Alerts

Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too low.

Loss of communication or power to oil pump, persistent oil pump motor stall occurred, or persistent condition affecting oil pump functionality detected

Initiates reduced drive unit performance and a speed limit on the vehicle, due to reduced gear lubrication and motor cooling

HV bus voltage exceeds set upper voltage threshold

Unable to produce torque/power from drive unit

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.

The PM detects a condition that requires it to intervene and disable powertrain.

Vehicle drive torque is immediately disabled.

The DIx power stage has applied a safe state.

Some DIx features may be disabled, or may not function expected. The Drive Unit may not function as expected.

The DIx ECU has detected an error with ADD.

Gear train and drive line thuds and noise typically dampened by ADD may be more noticeable.

The DI ECU detects an uncorrectable flash or RAM error.

This alert is for diagnostic logging purposes only.

HVIL is no longer CLOSED

Contactors may not close

The DIx power stage is not ready. One of the pre-drive gate driver checks has failed. There may be a condition affecting the DIx control board.

DIx may not function as expected.

The DI ECU resets for an unintended reason. Alert log signal data should provide more information on the specific reason.

The DI ECU is unavailable while it resets.

Stator anomaly observed during retry attempt

Drive unit may fault

The DIx current sensor hardware comparator has detected a peak on Phase C.

DIx may be inoperable.

The DIx current sensor hardware comparator has detected a peak on Phase B.

DIx may be inoperable.

Not Available

Not Available

DIx has detected a condition affecting functionality at the gate driver on Phase C. View payload signal to confirm reason for alert.

DIx may be inoperable.

DIx has detected a condition affecting functionality at the gate driver on Phase B. View payload signal to confirm reason for alert.

DIx may be inoperable.

DIx has detected a condition affecting functionality at the gate driver on Phase A. View payload signal to confirm reason for alert.

DIx may be inoperable.

Adverse oil pressure detected or DC current sensor rationality degraded, see reason payload

Drive Unit thermal estimation and limits are conservative, potential torque limiting with aggressive driving, recommend inspecting drive unit oil level and oil pump

Rotor offset mean estimator is above minimum rationality threshold at very low absolute torque outputs

Diagnostic alert data only, may indicate reduction in torque or excess heat accuracy