Repairing my 944 tail lights – Tail light fuse late 944
After my last trip to AMP for track night, I ended up having to drive my race car home due to a tow vehicle failure.
Last night I decided to dig into why the tail lights were not working. I expected to find a loose wire or failed bulb. Neither of these
I then decide to check the fuses and after searching the inside of the fuse box and several internet searches, I could not find a listing for the tail light fuse. I read through a couple of forums and still no mention of a tail light fuse.
So next I printed out the wiring diagrams. These are hard for me to follow but even more so in that
So I pulled the tail lamp assemblies apart and traced the wires from the non-functioning bulbs to the connector and determined the wire color on the harness side fo the connector. That is when I noticed that a previous owner had redone the wiring so that the left side tail light was jumpered to the right side taillight. I found that odd but continued.
I finally figured out that the tail light bulbs also power the side markers. I don’t have side markers on the race car but I do still have the plugs dangling from the tail light housings. I remembered seeing a side marker fuse listed when I was researching.
So fuse 40 and 41 are listed for the side markers. Sure enough, both these fuses were blown. I tried replacing fuse 40 and it would instantly pop indicating a dead short. Fuse 41 seem loose.
After tracing the wiring diagram again, I figured out why the previous owner had jumpered the two tail lights together. The left
I then replaced the fuse for the right side marker circuit and wiggled it around to get it to seat properly. After some wiggling of connectors in the rear of the
I will later go back and see if I can locate the short in the left
Update: I found the short: /http://mikestrawbridge.com/blog/2018/10/short-finder-tool/