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WOW! If the heater fan relay is in the same place on a 95 that it is on a 96, your gonna have fun getting to it! Trust me on this one, GM's strong point has never been wiring let alone, how they accomplished tie deed.

If your looking for the heater relay, I'm assuming that you've already found the power distribution block and relay distribution centers located separately in the engine compartment and you've also located the power distribution center (smaller fuse panel) in the drivers area to no avail. Unfortunately, there is another power distribution and relay center that is hidden in the passenger area, when I say it's hidden, I'm not even joking. It's located between the heater core box and outside fender skin and just behind passenger side hinge post. I don't remember if you will be able to see it by removing the glove box or if you have to remove the many under skirting panels and dress parts to get a glimpse at it, either way, it's nearly impossible to reach let alone, trouble shoot or repair and may God help you if any of the several relays or fuses need repaired or replaced. This is no exaggeration, if you do manage to get a look at it, it'll be the only daylight this thing has been exposed to since it was stuffed into the hole that was built around it.

The heater relay that you're looking for is not just another simple relay, its part of an intricate circuitry known as you climate control system. If by chance you are looking for this relay because your heater unrepentantly comes on by itself even while the key is not in the ignition, you may be in luck. If this is the problem that your experiencing, check to see if the display is also coming for you climate control and temp display. If it is then your problem is not the relay, it's the accessory power distribution center relay which I suspect may also be located in the dreaded "hidden panel".

What I did was this and it works great! I dropped the fuse panel on the drivers side, clipped the wire that was powering the accessory center and climate control. I then added a micro relay (a Bosch relay will also work) across the open wire to bridge the circuit and used the ignition fuse to key the relay. This way the original power source for the hidden panel is still in tact and yet the switching source is now controlled by the redundant source that you just added.

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12y ago
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Q: Where is heater fan relay on a 1995 Olds Eighty Eight LSS?
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