DIREL_a091 — Esp MIA

Full alert identifier: DIREL_a091_espMIA

Alert description

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).

Potential impact

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

Set condition

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

Clear condition

The DI ECU receives the required CAN messages from the ESP.

Signals to check

These diagnostic fields are associated with DIREL_a091. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
ESP Brake Torque `DIREL_a091_ESP_brakeTorque`	—
ESP Motor Limits `DIREL_a091_ESP_motorLimits`	—
ESP Offsets `DIREL_a091_ESP_offsets`	—
ESP Party 3 `DIREL_a091_ESP_party3`	—
ESP Status `DIREL_a091_ESP_status`	—
ESP Wheel Rotation `DIREL_a091_ESP_wheelRotation`	—
ESP Wheel Speeds `DIREL_a091_ESP_wheelSpeeds`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DIREL_a091.