Drive Motor Inverter Temperature Sensor H Circuit

Where it lives

For P0E28, the sensor sits on the circuit this code reports. The description of P0E28 reports a fault at the sensor.

Check these first

• An open or shorted drive motor inverter temperature sensor H circuit
• A failed sensor H inside the inverter
• Corroded pins in the sensor H connector
• A broken wire between sensor H and the inverter board

What to do next

1. Inspect the sensor H wiring for opens and shorts
2. Check the sensor H connector for corrosion
3. Measure the sensor H signal with the system powered
4. Compare the reading to ambient
5. Service the inverter if the sensor circuit does not recover
6. Clear the code and retest

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