so i had a flat battery the other day. charged the battery, van started no problem. charging system on van is good. the battery tests good too.
im thinking there is a discharge somewhere. i put a bulb with a wire between the negative terminal of the battery and the negative cable. with ignition & everything off, the bulb illuminates. it actually pulses. we think this test confirms our discharge theory. something is using some power when it shouldnt be. the pulsing made us think relays....
today i also noticed, when i do the bulb test, there is a clicking sound in time with the bulb pulsing and it comes from behind the interior fuse box. no idea what it is.
can someone confirm our bulb test is doing what we want - does it prove there is a discharge?
things i have done-
removed all relays one at a time, bulb always light up
removed indicator relay, no change
any ideas on what to do next?
many many thanks