alternator wiring to vehicle harness

Asked by Jan 27, 2011 at 06:34 AM about the 1991 Chevrolet Corvette Coupe

Question type: Maintenance & Repair

Can someone please tell me the order in which the cable colors are placed at the alternator connector? There is a single thick red cable at one end of the connector and then 3 more thinner wires that appear to be brown, black and grey but the colors are deteriorated. A previous owner cut the stock connector to install a different alternator but I now need to reinstall the stock alternator and connector with proper wiring to the vehicle harness. Thanks in advance. Juan

2 Answers

11,925

The previous owner probably had a problem with the original wiring in the car and installed what is called a "self exciting" alternator just using the big red wire. IF this is the case then if you hook up the original set up it may not work. That being said the wiring configuration is in the picture below. I can probably help figure out the issue if the alternator does not work after you install the origianl setup.The plug in on the back of the alternator should have letters for the wire. Red wire is "S" - should be hot and come from a fusable link / Brown wire is is "L" and feeds the charge light in the driver instrumentation center. If you ground this wire and the instrument cluster fuse (5amp)is good will illuminate the light. The last wire may also be Brown or Pink/Black and is termisnal "F". This goes to a Volt gauge if you have one. Basically this is a self exciting alternator also so it is imoportant for the "S" wire to be hot for it to operate properly. Good Luck

2 of 2 people found this helpful.

Thanks so very much Mike. The description you have provided and the wiring diagram should be more than enough for me to rewire the new stock alternator correctly. Again, many thanks. Juan

Your Answer

Add photo

Related Questions

Search Chevrolet Corvette Questions

Chevrolet Corvette Experts

#1 John Carson
John Carson
Reputation 2,340
#2 Vincent Parker
Vincent Parker
Reputation 1,470
#3 carGrrl
carGrrl
Reputation 1,420
View All

Related Models For Sale

Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Porsche 911
91 Great Deals out of 4,513 listings starting at $10,500
Used Dodge Viper
8 Great Deals out of 309 listings starting at $24,600
Used BMW M3
50 Great Deals out of 1,361 listings starting at $3,800
Used Ford F-150
2,064 Great Deals out of 207,332 listings starting at $1,499
Used Mercedes-Benz SL-Class
45 Great Deals out of 2,814 listings starting at $4,530

Used Cars For Sale

2017 Chevrolet Corvette For Sale
4 Great Deals out of 10,269 listings starting at $46,285
2016 Chevrolet Corvette For Sale
7 Great Deals out of 1,381 listings starting at $44,165
2015 Chevrolet Corvette For Sale
9 Great Deals out of 683 listings starting at $39,999
2014 Chevrolet Corvette For Sale
4 Great Deals out of 822 listings starting at $38,995
2013 Chevrolet Corvette For Sale
13 Great Deals out of 363 listings starting at $25,437

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.