Volkswagen Golf 1999 Service Manual page 3791

Climatronic
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On Board Diagnostic (OBD)
The Climatronic control module -J255- is
controlled by an internal microprocessor
with On Board Diagnostic (OBD) capability.
If malfunctions, short or open circuits occur
on monitored components, Diagnostic
Trouble Codes (DTC) are stored in
memory.
Perform OBD program using VAG 1551
Scan Tool or VAS 5051 Vehicle Diagnostic
Testing and Information System in operating
mode "Guided Fault Finding".
Performing OBD program on models
through m.y. 2001
Performing OBD program on models from
m.y. 2002 Page 01-5
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13/2/2005