Alerts

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

DIx may be inoperable.

No

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

No

Inverter detects a shorted switch

Inverter may not allow drive on next drive cycle

No

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

No

Bus voltage is high while active discharge is ON

Potentially exposed high voltage

No

Motor regulation fails to meet command inputs

Drive unit enters unit limp mode (see DI_a126_limpMode)

No

Number of qualified high speed events above allowed threshold

Silent alert to track mechanical wear

No

Ambient temperature (refer to pcbTemp) drops below lower temperature threshold

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

No

Drive Unit GPO has been triggered. The Drive Unit will lose current input from the HV battery.

The Drive Unit will ramp down all torque production. The Drive Unit may not function as expected.

No

Abnormal condition detected within drive unit subsystem. Look at limpReason in alert for exact trigger.

Drive system performance severely reduced (torque/power limited)

No

Motors are not responding to DI commands

Unable to produce torque/power from drive unit

No

Any received HVLINK frame is MIA

Active discharge may turn ON

No

The DI ECU is not receiving the expected CAN communication from the HVP, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the HVP, and active discharge may turn on.

No

The DIx node is MIA on CAN for one or more messages. The DIx node or DIx may have a condition affecting functionality.

DIx may not be able to communicate with the High Voltage Processor (HVP).

No

The DI core detects an abort data exception. Alert log signal data provides information on the specific condition(s) detected.

This alert is primarily informational and is used for logging purposes.

No

The three DIx heat sink sensors are not functioning. The DIx heat sink sensors may have a condition affecting functionality.

Since it cannot detect temperature as expected, DIx may limit power output to an operational level. Drive Unit performance may be impacted.

No

The DIx ECU detects no phase current. The phase lugs, stator, rotor, or DIx may have a condition affecting functionality.

Without phase current, DIx cannot produce motor torque to rotate the wheels. The vehicle's drive cycle may not function as expected, or at all.

No

The DIx EEPROM has reported phase sensor calibration is outside valid range.

This alert is primarily for logging purposes and appears in conjunction with other alerts.

No

The DI ECU is not receiving the expected CAN communication from the EPB, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the EPB.

No

The DI processor detects an exception.

This alert is primarily informational and is used for logging purposes.

No