Quote:
Originally Posted by Clavurion
Blower motor is easy to test from the connector on final stage. First measure supply voltage between pins 2 and 4. Then with two jump wires connect the voltage and ground directly to motor, pin 2 -> pin 5 and pin 4 -> pin 1.
The female pins on that connector can loose tension and connection over time. So when the connector is out clean the pins and use some contact paste. On my own X5 the problem was poor contact on that activation line from IHKA to final stage. As this is only low amp signal line there were no signs of over heating despite the poor contact stopping the motor.
https://bmwteka.com/wds/en/e53/e64507f5 |
Thank you so much Clavurion! I thought I had a blower motor failure and I am no longer able to do things for my X5 like pulling the entire dash to replace that blower motor. I was a week away from trading my 20 year old X5 in with 221,000 miles. You saved me a lot of money and stress with this simple test at the FSR. I don't know if you're still active on here but thank you so much for your knowledge.
