Electrical gremlins. Need some direction!
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Electrical gremlins. Need some direction!
Hey all,
Was gone for a while because I lost my c5 to a crazy divorce, but I have returned!
Just picked up a 96 Collector's Edition vert and am super stoked!
I wanted to tap into the wealth of knowledge here to see if I can get some of these gremlins figured out. Any direction would be super appreciated!
So far here's what I have:
1) Horn randomly doesn't work. Both buttons at times work and at other times do not. No discernable reason.
2) The fob only opens up the passenger door when clicked. Both electric door locks otherwise work, like from inside the car.
3) The HVAC blower randomly stops working and randomly picks up again. Also no discernable reason.
Do you guys have any idea where I should start looking?
Was gone for a while because I lost my c5 to a crazy divorce, but I have returned!
Just picked up a 96 Collector's Edition vert and am super stoked!
I wanted to tap into the wealth of knowledge here to see if I can get some of these gremlins figured out. Any direction would be super appreciated!
So far here's what I have:
1) Horn randomly doesn't work. Both buttons at times work and at other times do not. No discernable reason.
2) The fob only opens up the passenger door when clicked. Both electric door locks otherwise work, like from inside the car.
3) The HVAC blower randomly stops working and randomly picks up again. Also no discernable reason.
Do you guys have any idea where I should start looking?
Melting Slicks
Joined: Oct 2003
Posts: 2,189
Likes: 830
From: Chapel Hill NC
2025 c3 ('68-'73) of the Year Finalist - Unmodified
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Id check to make sure the battery and connections are all good. Id check the electrical contacts on the horns themselves. I believe a 96 HVAC will display errors codes. Not sure about the key fobs. i have none for my 96.
Melting Slicks
Joined: Nov 2016
Posts: 2,256
Likes: 3,083
From: So Cal
2023 C4 of the Year Finalist - Unmodified
The intent is that the Passive function always unlocks the driver door. The PKE can be programed to unlock driver door only, or both doors. If the PKE is programmed to only unlock the driver door, the fob button can be utilized to unlock the passenger door, if the need arises.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
100% normal operation. The fob only unlocks the passenger door.
The intent is that the Passive function always unlocks the driver door. The PKE can be programed to unlock driver door only, or both doors. If the PKE is programmed to only unlock the driver door, the fob button can be utilized to unlock the passenger door, if the need arises.
The intent is that the Passive function always unlocks the driver door. The PKE can be programed to unlock driver door only, or both doors. If the PKE is programmed to only unlock the driver door, the fob button can be utilized to unlock the passenger door, if the need arises.
Gotcha. What about if it doesn't passively unlock the driver's door? Is that a programming issue?
I figured out the horn. It's both of the common issues, the buttons and the retainer for the bayonet. I have some buttons coming in and I 3d printed a plate that will retain the bayonet.
Still gotta get the AC thing figured out, especially with summer around the corner. I know a common issue with it is to have them venting from the wrong ports, but mine is a little different. The blower motor seems to stop randomly.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Hey guys,
The 3d printer part for the horn worked out!
I am pretty sure the AC is the blower. It seems to not like when I touch the connector that goes into it. I checked for 12v with the connector off and it was there. I also tried moving the connector around while checking it and it didn't seem to lose voltage.
Weird though. Usually the blower just goes out and I've never seen the connector go bad.
The 3d printer part for the horn worked out!
I am pretty sure the AC is the blower. It seems to not like when I touch the connector that goes into it. I checked for 12v with the connector off and it was there. I also tried moving the connector around while checking it and it didn't seem to lose voltage.
Weird though. Usually the blower just goes out and I've never seen the connector go bad.
