di_a190
Moderate
Tesla · Sedans
Drive inverter performance reduced
Quick Answer
Error code DI_a190 on your Tesla Sedans means: Drive inverter performance reduced. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Allow vehicle to cool down for 30 minutes before attempting to restart
2
Check coolant level in inverter cooling system via service menu
3
Inspect high-voltage connectors for visible corrosion or damage
4
Perform vehicle diagnostic scan to identify specific inverter faults
5
Contact Tesla service for inverter thermal management system evaluation
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Drive inverter coolant
HV connector repair kit
Diagnostic scan tool
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