Ntr Diagnostic Procedures - Alfa Romeo 159 Training Material

ELECTRICAL
SYSTEM

9.2.7 NTR diagnostic procedures

Foreword
This function is used to run diagnostic procedures on system parts.
The NTR must be capable of identifying and storing the following faults:
Transponder:
faulty, missing or wrong secret code
o
cancelled/deactivated
o
unknown/not stored
o
Transponder antenna:
faulty battery connection (open circuit, short-circuit to ground or to battery).
o
The following parameters/data can be read using Examiner:
Code system state:
clear (whenever a TEG is inserted)
programmed at end of line (whenever a TEG is inserted)
spare part (whenever a TEG is inserted)
Number of programmed TEGs; the following data is available for each TEG inserted in the NTR
TEG ID
position in the table
whether the transponder is valid
whether the TEG is stored
whether the secret code is valid
Other functions include:
Querying number and ID of last TEG used.
Querying reading of all enabled keys.
Querying number of enabled and deactivated keys.
Manual key storing procedures by means of later acquisitions (quality of the transponder must be checked
after each acquisition).
Acknowledging presence of a transponder in the antenna and establishing whether it is valid or not.
Querying the current system state to establish whether:
the last TEG used is enabled and recognised
o
the immobiliser is clear
o
the ID of the last TEG used is present in the enabled key table
o
the ID of the last TEG used is present in the deactivated key table.
o
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ALFA 159 TRAINING MATERIAL
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