AC fan will not shut off.
Instructor
Joined: Oct 2010
Posts: 140
Likes: 0
Hope it fixes it! The Dilbert's that designed the system stuck a 5 amp fuse in a circuit which monitors actual Blower Voltage running back to the Controls (to '89) or to the Programmer ('90 & up). Just so happens that if that fuse opens, you get the same result as a faulty Module - High Blower even with the key off. Through '89, the fuse is on the Firewall to the left of the Evaporator Case and it's wires will be the same color as what's hot at the Blower Motor (Black/Red or Purple). '90 and up puts it in the Box and should be labled PGMR or something like that. Anyway, if the new Module doesn't fix it, check the fuse and if it opened, it may need a new Blower Motor.
YOu have to take off the tank to get to it...
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 12
2nd Gear
Joined: Dec 2011
Posts: 2
Likes: 0
From: Sebastopol Ca.
Hope it fixes it! The Dilbert's that designed the system stuck a 5 amp fuse in a circuit which monitors actual Blower Voltage running back to the Controls (to '89) or to the Programmer ('90 & up). Just so happens that if that fuse opens, you get the same result as a faulty Module - High Blower even with the key off. Through '89, the fuse is on the Firewall to the left of the Evaporator Case and it's wires will be the same color as what's hot at the Blower Motor (Black/Red or Purple). '90 and up puts it in the Box and should be labled PGMR or something like that. Anyway, if the new Module doesn't fix it, check the fuse and if it opened, it may need a new Blower Motor.
