SOURCE: Blower motor stays on high, even with key out
the blower motor speed control module is defective, replace it.
SOURCE: Car malfunction
Probably anti-theft protection. The majority of cars need to have a security code input into the radio if they have been disconnected from a power source (ie dead battery, thief stealing from the car) This event makes the radio cease operation until the code has been re-entered. If I am not mistaken all functions you are describing operate through the NAV portion of the car.
SOURCE: Blower motor doesn't run
YOU CAN STILL HAVE 12.5VOLTS ON WIRE,BUT ONLY HAVE 2 STRANDS OF WIRE CARRYING IT..WILL NOT CARRY ENOUGH CURRENT TO RUN MOTOR..CHECK WHITE MAIN CONNECTOR UNDER DASH NEAR BRAKE PEDAL..TAKE APART AND LOOK FOR MELTED WIRING..ALSO CHECK WIRING AT IGNITION SWITCH CONNECTOR..THERE WAS ALSO A RECALL ON BLOWER MOTOR WIRING FOR THESE TRUCKS..CALL YOUR LOCAL DEALER AND GIVE THEM YOU SERIAL NUMBER AND MILEAGE..YOUR TRUCK MAY HAVE FELL THRU THE CRACKS IF YOUR NOT THE ORIGINAL OWNER..LET ME KNOW WHAT YOU FIND
SOURCE: how to replace ac heater blower motor
i need to know how to replace the blower motor on 300e mercedes ,please call me 718 835 2596 il greatly appreciate it
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