P0AEF Fault Code

Drive Motor Inverter Temperature Sensor "A" Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0AEF fault code indicates that there is an issue with the Drive Motor Inverter Temperature Sensor 'A' Circuit. This sensor is crucial for monitoring the temperature of the drive motor inverter, helping to prevent overheating and ensuring the efficient operation of the electric vehicle system. When this code is triggered, it usually signals that the temperature readings are lower than what the vehicle's control unit expects, suggesting a malfunction in the sensor or its circuit.

What are the symptoms of the P0AEF code?

Common symptoms associated with the P0AEF code include:

• Activation of the check engine light or warning indicators on the dashboard.
• Decreased performance of the hybrid or electric powertrain.
• Unusual noises from the inverter area.
• Possible overheating issues if the inverter temperature is not managed properly.

What causes the P0AEF code?

Several factors can lead to the P0AEF fault code, including:

• A faulty or malfunctioning drive motor inverter temperature sensor.
• Damaged wiring or connectors in the sensor circuit.
• Poor electrical connections leading to erratic sensor readings.
• Issues in the vehicle's electronic control unit that affect sensor interpretation.

How to fix P0AEF?

To resolve the P0AEF fault code, the following steps may be taken:

• Use a diagnostic scanner to confirm the code and check for additional trouble codes.
• Inspect the drive motor inverter temperature sensor for defects or damage and replace if necessary.
• Examine the wiring and connectors for signs of wear, corrosion, or short circuits and repair them accordingly.
• Clear the fault codes and perform a test drive to ensure the issue has been resolved.