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-   -   S/V/C: Wiring polarity at E-fan Control module plug (https://forums.turbobricks.com/showthread.php?t=323601)

SteveMD 07-17-2016 03:57 PM

Wiring polarity at E-fan Control module plug
 
Is the red wire positive, the black wire negative? I don't have a wiring diagram.

apachechef 07-17-2016 04:03 PM

Quote:

Originally Posted by SteveMD (Post 5434366)
Is the red wire positive, the black wire negative? I don't have a wiring diagram.

I'd be very surprised if it wasn't.
the HI/LO Volvo e-fan relay?
If so, Black ground, red positive, and two small wires Hi/LO speeds when grounded.
Fan works correctly as a puller.

SteveMD 07-17-2016 04:09 PM

Quote:

Originally Posted by apachechef (Post 5434368)
I'd be very surprised if it wasn't.
the HI/LO Volvo e-fan relay?
If so, Black ground, red positive, and two small wires Hi/LO speeds when grounded.
Fan works correctly as a puller.

Hmm, makes sense re. the colors but the total # of wires going into the fan control module (mounted on the fan shroud) is 3. Red, black, and a smaller gauge tan color wire which I understand is for the PWM signal.

apachechef 07-17-2016 04:13 PM

I'm thinking about the two speed relay from 1990's, not PWM sorry.http://i.imgur.com/QKS5GB5.jpg

SteveMD 07-17-2016 04:24 PM

^ my bad, it mighta helped if I had mentioned the year of this fan. 2001 or so.


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