Blower motor

MLLD1

MEMBER
2007 LINCOLN NAVIGATOR
5.4L
V8
4WD
AUTOMATIC
108,000 MILES

Replaced blower motor and it still does not turn. No air from dash but rear works okay except for a clicking noise. Performed self diagnostic test of electronic temperature control module. Received a "rear on con" and then at the end of test had a 29 on the left side of the module screen and a 16 on the right. This appears to be a blend door actuator code and that I believe is the clicking of the rear system. Is not the front and rear system separate? If so where do I go next? I have checked the resistor with an ohm meter and got zero readings but was not sure I did it right.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

Hello,

Yes the systems are separate except they share the same compressor. So you have a blend door actuator that is out in the rear air.

Here is a guide to show you what you are in for when doing the job and a diagram (below) so you can see what it will be like on your car.

https://www.2carpros.com/articles/replace-blend-door-motor

and it could be a relay, or resistor that has gone bad for the front. Here are some guides and a wiring diagram (below) so you can do a simple test to fix the problem.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please let us know what happens, we are interested to see what it is.

Cheers, Ken

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