Bosch Motronic 1.5.4

Bosch Motronic etc ECUs and PCMs
phanduc
Posts: 1
Joined: Thu Oct 27, 2016 3:22 am
cars: Suzuki Ertiga

Bosch Motronic 1.5.4

Post by phanduc »

Dear All,

I have Bosch ECU Motronic 1.5.4

This ECU has no Diagnosict connector only Test switch terminal to set initialize spark time, I could not check DTC as well as erase DTC.

Anyone can help me to check or do any things with this ECU.

Thankssss all member.
Last edited by phanduc on Mon Nov 14, 2016 10:49 am, edited 1 time in total.
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garry bull
Posts: 1
Joined: Tue Nov 08, 2016 12:18 pm
cars: VW Tiguan & UAZ-3151

Re: Read DTC of Bosch Motronic 1.5.4 F10A engine

Post by garry bull »

The similar ECU's are used in Russian cars. Pin 55 is used as K-line.
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m154
Posts: 6
Joined: Sun Mar 06, 2016 10:34 am

Re: Bosch Motronic 1.5.4

Post by m154 »

phanduc wrote:Dear All,

I have Bosch ECU Motronic 1.5.4

This ECU has no Diagnosict connector only Test switch terminal to set initialize spark time, I could not check DTC as well as erase DTC.

Anyone can help me to check or do any things with this ECU.

Thankssss all member.
hello, did you get anywhere with the m1.5.4?, cheers John
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zorktronics
Posts: 1
Joined: Sat Oct 14, 2023 3:42 am

Re: Bosch Motronic 1.5.4

Post by zorktronics »

m154 wrote:
phanduc wrote:Dear All,

I have Bosch ECU Motronic 1.5.4

This ECU has no Diagnosict connector only Test switch terminal to set initialize spark time, I could not check DTC as well as erase DTC.

Anyone can help me to check or do any things with this ECU.

Thankssss all member.
hello, did you get anywhere with the m1.5.4?, cheers John
About 5 years ago i made and sold a project of a scan tool that supports many old ecus. One of them was the M 1.5.4, it can read dtc, clean dtc, and read data from sensors. The protocol for this ecu is called kw82 and there is an official GM documment telling everything about this protocol. Its 10400bps and the signalling is electrically very similar to iso9141, if you use an usb serial cable and an iso9141 transceiver like L9637 i think that you can make a very simple software to comunicate with this module. If you still are interested on this protocol i can search and try to upload this pdf here. Take a look on my YouTube channel Zorktronics, here you will see two or three modules that i showed there how my scanner works.
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tycs03
Posts: 2
Joined: Wed Jun 19, 2024 1:23 pm
cars: suzuki carry

Re: Bosch Motronic 1.5.4

Post by tycs03 »

Hi sorry to revive an old thread. But I have managed to pull dtc codes on a f10a with m1.5.4 ECU. If anyone is interested. You have to ground pin 55 around 2.5 secs then release. The Cel(MIL) will blink and from there you can read the dtc stored in the ECU.
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