DI_a140 — Ptc MIA
Full alert identifier: DI_a140_ptcMIA
Alert description
The drive interface (DI) electronic control unit (ECU) detects that the positive temperature coefficient (PTC) heater controller area network (CAN) node is missing (MIA).
Potential impact
The DI ECU is unable to determine the state of the PTC heater.
Set condition
The DI ECU does not receive the expected CAN messages from the PTC heater.
Clear condition
The DI ECU receives the expected can messages from the PTC heater.
Signals to check
These diagnostic fields are associated with DI_a140. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
PTC Feedback Status
DI_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DI_a140.