1st time FORScan user pulled several voltage fault codes. both original motorcraft & reman duralast alternators fail autozone charging test on truck.
however both passed there bench test once removed? I have checked continuity of the 3 gen com wires from pig tail to 16 pin, while doing this and the help of a troubleshoot tech video I discovered the battery voltage constant wire was chaffed within the wire loom. spliced and heatshrinked still throwing codes.
pulled the alt and did a ohm resistance from pin 1 to alt body and got nothing according a link from the form I should have read 1.2-1.6 I got nothing?
I suspect the voltage reg is bad on alt but need to be sure before dropping almost $600 on a new motorcraft alt. Thanks in advance
Share your FORScan experience with other users
1 post • Page 1 of 1