Hi.
My first thought was that if post-cat lambda monitoring is deactivated, then I don't see why the probe heating should be causing a problem, but you could have a look at:
DHLSHK 4.50 Post-catalyst probe heating diagnostics starting on page 502
DHLSHKE 1.10 Post-catalyst probe heating end-stage diagnostics starting on page 505
I haven't translated them or attempted to analyse them in any way yet. Let me know what you find, or if you feel that a translation would be beneficial. I might not be able to do it for a while though due to work being heavy at the moment.
Regards.
TTQS
CDCHSH BLOKNR KL codeword CARB: lambda probe heating catalyst behind
CDCHSH2 BLOKNR KL codeword CARB: lambda probe heater after catalytic converter; (Bank2)
CDTHSH FW codeword tester: lambda probe heating catalyst behind
CDTHSH2 FW codeword tester: lambda probe heater after cat, Bank 2
CLAHSH FW error class: lambda probe heater after catalytic converter
CLAHSH2 FW error class: lambda probe heating 2 behind Kat
FFTHSH BLOKNR KL table environments heating lambda sensor downstream catalyst
FFTHSH2 BLOKNR KL table environments heating lambda sensor behind cat bank 2
FRINH1 TKATMF KL multiplicative factor for RIN setpoint behind Kat
FRINH2 TKATMF2 KL multiplicative factor for RIN setpoint behind Kat
KFRINH TKATMF PHLSNHF KF map for Nernst-impedance behind Kat
KFRINH2 TKATMF2 PHLSNHF2 KF map for Nernst-resistance behind catalytic converter bank 2
FW TADHMN lower temperature threshold for the diagnosis heater
TADHMX FW upper temperature threshold for the diagnosis heater
Total time errors TSFHSH FW: lambda probe heating catalyst behind
Total time errors TSFHSH2 FW: lambda probe heater after catalytic converter, bank 2
TVRI FW delay time for Ri-error after error amplifier
TVRIF FW delay time for fault-Ri
UBDLS FW battery voltage threshold for release of the probe diagnostics
UBDLSMX FW upper battery threshold voltage for the sensor diagnosis
ZKARIH FW Filter time for dynamic simulation of ceramic temp. from exhaust gas temperature. catalytic converter h.
ZKPRIH FW filter for dynamic simulation of the ceramic probe temp. from electric heating catalytic converter h.
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Maybe you could tell me what does CODEWORD TESTER MAP? I have found it in my bin but it has have weird value of decimal 14
CDTHSH FW codeword tester: lambda probe heating catalyst behind
Also in funktionsrahmen there are always used CARB error codewords. I have never found them anywhere in my bin. Do they exist?
I'm thinking just to shortconnect this function by setting TADHMN very high... What do you think?
BTW: CWDLSU and CWKONFLS are very interesting. Looks like they deal with postcat o2 sensor but I don't know their possible values