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se93
11th April, 2017, 03:11 AM
Can anyone disable DTC P1423 and P1421 in Siemens MS42 ECU? When scanned with INPA diagnostic software the codes are 245 and 246

This ecu is for BMW E46.

File is enclosed.442155

Cloudforce
12th April, 2017, 01:40 PM
Did you change configuration switch sa(p)?

se93
12th April, 2017, 01:44 PM
Did you change configuration switch sa(p)?

Yes i did but keep getting codes 245/246https://uploads.tapatalk-cdn.com/20170412/cfaf0896c1b055c2aed2a3e5e71c9a5e.jpg

I set MIL to "0" but then the SES light does not turn on. So i set MIL to "2" and the SES light works properly. I just need to see if in the next day or so if the 245/246 SAP codes come back with this config switch setting


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se93
15th April, 2017, 12:13 AM
Did you change configuration switch sa(p)?

MIL config set at "2" and SAP error codes reappear


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Cloudforce
18th April, 2017, 05:50 AM
seems like its currently configured to expect a secondairy airflow meter...

Cloudforce
18th April, 2017, 09:12 AM
Change the following bit "8d" to "0d" at position 0x3DB0E and correct checksums!

se93
18th April, 2017, 10:54 AM
Change the following bit "8d" to "0d" at position 0x3DB0E and correct checksums!

Ok. I will do this tonight and report back with results.


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