Drive Motor Inverter Temperature Sensor Circuit High
The P0BDE code indicates that the powertrain control module (PCM) has detected a voltage signal from the drive motor inverter temperature sensor that is higher than the expected range. This sensor monitors the temperature of the inverter, which converts DC battery power to AC for the electric drive motor. A high circuit condition typically means there is a short to voltage, open circuit, or faulty sensor, potentially leading to inverter overheating and reduced performance.
01. Most Common Causes
- Faulty drive motor inverter temperature sensor
- Short to voltage in the sensor circuit
- Open or damaged wiring/connectors
- Corrosion or poor electrical connections
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced electric motor power or performance
- Possible overheating of inverter
- Vehicle may enter limp mode
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve freeze frame data and confirm the code.
Step 2: Visually inspect the inverter temperature sensor and its wiring for damage, corrosion, or loose connections.
Step 3: Measure the sensor's resistance and compare to manufacturer specifications; replace if out of range.
Step 4: Check for shorts to voltage or ground in the sensor circuit using a multimeter.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as the inverter may overheat, causing further damage or reduced performance. Seek repair promptly.
How much does it cost to fix?▼
The typical repair cost ranges from $50 to $150, including parts (sensor) and labor, depending on vehicle make and model.