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All (almost 100) scans of T5.1 (MY10-MY15) diesel engines in my collection are identical for this one - engine - byte 4 - value 23 = only 1 fan installed, only 1 electric water pump installed.
Based on the scans the byte 3 is "00" only for vans without AC. Vans with any AC (Climatic and Climatronic) have identical codings. Thus I believe the current coding is correct.
For the byte 3 only codings 00, 12, 1A exist. I don't know what's the difference between 12 and 1A (bit 3)
Hi
intersting as today i connected the bumper OAT temp connection, started the engine and the same the fan running all the time, i dont have access to the internet where the van is, 01 ENGINE ECU i went to long coding Bit 1-2 say 02 Bidirectional climate control installed byte 4 ) with 3 1A
This van has manual aircon ,Now changed to 00 No or Manual Climate Control installed Bit 1-2 Byte 4 coding excepted. Restarted the engine as in the Fan setup for Continous running 031 ) i had no choice but to leave that as it is unless i knew the coding Manually to change it Bit 0 - 2 Byte 4=23
The van started ok and the FAN is now OFF no running i have not run it to operating temp as work in progress but i dont see why it shouldnt cut in when
at the required temp.