Alerts

Alerts

Signal Name Description Condition Impact
The drive interface (DI) electronic control unit (ECU) detects that the electronic stability program (ESP, also known as traction control) controller area network (CAN) node is missing (MIA).
The DI ECU is not receiving the expected CAN communication from the ESP, and considers it irrational or MIA.
The DI ECU is unable to monitor the state of the ESP.
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the pedal monitor (PM) controller area network (CAN) node is missing (MIA).
The DI ECU is not receiving the expected CAN communication from the PM, and considers it irrational or MIA.
The DI ECU is unable to monitor the state of the PM.
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the gateway (GTW) controller area network (CAN) node is missing (MIA).
The DI ECU is not receiving the expected CAN communication from the GTW, and considers it irrational or MIA.
The DI ECU is unable to monitor the state of the GTW.
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference above the upper rational bound.
Any ADC channel reference is above the maximum rational value.
The vehicle is blocked from shifting out of Park.
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference below the lower rational bound.
Any ADC channel reference is below the minimum rational value.
The vehicle is blocked from shifting out of Park.
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.
LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold
Drive unit enters unit limp mode (see DI_a126_limpMode)
Drive Inverter Warning: Heatsink sensor bad
Abnormal temperature measurements from heatsink sensor
Unable to monitor heatsink sensor temperature
Drive Inverter Warning: Heatsink under temperature
Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold
No direct impact. Could damage drive inverter if temperature is continuously too low.
Drive Inverter Warning: Ambient sensor bad
Abnormal temperature measurements from ambient sensor
Unable to monitor ambient sensor temperature
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery undervoltage event.
LV supply voltage to DI is disconnected or drops below lower voltage threshold.
The DI ECU triggers limp mode (see separate limpMode alerts) and cannot produce torque or power.
Drive Inverter Warning: No Stator sensor available
All stator sensors are giving abnormal measurements
Drive unit enters unit limp mode (see DI_a126_limpMode)
Drive Inverter Warning: Stator sensor 1 bad
Abnormal temperature measurements from stator sensor 1
Stator sensor 2 will be used instead (if available)
Drive Inverter Warning: Outlet sensor bad
Abnormal temperature measurements from DI coolant outlet sensor
Unable to monitor DI coolant outlet sensor temperature
Drive Inverter Warning: Outlet under temperature
DI coolant outlet temperature (refer to outletTemp) drops below lower temperature threshold
No direct impact. Could damage drive inverter if temperature is continuously too low.
The drive interface (DI) electronic control unit (ECU) detects that the rear drive interface (DIR) controller area network (CAN) node is missing (MIA).
The DI ECU is not receiving the required feedback CAN messages from the DIR.
The DI ECU is unable to monitor the state of the DIR.
Drive Inverter Warning: Stator over temperature
Stator temperature exceeds upper temperature threshold
No direct impact. Could damage drive unit if temperature is continuously too high.
Drive Inverter Warning: The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is an interface version mismatch. Service is needed.
The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is a mismatch between their interface version.
The Secondary Disconnect Controller (SDC) may not be monitoring potential drive unit failures.
The drive interface (DI) electronic control unit (ECU) detects that the front drive interface (DIF) controller area network (CAN) node is missing (MIA).
The DI ECU is not receiving the required feedback CAN messages from the DIF.
The DI ECU is unable to monitor the state of the DIF.
Clutch Driver Fault
Clutch driver has fault condition
Clutch may disengage
Drive Inverter Warning: Battery sensor bad
When HV bus is up, DI measured bus voltage very low or disagrees with BMS reported voltage
Drive unit enters unit limp mode (see DI_a126_limpMode), faults (Model 3 only)