996 Carrera Group 0 Part 1 Diagnosis / PAGE 42
37 Tiptronic diagnosis 911 Carrera (996) · Fault, DTC
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37 Tiptronic diagnosis 911 Carrera (996)
Fault, DTC Possible causes, elimination, notes
Test point 3
Faultycontrol module Faulteffect:
(EEPROM) Reduceddrivingprogram.
DTC 49
Replacecontrol module.
Test point 4
Faultycontrol module Faulteffect:
(checksum) Reduceddrivingprogram.
DTC 42
Replacecontrol module.
Test point 5
Solenoid valves I, 2, 3 Faulteffect:
Open circuiVshort to Reduceddrivingprogram.
ground,
short to B+ Note
DTC's 31,32,33
The functions of the solenoidvalves (SV's)can be checked with
the Porsche System Tester 2 (Drive links/ Solenoid valves I, 2, 3).
The activation pulses of the valves can be heard as a clicking sound
near the transmission.
1. Checkfunctionof the SV'swiththe tester.
2. Check SV with wiring. To do this, connect an ohmmeter
to the control module connector and measure the resistance:
SVI = Pin 52 and pin 30
SV2 = Pin 52 and pin 33
SV3 = Pin 52 and pin 32
Nominalvalue: 24 36.Q
37 -D 22 37 01 Diagnosis/Troubleshooting, Tiptronic
99637D21 Printed in Germany -8, 1998
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