RCU family
RCU_a040_DIgearInvalid
Not Available
What does the RCU_a040_DIgearInvalid alert mean?
The Drive Inverter (DI) gear signal has been received as invalid.
What you'll see in your Tesla
- Not Available
What triggers it
The RCU receives the DI_gear signal as Signal Not Available (SNA) for 100 milliseconds.
When it clears
The Redundant Control Unit (RCU) receives the DI_gear signal as valid for 100 milliseconds while the vehicle is parked.
Potential impact
There may be an issue with the transmitting Electronic Control Unit (ECU), IDB.
Affected models
Model Y 2025+
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