blowing a fuse need help!

[philly5eagle]

Started with the power windows quitting. Found # 26 blown. Replaced it a few times. Now #2 is also blowing when I replace # 26.
When they both blow, the windows don't work, interior lights don't work, the front blower quits(but the rear works) and the abs light comes on.

If I put a new # 26 fuse in a few things happen:
The headlights come on without the headlight switch being on but will not change from low to high.
The highbeam indicator will light up on the dash.
The fan blower motor can be turned on without the key in the ignition!
Sometimes the blower relay in the engine compartment will then chatter.

Eventually # 26 and #2 will get hot and pop.



I have tried swapping out the blower motor relay in the engine compartment with no change.

Some how they are all connected and something is either shorted or stuck.I cant figure it out.

Does anyone have a wiring schematic that may show how they are tied together.
Any ideas as to what is going on?
I know fuse #2 goes to: Blower Motor Relay, Air Bag Diagnostic
Monitor

I found # 26 goes to: Battery Saver Relay, Electronic Shift Relay,
Interior Lamp Relay, Electronic Shift Control
Module

If I don't put in fuse # 26, #2 doesnt blow and the windows work. So what is going on with #2 6 that causes #2 to blow and how are they connected. Something must be backfeeding.
Thanks

 

[koda2000]

Quote: Eventually # 26 and #2 will get hot and pop.

this statement makes me think you may have a ground problem, because a "short" would blow a fuse immediately. as far as the back-feeding, relays have power supplied to them which they transfer when turned ON. if a relay sticks in the "ON" position it can back-feed power. check your grounds and switch out a related relays to see if that fixes the problem.

 

[philly5eagle]

Quote: Eventually # 26 and #2 will get hot and pop.

this statement makes me think you may have a ground problem, because a "short" would blow a fuse immediately. as far as the back-feeding, relays have power supplied to them which they transfer when turned ON. if a relay sticks in the "ON" position it can back-feed power. check your grounds and switch out a related relays to see if that fixes the problem.

Any idea where I would find the ground points that would tie into this?
I've been doing some reading and I think there is a relay under the dash near the gas pedal that has something to do with the battery saver. What is strange is how the blower fan is able to run when the key is off. Somehow it is getting power when # 26 fuse is in even if the ignition is off

 

[koda2000]

Any idea where I would find the ground points that would tie into this?
I've been doing some reading and I think there is a relay under the dash near the gas pedal that has something to do with the battery saver. What is strange is how the blower fan is able to run when the key is off. Somehow it is getting power when # 26 fuse is in even if the ignition is off

the blower fan being able to run with the key off certainly indicates back-feeding. this can be useful in helping you find the offending relay. with the fan running, start pulling relays from the power distribution box (under the hood) and see which one makes the blower motor stop. when you find it, try switching it out with another similar relay (like for the A/C). if the blower stays off you've found the problem. perhaps the fuses blowing is because a relay that is only supposed to be engaged for a short period is stuck ON and overheats the wiring.

free wiring diagrams:
You can find one at http://search.ebscohost.com/. Use RRCC and rebsco when signing in

 

[philly5eagle]

the blower fan being able to run with the key off certainly indicates back-feeding. this can be useful in helping you find the offending relay. with the fan running, start pulling relays from the power distribution box (under the hood) and see which one makes the blower motor stop. when you find it, try switching it out with another similar relay (like for the A/C). if the blower stays off you've found the problem. perhaps the fuses blowing is because a relay that is only supposed to be engaged for a short period is stuck ON and overheats the wiring.

free wiring diagrams:
You can find one at http://search.ebscohost.com/. Use RRCC and rebsco when signing in

Thanks for the info ands the link! I cked the blower relay in the engine compartment but it was fine. I'm going to ck the ones under the dash in the black box to the right of the gas pedal next. I will post back with results.