Notices
924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)
Sponsored by:
Sponsored by:

Fuse keep popping

Thread Tools
 
Search this Thread
 
Old 11-06-2018, 09:58 AM
  #1  
alfonso944
Intermediate
Thread Starter
 
alfonso944's Avatar
 
Join Date: Jan 2017
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Default Fuse keep popping

Hey everyone,
Has anyone here ever had fuse #9 the backup lights, side mirrors and rear wiper blow. When I turn the key to the on position the fuse blows. I’ve checked the the mirror wires from the driver door and the center console and nothing is touching. I’m hoping someone here can help me.
Old 11-06-2018, 10:20 AM
  #2  
Denny Swift
Rennlist Member
 
Denny Swift's Avatar
 
Join Date: Oct 2018
Location: PA
Posts: 1,724
Received 1,571 Likes on 663 Posts
Default

Get a wiring diagram. If you can find the individual wires that run from near the fuse box to each of the components (back up lights, side mirrors, wiper), connect an ohm meter to each end and see if the circuit is opened of closed when each end of the wire is disconnected. If you get resistance in one of the lines, that should be the culprit.

You could also try disconnecting the wires at the backup lights, the mirrors, and the wipers (to break the circuits). Assuming the fuse doesn't blow when all three components are disconnected, start reconnecting each one individually. The fuse should blow when you plug in the component on the faulty line.
Old 11-06-2018, 10:28 AM
  #3  
alfonso944
Intermediate
Thread Starter
 
alfonso944's Avatar
 
Join Date: Jan 2017
Posts: 43
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you will do!
Old 11-06-2018, 03:33 PM
  #4  
royalschwarz
Pro
 
royalschwarz's Avatar
 
Join Date: Dec 2003
Location: Michigan
Posts: 650
Received 31 Likes on 27 Posts
Default

He uses a PowerProbe to narrow down the possibilities but you don't need to. He then uses a homemade lighting circuit to find where the problem is.




Quick Reply: Fuse keep popping



All times are GMT -3. The time now is 08:41 AM.