Volkswagen Jetta, Golf, GTI 1999, 2000
Electrical Equipment On Board Diagnostic (OBD)
Anti - theft immobilizer On Board Diagnostic (OBD) (Page 01-191)
The immobilizer electronics consist of:
control electronics in instrument cluster
a warning light for anti-theft immobilizer sensor -K117- in instrument cluster
(speedometer display)
a matched engine control module
an induction coil on the ignition lock
matched ignition keys with electronic components (transponder and response reader
memory)
Malfunction recognition and Diagnostic Trouble Code (DTC) display via warning light for
anti-theft immobilizer sensor
An intact immobilizer system is indicated by the warning light for anti-theft immobilizer sensor -
K117- lighting up and going out after approx. 3 seconds when the ignition is switched on.
Warning light flashes or stays lit when the ignition is switched on (indicates a malfunction in
system) if:
the ignition key has been carried out incorrectly.
no transponder (response reader memory) is present in ignition key.