911 Carrera 4 Cabriolet AWD F6-3600cc 3.6L SOHC (1990)
Diagnostic Connector - ABS: Technical Service Bulletins
Tools - Coupler to Use With ABS II System Tester
September 7, 1990
Subject:
ABS II System and ABS 55 Pin Coupler
Model
Group
N/A
N/A
Part Identifier
Number
N/A
9005
We now have a coupler to use with the existing ABS II system tester for the 1989 and later 911 Carrera 4 and the 1990 928 S4 and GT. This 55 pin
coupler is used to check the vehicle's ABS braking system and the lateral and longitudinal acceleration sensors. This ABS coupler is part of the
minimum tool requirement. The part number for the coupler is PNA 721 028, and it will be shipped automatically to all Porsche dealerships.
Pictured below are the ABS II system tester and the two couplers.