MALIBU HVAC Control Does Not Come On

Ratchet

Greasemonkey
Jan 10, 2018
231
28
On my 80 Malibu V6 the heater/ A-C control does not come on. I’ve checked the 25 amp fuse, cleaned the connections in the engine compartment, and at a loss as to why I’m getting nothing. No fan motor or vacuum sounds when I switch to vent.
 

Ratchet

Greasemonkey
Thread starter
Jan 10, 2018
231
28
Correct, the blower is not coming on. I’m getting nothing at all from any of the control settings, including the fan.
 

abbey castro

G-Body Guru
Oct 31, 2015
694
93
Harker Hts TX
Put a test light on the blower motor wire, if it doesn't light bad switch or an interruption to power on that wire. If it does light up bad motor.
 
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ELCAM

G-Body Guru
Jun 19, 2021
581
93
Power comes from the #6 "A.C" fuse.
1978-1981 Pontiac LeMans Fuse Box Diagram.jpg
 

abbey castro

G-Body Guru
Oct 31, 2015
694
93
Harker Hts TX
What about the ground??
All you are checking is to see if you have power at the connector end. Probe on the wire, black clip to ground. If you don't have one, make one from an old side marker.
 

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