Speed Signal Front Right/Left; Absjtc Control Module Connector - Porsche Boxster Technical Manual

Boxster Tiptronic diagnosis 37
8
Fault, DTC Possible causes, elimination, notes
Test point 8
Speed signal Fault effect:
front right/left No manual program.
Signal implausible
U
h
"
ft
" "
t t d d
"
b
k
"
ps I Ing IS no preven e urlng ra Ing.
DTCs 55, 62 No downshifting during braking.
Substitute value for transverse acceleration.
Note
The wheel speeds can be checked with Porsche System Tester 2 (Ac-
tual values/Speed signal (FR)/(Fl)).
8 To do this, raise the vehicle and spin the right or left front wheel by
hand.
1. Check wheel speed with the Tester.
2. Read out fault memory of the ABS/fC control module and remedy
the fault according to the ABS test plan.
3. Check wiring from the Tiptronic control module connector pin 38 (or
39) to the ABS/fC control module connector pin 25 (or 26) for open
circuit, short to ground and short to B+.
8
26
19
ABSjTC control module connector 540 .96
8
37 01 Diagnosis/troubleshooting, Tiptronic 37 -D 25
Printed in Germany -3, 1996 98637D21
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