Agreed, it’s likely the blend motors.
I removed the entire dashboard and heating box, thoroughly tested and replaced all the blend motor and rebuilt the box. However, the book symbol still appears, which is probably because there’s no refrigerant in the system rather than an issue with the blend motors.
You can find replacement blend motors online, either used or by searching for Valeo Peugeot 405 blend motors, as they were also shared with the P38.
I didn't use any kind of code reader.
Heating/ventilation works great now! 2012 4.4 TDV8 Westminster - Baltic Blue, Jet interior
1997 P38 2.5 DSE auto & 1998 P38 2.5 DT Manual
1988 Vogue 3.5 EFI - Manual, gone.
2004 Volvo C70 2.0T convertible, had since new.
2007 Mazda MX-5 2.0 Sport Roadster/Coupé, had since new.
2024 Mini Cooper S cabrio, JCW kit, 2.0, DCT auto
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