DTC P1425: Cold Start Control: Description
WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
ECM & HCM control the engine torque properly when engine is started with prewarming up condition. This control reduces the exhaust gas volume by fixing the engine torque to the low torque. In this way this control reduces the engine out emission.