Porsche 996 TT, Repair Manual

Page: 1770 / 2099

control module using a multimeter. Pin 5 and
pin 9.
3 Perform heat element resistance test for the
backrest and seat area using a multimeter.
Pull the plug off the seat heating control
module and check the resistance on the plug
bracket RE/WT pin 3 and BR pin 9.
Depending on
temperature,
approx 2 © ’ Step
4 Check resistance test on backrest
and seat area heating elements via
the respective connecting plug
(approx. 1 ©) and replace defect
heating element
’. End
4 Seat heating control module ’ replace.
’ End
5 Check fuse in the fuse box for the seat
heating.
’ Step 6 Replace fuse and perform function
test.
’ End
6 Check seat heating switch lines for continuity
using a multimeter.
Replace switch for the seat heating.
’ End
996420, 996421, 996450, 996451, 996430, 996431, 996840, 996841
einordnung
Test plan for the seat heating 1707