01 excursion keeps blowing #13 fuse
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Trailering
Joined: Jan 2023
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01 excursion keeps blowing #13 fuse
I've read I think every post on this... I have plug under master cylinder unplugged I've put in new relay and 2 new brake switch figuring one might have blown or what not.. I've had water issues lately with windshield leak I've even replaced fuse box.. right now I have brake switch even off brake pedal. I'm not sure if I'm missing something obviously am but idk where else to look...could there be a transmission switch that's bad? It went away for a little bit but is back... Thanks for Any help much appreciated
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Trailering
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I have that unplugged at bumper but also it is unplugged at firewall .. brake pressure is disconnected also
Hotshot
Joined: Jan 2004
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From: St Louis
Is the fuse F13 under the hood or under the dash? The truck has both...
WHEN does the fuse blow? Immediately upon insertion or only when you do something (what?) else?
If under dash... and if "immediately", have you unplugged the brake pedal switch, brake pressure switch and the flasher relay to see if the fuse still blows?
WHEN does the fuse blow? Immediately upon insertion or only when you do something (what?) else?
If under dash... and if "immediately", have you unplugged the brake pedal switch, brake pressure switch and the flasher relay to see if the fuse still blows?
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Trailering
Joined: Jan 2023
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#13 under dash. Only pops when press on brake pedal if I disconnect plug from brake position sensor on pedal doesn't pop. I have it disconnected at master cylinder and read that fluid can bleed to cruise control unit going to check that today hopefully... Also found a diagram online to where that plug wires go to to eliminate those too
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Hotshot
Joined: Jan 2004
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From: St Louis
If it only blows when the brake pedal is pressed, you have a wire shorted to ground in the stop lamp circuit as marksman76 alluded to in post #2.
With everything properly connected, do your hazards work properly or do they blow the fuse when activated?
With everything properly connected, do your hazards work properly or do they blow the fuse when activated?
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Trailering
Joined: Jan 2023
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I have the taillights unplugged at firewall so from firewall back shouldn't be issue idk if the short is in the speed control servo or abs module. I haven't unplugged pcm. I've inspected wires for breaks or crack under dash
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From: St Louis
Describe the connector you have unplugged at the firewall - shape and number of pins.
Have you tried unplugging the connector to the multi-function switch to see if that makes a difference in the fuse blowing when the pedal is applied?
Have you tried unplugging the connector to the multi-function switch to see if that makes a difference in the fuse blowing when the pedal is applied?