Circuit/System Description

The motor control modules and the hybrid powertrain control module 1 are all internal to the power inverter module. The motor control modules communicate only with the hybrid powertrain control module 1 with the hybrid powertrain control module 1 sending out diagnostic trouble code information to other control modules regarding the motor control modules. All circuits to the hybrid powertrain control module 1 and motor control modules are also internal to the power inverter module and replaced as a single component.

Communication diagnostics for the serial data, including control module power and ground as well as the wakeup circuits for motor control modules and the hybrid powertrain control module 1 are all diagnosed from external sources only to the power inverter module connector because any circuit fault condition within the power inverter module will cause a complete replacement.