P0AF2 Fault Code

Drive Motor Inverter Temperature Sensor "B" Circuit

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

The P0AF2 fault code indicates a potential issue with the Drive Motor Inverter Temperature Sensor 'B' Circuit. This sensor plays a crucial role in monitoring the temperature of the inverter, ensuring it operates within safe limits. If the sensor provides inaccurate readings or fails, it can lead to overheating and damage to the inverter, impacting vehicle performance and efficiency.

What are the symptoms of the P0AF2 code?

Common symptoms associated with the P0AF2 code include:

• Warning lights on the dashboard, typically a check engine light
• Reduced performance or power output from the electric motor
• Increased operational noise or malfunctioning of the inverter
• Overheating issues, with the vehicle entering limp mode to prevent damage.

What causes the P0AF2 code?

Several factors can lead to this fault code, including:

• A malfunctioning temperature sensor
• Wiring issues such as shorts or opens in the circuit
• Poor connections or corrosion in the sensor connector
• Software glitches in the vehicle's control module
• Overheating of the inverter itself due to inadequate cooling.

How to fix P0AF2?

To resolve the P0AF2 fault code, the following steps should be taken:

• Inspect and test the temperature sensor for proper functionality
• Check the wiring and connectors associated with the sensor for any damage or corrosion
• Ensure that the cooling system for the inverter is functioning correctly and not obstructed
• Reprogram or update the vehicle's control module if necessary
• In some cases, replacing the temperature sensor may be required.