Flash: Hybrid Control Processor (HCP) and
Auxiliary Hybrid Control Processor (AHCP) Updates
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation
the technician may find the following Diagnostic Trouble Code (DTC) has been set in the Hybrid Control
Processor (HCP) module:
? P16F0-00 - SPI Comm Hardware Fault.
Customers may also comment on one or more of the following:
? Shifts rough occasionally when coming down to a stop.
? Shifts rough occasionally when accelerating.
? Shifts rough when transitioning from EV to Hybrid operation on low SoC.
? Shifts rough when engines starts.
? On part throttle accelerations with little to no battery available the transition from battery power to engine on
is harsh and abrupt.
? The engine oil life on dashboard drops down too fast when the engine oil dilution reaches high level without
the ability to recover.
This bulletin involves reprogramming the Powertrain Control Module (PCM), Transmission Control Module
(TCM) and the AHCP also known as Power Inverter Module (PIM), with the latest available software.
