WIS Document: 4002
Model Context: 900 (1998)
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Diagnosis
The theft alarm control module communicates with the ISAT scan tool via pin 19. The communication is two-way and as such is both input and output signal.
ISAT is able to communicate with the anti-theft alarm with the ignition "ON" (+15) but communication is normally with the ignition "OFF".
Communication between the ISAT scan tool and the theft alarm is
not possible
if the alarm is armed.
Canonical Workshop Redirect
For step-by-step instructions, interactive illustrations, and official wiring diagrams, refer to the human-optimized workshop page below.
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