Toyota Repair Problems? Ask a Mechanic for Answers ASAP
The fan speed is determined by temperature sensors on the battery in the case and the control computer, first make sure there is no restrictionof the air intake vent for the battery and that the ducting is in place to the battery. Does the hybrid warning light turn on or is a check engine light on?
Good morning ,just a follow up to see if my suggestion helped fix the problem or if you need further assistance.