0261205005/0261205006 reversed - SC551710 question

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0261205005/0261205006 reversed - SC551710 question

Postby nh85 » Tue Mar 20, 2018 1:12 pm

Hi everybody,
ive sucesfully reversed schematics of the 005 and 006 ECU wich uses SAK C167CR. (Used in smarts). Does somebody know what does the IC SC551710. It is possibly a motorola micro, clocked with 4MHz quartz. Does it some CRC or watchdog? Ive uploaded image around the circuitry. It goes to flash 29F400 but according datasheet the pin is NC. (According to AM29F400BB datasheet). :?:
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