The Powertrain Control Module (PCM) electronically monitors and makes adjustments to the Intake Manifold Control system. This system manages the air entering the intake manifold, combustion chambers, and cylinder heads. It has metal flaps, which are individually attached to the intake manifold ports of each cylinder. The flaps are opened by an electronic stroke control actuator.
When the P2010 OBDII diagnostic code is stored, it means that the PCM has found a higher-than-expected voltage in the Intake Manifold Control Actuator / Sensor (IMRC) circuit. That code is set for one side of the engine where the number 1 cylinder is located, i.e., bank 1.