Hybrid Battery Pack Cooling Fan 2 Control Circuit/Open
The P0A96 code indicates an open or malfunction in the control circuit of the hybrid battery pack cooling fan 2. This fan is critical for maintaining optimal temperature of the high-voltage hybrid battery. An open circuit means the electrical path is broken, preventing the fan from operating when needed. This can lead to battery overheating, reduced performance, and potential damage to the hybrid battery pack.
01. Most Common Causes
- Faulty cooling fan 2 motor
- Open or shorted wiring in the fan control circuit
- Blown fuse or relay for the cooling fan
- Failed hybrid battery control module
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Hybrid battery temperature warning light
- Reduced fuel economy or hybrid system performance
- Cooling fan not running when battery is hot
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm P0A96 and check for related codes.
Step 2: Visually inspect the cooling fan 2 and its wiring for damage or loose connections.
Step 3: Test the fan motor by applying battery voltage directly; if it doesn't run, replace the fan.
Step 4: Check the fuse and relay for the cooling fan circuit; replace if blown.
Step 5: If wiring and fan are okay, test the control signal from the hybrid battery control module; if missing, replace the module.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with a non-functional cooling fan can cause the hybrid battery to overheat, leading to reduced performance, permanent battery damage, or even a fire hazard.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, depending on the root cause. Replacing a fan motor is on the lower end, while replacing the hybrid battery control module can be more expensive.