Passat L4-1984cc 2.0L DOHC (1991)
Data Link Connector: Description and Operation
Diagnostic Connector Location
The diagnostic connector, which is located under the trim panel at the center console, serves as the interface between the CIS-E Motronic control unit
and the diagnostic equipment used for retrieving fault code information.
Fault Code At The Diagnostic Connector
Fault codes may be retrieved with a "LED" test lamp, if the vehicle has a blue diagnostic connector or a Check Engine (MIL) Lamp.
VW Special Tool VAG 1551
If available, fault codes may be retrieved with the VAG 1551 tester.
