climate control not working

2004 LINCOLN NAVIGATOR
102,000 MILES
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STEVEN SWINNEY
  • MEMBER
  • 1 POST
not working, not coming on.
Dec 24, 2021 at 4:30 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

When you say it doesn't come on, is anything happening or is it the blower motor that doesn't work?

Let me know exactly what you experience. To get you started, I attached the wiring schematic below for the system for your review. I had to cut each of the two pics in half to make them readable for you. I did overlap them and highlight wiring related to the blower motor and blower motor relay. Additionally, I circled three fuses to check. All are located in the central junction box/right side kick panel.

When you check the fuses, also make sure there is power to and from it. If the fuse doesn't get power, I need to work backward to locate where power to the fuse comes from. Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Also, confirm the blower motor relay is working as well. If there is another relay with the same part number, switch them. If there isn't, here is a link that shows how to test a relay:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Let me know what you find with this and what exactly is happening.

Take care and Merry Christmas,

Joe

See pics below. Also, the last pic shows the fuse locations in the CJB.
Dec 24, 2021 at 6:49 PM
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PANELA LEAAETOA
  • MEMBER
  • 2 POSTS
Does not cover module failure?
Sep 9, 2024 at 11:16 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

Which module are you referring to? The pic above shows the temp control module as well as the PCM.

Let me know if there is something specific you need me to find for you.

Take care,

Joe

Sep 9, 2024 at 7:46 PM