DI family
DI_a140_ptcMIA
Not Available
What does the DI_a140_ptcMIA alert mean?
The drive interface (DI) electronic control unit (ECU) detects that the positive temperature coefficient (PTC) heater controller area network (CAN) node is missing (MIA).
What you'll see in your Tesla
- Not Available
What triggers it
The DI ECU does not receive the expected CAN messages from the PTC heater.
When it clears
The DI ECU receives the expected can messages from the PTC heater.
Potential impact
The DI ECU is unable to determine the state of the PTC heater.
Affected models
Model 3 2017-2023
Model Y
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