Stall Speed, Transmission Input - Porsche Boxster Technical Manual

Boxster Tiptronic diagnosis 37
8
Fault, DTC Possible causes, elimination, notes
4. Test sender on transmission socket pin 10 and pin 1 with an
ohmmeter.
Nominal value: 0.80.., 1.2 kg
Note
The ATF pan must be removed before the sender can be replaced.
5. If items 1 ,., 4 are OK and no other faults are stored, there is a
mechanical/hydraulic fault in the transmission (e,g, ATF level not OK,
slipping clutches or brakes).
8
Test point 15
Stall speed, Fault effect:
transmission input Reduced driving program.
Signal implausible
DTC 91 Note
The ratio of transmission input speed/engine speed is monitored.
1. Test sender for the transmission input speed on Tiptronic control mo-
dule connector pin 16 and pin 44 with an ohmmeter.
8 Nominal value: 230 ...300 g
2. Check wiring from control module pin 16 (or 44) to the 16-pole trans-
mission connector pin 5 (or 6) for open circuit, short to ground and
short to B+.
8
37 01 Diagnosis/troubleshooting, Tiptronic 37 -D 31
Printed in Germany -3, 1996 98637D21
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