Very High DC-Bus Voltage
Bad connection between MGU and propulsion battery, check connections
What you'll see
No propulsion from MGS available. May also set fault codes of short circuit-
System reaction
Short-circuit of electric motor by inverter. Yellow OBD
Diagnostic depth
Evaluation Condition Always. Set Condition A first-order low pass filter is used (same as for FilteredVoltage) for voltage. DC bus voltage is above high level. Clear Condition A first-order low pass filter is used (same as for FilteredVoltage) for voltage. DC bus voltage is below high level.
Using braking torque with with no battery or bleeder connected to DC bus Braking power exceeds battery's limits (e.g. cold battery) External power source on DC bus raises the voltage Bad current control settings Internal sensor failure