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Min2xx
24th October, 2010, 07:37 PM
Hi,
I must change Dash in Audi A4 2001, magneti-marelli. I read with UPA HC08, all Ok, but can't read HC912 (5H55W), show "reset error" pin 7= 0,78 V
I find in Xprogm 3 another schema's for this MCU, what I need to use for read this?
First I used, and 6 another schematics for Xprogm

diga1
24th October, 2010, 08:19 PM
try to lift reset pin

Min2xx
24th October, 2010, 08:29 PM
I lift all used pins, only 14 on PBC, result same :(

T72
24th October, 2010, 09:26 PM
maybe will help?

green ---- BKGD
blue ---- RESET
veolet --- +5v
black ----GND

knok
26th October, 2010, 09:29 AM
Hi,
I must change Dash in Audi A4 2001, magneti-marelli. I read with UPA HC08, all Ok, but can't read HC912 (5H55W), show "reset error" pin 7= 0,78 V
I find in Xprogm 3 another schema's for this MCU, what I need to use for read this?
First I used, and 6 another schematics for Xprogm


supply dashboard and then try to connect with xprog
blue connector
1 - +VCC (14V DC)
7 - GND

knok
26th October, 2010, 09:36 AM
connections at test points edited