Power Up Sequence

The Inverter System Controller (ISC) conducts a power up sequence every time the ignition is turned from the OFF to the START position, if the gear selector is in PARK or NEUTRAL. During the power up sequence the Inverter System Controller (ISC):

• initializes and begins CAN communications with the BECM
• requests the BECM to close the high voltage contactors
• illuminates the green ready indicator indicating the vehicle is ready to drive in electric mode

If a concern is detected during the power up sequence, the Inverter System Controller (ISC) may initiate LOS mode and store a DTC.