911 Carrera 4 Cabriolet AWD F6-3600cc 3.6L SOHC (1990)
Seat Heater Relay: Technical Service Bulletins
Window Lift Relay - Installed With Seat Heating
Page 1 of 1
February 2, 1990
Subject:
Seat Heating/Window Lift Relay
Model
Group
911 Speedster
7
Part Identifier
Number
7428
9001
ATTENTION: Service Manager/Service Technician
A window lift relay is installed in 911 Speedsters with seat heating (M139/M340) even though the Speedster is equipped with manually operated window
regulators. Seat heating wiring is identical with the wiring of the 911 Carrera. (Power supply from window lift relay).
Refer to Wiring Diagram 911 Carrera, Model 89, Sheets 2 and 3.
