Flash: Hybrid Control Processor (HCP) Updates
This bulletin involves updating the HCP with the latest available software.
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). P1A26-00 - BPCM Hybrid Battery State Of Charge Performance. P0A7E-00 - Hybrid/EV Battery Pack Over Temperature. U1003-00 - ESP Can C Bus Performance. P2534-00 - Ignition Switch Run/Start Position Circuit Low. P0506 - Idle Speed Performance Lower Than Expected. P0507 - Idle Speed Performance Higher Than Expected. One Trip DTC Changed to a Two Trip DTC.P0AC6-00 - Hybrid/Ev Battery Temperature Sensor 2 Circuit Performance. P0ACB-00 - Hybrid/Ev Battery Temperature Sensor 3 Circuit Performance. U0121-00 - Lost Communication With Anti-Lock Brake System (ABS) Control Module. U0140-00 - Lost Communication With Body Control Module. U1818-00 - Lost Communication With ECM/PCM On D-PT Can. U0100-00 - Lost Communication With ECM/PCM. U0102-00 - Lost Communication With Transfer Case Control Module / AWD. U1003-00 - ESP Can C Bus Performance. P0562 - Battery/System Voltage Low. P060C-00 - Internal Control Module Main Processor Performance. U0415-00 - Implausible Data Received From ABS. U1850-00 - Implausible Data Received From PCM on D-PT. Two Trip DTC Changed to a One Trip DTC.P0E52-00 - DC/DC Converter Current Sensor Circuit A Range/Performance. P0C39-00 - DC/DC Converter Temperature Sensor 1 Performance. P0C3E-00 - DC/DC Converter Temperature Sensor 2 Performance. P0E59-00 - DC/DC Converter Temperature Sensor C Circuit Range/Performance. P0E32-00 - DC/DC Converter Voltage Sensor 1 Performance. P0E37-00 - DC/DC Converter Voltage Sensor 2 Performance. P2C8D-00 - DC/DC Converter Temperature Sensor "D" Circuit Range/Performance. P2535-00 - Ignition Switch Run/Start Position Circuit High. P2534-00 - Ignition Switch Run/Start Position Circuit Low.
