bad Suzuki SAS (Steering Angle Sensor) IC identification

[kahe.becumu]

Hello,
I have a broken Suzuki SAS (Steering Angle Sensor) that I am trying to fix, and there are a few ICs I had no luck identifying, I tried to google them and search various websites without luck.
I am trying to find the datasheets of those ICs.
any help provided is appreciated

[Tim S]

IR is International Rectifier, now part of Infineon Technologies. Not familiar with the device, but I wouldn't hold much hope. You may be better looking on auction sites for a good used one.

[coromonadalix]

same here, automaker(s) love to have their own proprietary chip(s)

better go to a scrap yard ...

the IR  logo  is not International Rectifier

the ic markings look like laser engraved,  could be hidden known brand 

better post on Suzuki forums than here

[wraper]

same here, automaker(s) love to have their own proprietary chip(s)

They love off the shelf parts relabeled with their own part number.

[kahe.becumu]

that is so anti-repair and sucks, I wasted hours trying to fix the sensor.
I tried to search in a scrap yard and found a similar one, but the car did not accept it when I looked into the CAN messages the message ID between the sensors was different,
the old one is 0x119 and the new one is 0x115, and I have no clue how to code the ESP or the ECM to look into the other sensor message ID, or how to change the other sensor ID to 0x119.
The dealership is asking for crazy prices, they've quoted me 1/4 of the car price just for getting a new sensor and installing it.

[HwAoRrDk]

the IR  logo  is not International Rectifier

Yes. It's not an "IR", just "R". That is actually the logo of Tokai Rika. They are a Japanese OEM that produce all sorts of electronic systems for automotive manufacturers. For example, in my own car the electric window controls are made by them.

You won't find a datasheet for the chips because they are proprietary to Tokai Rika.

Although, I suspect that they don't make their own chips, but rather they are custom-marked parts produced by other manufacturers (I would bet some other Japanese manufacturer like Renesas).

[inse]

Probably a mask-programmed microcontroller with customer defined markings…
That’s common practice, I also work at an OEM

[Stray Electron]

  I don't know about Suzuki but many auto manufacturers are now installing modules that have an electronic serial number and the main computer in the car has to be programmed on a factory supplied, dealer only, diagnostic system to accept the new module.

  Over five years ago I was told that the NEW modules for BMWs are blank and that the first three times that you start the car with the new modules, it reads the serial number of the main computer and upon the third start up, the module permanently stores the serial number and after that it can never be used with a different computer.  The short version;  used BMW modules can NEVER be used in another car. 

   There are many possible ways that the auto manufacturers could implement such schemes.  You need to go to work with an oscilloscope and/or a logic analyzer and figure out what they're doing. Or go on a Suzuki forum and see if anyone has already done that.

[FIXITNOW2003]

join this car forum and try asking there on how to code replacement unit
https://carforum.tehas.ee/index.php

[coromonadalix]

yes  many peripherals have serials numbers and the main / ECU has to acknowledge them,  just changing it, does not do the job,  you have to re encode it

Even Radio's with navigation ...

Or  some people grab the ecu and the others ... but at some point you'll get stuck getting all of them,  stripping a complete car for 1 module ?

Some use CANBUS tools to sniff out communications ...


I had many GV's an the last one a Suzuki GV 2010 3.2l (a mix of many brands and a gm motor in it)   i was "lucky" cough cough   to find the Suzuki  SW tools to do that and get the obd2 interface, i had esp and abs problems, had to re-code the brake module serial into the ECU  ...