DI_a231_ptcMIA
DI_a231_ptcMIA
Alert Information
Category
Drive Unit
Severity
critical
Live Incidence Rate
<0.01%
Models
Model 3Model Y
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.