my_elbow Posted June 22, 2015 Share Posted June 22, 2015 After a day spent changing the PAS rack bushings, i've been greeted with a flat battery! Got a jump start and had a drive, to find out my brake lights (parkers are ok, just pedal brake lights) are both out, and a flat battery every morning. I rigged up the multi-meter and pulled the offending fuse that was taking all my power, but checking against my pair of manuals gives little to no description as to which fuse powers what! I've included a picture of the offending circuit which has had its fuse pulled. ( a note that the car has been fitted with air-con at some point in its mysterious past)Thoughts on where to start to stop the battery drain? Quote Link to comment Share on other sites More sharing options...
piman Posted June 22, 2015 Share Posted June 22, 2015 Hello My Elbow, you look to only have two circuits off that fuse, either interior lights\glove box light (if you have one)\boot light (ditto) or horns and headlight flasher and possibly a cigar lighter.I'd go for either a glovebox light or a boot light. If they are not obviously the cause, I'd split the two circuits (cut the crimp off) then with a fuse back in, put a multimeter on thye amps range between the fuse and the purple wires in turn and see which is drawing the current. Reconnect the wire that is not drawing the current and see what is now not working, that's the circuit(s) you need to investigate.Alec Quote Link to comment Share on other sites More sharing options...
DougBGT6 Posted June 22, 2015 Share Posted June 22, 2015 I like number 2 fuse, fuse block jaws a bit slack perhaps?! You say the empty fuse is the culprit? Are there 3 purple wires? If it's like other Triumphs purple goes to, main beam dip switch, horn relay + hazard flasher unit and interior light + ignition key light.Having said that the other fuse's look a bit modified so who knows what else has been tacked on! Good luck! Quote Link to comment Share on other sites More sharing options...
wild bill Posted June 22, 2015 Share Posted June 22, 2015 Fuse No.2 is not in it's holder.It is pushed down the side of the fuse clamps!Agree with Alec on this one.Good Luck!Bill. Quote Link to comment Share on other sites More sharing options...
Rod 2500S Posted July 3, 2015 Share Posted July 3, 2015 My elbow did you sort this? I'm intrigued as to the problem because it may rear up and bite me as well, although I have replaced the 4 fuse holder with an 8 and split some circuits etc.CheersRod Quote Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 3, 2015 Share Posted July 3, 2015 simplest drain is the boot lamp switch has been bent and wont turn off when lid is closed.worst is alternator diode has failed Pete Quote Link to comment Share on other sites More sharing options...
Rod 2500S Posted July 4, 2015 Share Posted July 4, 2015 what about the dash clock?? Quote Link to comment Share on other sites More sharing options...
nang Posted July 4, 2015 Share Posted July 4, 2015 If you have a rare working dash clock the drain is negligible. Take off earth terminal and put a voltmeter between battery and earth. If you pull fuses one by one you should be able to narrow where the volts are going.Tony. Quote Link to comment Share on other sites More sharing options...
my_elbow Posted July 11, 2015 Author Share Posted July 11, 2015 Still no luck on the drain, and measuring it at .02 milliamp now, which is barley anything! No glovebox light (only found out it should have one since reading this thread!) and the clock is of course not working. My brake lights are still out though - using the foot pedal gets nowhere! Checked the switch which is fine, but it doesn't seem to be getting any current. Is there a fuse hiding in the loom ? Quote Link to comment Share on other sites More sharing options...
piman Posted July 11, 2015 Share Posted July 11, 2015 Hello My elbow,that amount of drain is minuscule, possibly within bounds of meter error? Certainly would not drain your battery even if left for a month.The stop switch is fed from the ignition fed fuse (green wire) and then goes on to feed the voltage stabiliser and the tachometer, so if those are working you should have power at the switch. Check the cleanliness of the spade connector (and that the ignition is on?)?Alec Quote Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 11, 2015 Share Posted July 11, 2015 if its going flat that quick with such a small drain current its looking more like the battery has some cell problems Pete Quote Link to comment Share on other sites More sharing options...
nang Posted July 11, 2015 Share Posted July 11, 2015 Probably silly question but does car have overdrive ? If so and someone has wired it to a non ignition switched feed and o/d was left turned on, battery will go flat overnight.Don't ask me how I know Tony. Quote Link to comment Share on other sites More sharing options...
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