To clarify, I previously traced the entire power drain from the 50A INT BAT to the interior 10A RDO BAT fuse. However, your 30sec request added new twist to data;
No RDO BAT initially tested high 0.6 to 0.7, then slowly settled to 0.55A after 30 sec
With RDO BAT, the test initially registered between 1.95-2.0A for 20 sec, then would drop to 0.55A. I tested this three times and same each time.
After this new data, I guessed this is only a temporary drain and not the long term problem draining my battery dead. So I was going to focus on what was causing the 0.55A drain.
Per an online recommendation, I tried pulling the TBC fuse (Truck Body Computer) and got no reading. Thinking this was odd, I put fuse back in and noticed my tester was going whacky on the 10A setting - numbers bouncing around. The other settings (voltage, ohms, etc) appear to work fine, but figured I must have fried the 10A setting somehow, as there was no spark when contacts touched separate points for negative terminal as before.
If you agree, any ideas how this got fried? Was it testing for full 30 sec or something with the no TBC test or was it b/c it was a cheap unit ( $8) at Wal Mart.
My tester says 10A/15sec max each 15 min, so I began thinking that maybe my tester crapped-out on purpose after 20sec and gave the lower reading, but since it lined-up perfectly (0.55) wasn't for sure.
What do you think?
Monday, January 6th, 2020 AT 4:52 PM
(Merged)