Originally Posted by
tshort2007
Buy/Borrow a multimeter.
plug the cable into 10A unfused, and the common sockets. Turn meter to "10A"
Pop bonnet, and close all doors, wait for all lights to turn off
remove earth cable from battery
attatch red lead from meter to battery.
attatch black lead to removed cable
Wait about 60 secs for ECU and dash to turn off
Should read no more than about 0.05
Anymore and you have a drain. Id assume an overnight drain to be sucking about a 5Amp current (5.0 apx on the meter)
TO CHECK ALTERNATOR (COMMON DRAIN FAULT)
With earth lead still removed, remove the cable from the positive terminal of the battery held in by a 13mm hex headed M8 bolt (this is the starter/alternator feed) Ensure its not touching body.
Repeat test with meter. If reading drops to 0.0, then either alternator or starter is ******ed. Remove the 25a fuse labelled "F2" from the fusebox to the right of the battery. Re attatch M8 bolt and cable to positive terminal.
Repeat test, if reading 0.0 apx, then starter motor broke, if reading 5.0 apx again, then looks like diode or regulator pack on alternator broke.
Im having the same issue, and i need a refurb alternator
Bookmarks