Technical data

18
 Troubleshooting4
Air pressure sensor diagnosis using
EDiTH diagnostics tool and ISO adapter
(OrderNo.221524890000)
Anadditionaladaptercableisrequiredtoconnectthe
ISOadapter(OrderNo.:221000333100).
Theairpressuresensorconnectedtotheheatercanbediag-
nosed.Iffaultsoccurduringthealtitudeadjustmenttheyare
storedintheairpressuresensor.Ifnecessary,faultscanbe
readoutusingtheISOadapterinconjunctionwiththeEDiTH
diagnosticstool–fromVersionS3V7-F–andtheadditionally
necessaryadaptercable.
Please note!
• Itisveryimportanttoalwaysinstallinthegivenorder.
• Notonlythedefectivecomponent,butalsoadefectivecur-
rentcircuitresultsinafaultbeingdisplayed.
• Faultcode,faultdescription,cause/remedialactionare
describedonpages27.
• TheEDiTHdiagnosticstoolscopeofsupplydoesnot
includethesoftware;thismustbedownloadedfromthe
ServicePortal.
Perform diagnosis of the air pressure sensor
Disconnecttheconnectorbetweentheairpressuresensor/
heater,controlunit,connecttheISOadapterwiththeadapter
cable(seesketch).
Startthediagnosisoftheairpressuresensor.
• Double-clickthe>>EDiTH<<icononthedesktop.
• Selecttheairpressuresensorinthe»HeaterandTestSe-
lection«.
 Thefollowingactionsarepossible:
– Readoutthecurrentfaultandthefaultmemory.
– Deletethefaultmemory.
– Querythecurrentmeasuredairpressure.
– Querytheoperatingstate.
– Querythegeneraldata.
– Printoutthefaultmemoryand/orthegeneraldata
• Exitthediagnosiswiththe»Stop«buttonorbyclosingall
windows.
– Selection:Saveanalysis/Donotsaveanalysis
• RemoveISOadapterandadaptercablefromtheleadhar-
nessandreconnecttheairpressuresensor/heater,control
unitconnector.
1 Airpressuresensor
2 Adaptercable
3 Cableloomfromheater
4 Cableloomtocontrolunit
5 ISOadapter
6 SUB-Dconnectioncable
7 USBtoSerialRS-232adapter