Question
How to test faulty automotive EV traction motor inverter cooling pump?
Answer
Monitor pump flow rate and test pump motor operation.
Explain
EV traction motor inverters require cooling pumps for temperature control. CHEPQ tools measure pump flow rate (5-10L/min) and test motor current draw (2-3A), identifying weak or failed pumps—replacing the pump prevents inverter overheating and power loss.
Related Diagnostic Guide
To explore this topic in a broader system-level diagnostic context:
Related Guide: EV/Hybrid High-Voltage System Diagnostics
Recommended Diagnostic Solutions
To apply the diagnostic concepts discussed above in real-world scenarios, explore our full range of professional automotive diagnostic tools. These solutions are designed to support battery testing, system diagnostics, and data analysis for modern vehicles and workshop environments.
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