03-24-2014, 03:07 AM
Quote:TTL chip 74hc152 pin 16 is power VCC, (datasheets are google easy today to pull up)didn't find it don't know what it is?
Did some more tests here
bench test with B1 B2 hooked up. same results before and after CAP replacement;
B1 12.38v
Ic7 2= 11.76v 3=12.36v 13=5v
Ic10 14=5 v
Ic1 43=5 v
Ic2 42= 5 v
C105 5 v
A23 5 v
Q100 b=11.76 v c=5 v e=12.34 v
B6 0 v
Q103 b=0 v c=0 v e=0 v
Q5 ?? small with 3 pins 2= 0v 1= 3.75 v
Q9pin 2 ?? 3 pins 0, .64v, .17v
Zeiner ?? D105? 11.76 & 0 v
Connectors
Green
B1 12.36v
B7 12.36v
B12 12.13 v
Yellow
A2 12.12 V
A4 11.97 V
A6 12.26 V
A7 111.79 V
A13 5 V
A14 5V
A15 4.77 V
A16 4.46 V
A17 4.71 V
A18 4.76 V
A18 4.76 V
A20 5 V
A22 4.81 V
A23 5 V
THE REST ARE 0 V
The CAP's had ruby disease for sure. goo from c111 lots and c103 less
Once removed I tested the copper circles at the solder points on both sides of the board. I assume these are the VIA's. All CAP locations had continuity from one side of board to the other. You could see the darkened circle from the CAP goo. I scratched it up with a pin to reveal copper.
Post CAP change I hooked up CEL from B13 to B2 and disgnostic ground A3 to B2. No flash nothing.total crap!
Quote:shorted outputs blow ECUs
I have not tried it in vehicle. Not expecting much.I think I need another ECU. I will test outputs before trying this brick o CRAP!
Thanks again