Problem
The climate control fan speed in a 2003 Prado Grande does not adjust down as expected when the set temperature is reached while in Auto mode. The fan continues to blow at a high speed even when the cabin temperature is higher than the ambient air. The issue temporarily resolved after battery disconnection, but returned.
Solution
- Ensure the climate control system is operating in “Auto” mode for automatic fan speed adjustment.
- Check for potential refrigerant leaks, as low refrigerant levels can affect climate control performance, despite the system being recently re-gassed. A leak could cause the system to perform erratically.
This technical summary was auto-generated based on recovered archives. Do not rely on its factual accuracy. Refer to the original thread. Source: View Original Conversation
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