My blower motor is not working why?

2004 JAGUAR XJ8
54,000 MILES • V8 • 2WD • AUTOMATIC
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CHEL
  • MEMBER
  • 1 POST
no blower motor power
Dec 30, 2007 at 11:20 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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KASEKENNY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 18,907 POSTS
Normally the issue with this the motor itself however, if could be a power feed issue so we need to check these things out before we replace the motor. Here is a guide that will help with this:

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

I am attaching the wiring diagram below so that we can check voltage and find out if the blower is even getting voltage to turn on. If it is then the blower is the issue.

If it is not then we need to track it back through the system to find where the voltage is. Here is a guide that will help with this testing:

https://www.2carpros.com/articles/how-to-check-wiring

If it turns out to be the motor then here is a guide that will help with step by step instructions on replacing it:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Below is the info from the manual. Please let us know if you have other questions. Thanks
Jul 4, 2021 at 7:36 AM
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