engine runtime over 2.5 seconds, vehicle speed over 10 mph, current flowing in EVO solenoid (to increase steering effort), the PCM detected that Desired and Feedback current did not match

Try also: https://www.obd-codes.com/p1555