Tiptronic diagnosis 911 Carrera (996) · Fault, DTC Possible causes, elimination, notes

Tiptronic diagnosis 911 Carrera (996) Fault, DTC Possible causes, elimination, notes Test point 22 Supply voltage to solenoid Faulteffect: valve/pressure regulator Reduceddriving program. Open circuit/short to ground Note DTC 11 The coils of the solenoid valves (SV)are supplied directly with positive potential on one side and with ground on the other side via an output stage in the control module. 1. Check supply leads of the solenoid valves(pins 52 and 53) for open circuit and short to ground. 2. If the test described in 1 is not OK, check wiring from control module connector pin 52 (or 53) to the 16-poletransmissionconnector pin 12 (or 16) for open circuit and short to ground. 3. Check the transmissionwiring harness at transmission socket pins 16 and 12 for open circuit and short to ground. Test point 23 Terminal 3D, open circuit Faulteffect: Open circuiVshort Faultis onlyenteredin the fault memory. to ground DTC 12 Note The Tiptronic control module is continuouslysupplied with battery voltage via pin 26 (+ 30). 1. Test voltage at control module connector pin 26. If no battery voltage is displayed, check fuses B1 and F6 and the wire from the battery to the control module. 37 -D 38 37 01 DiagnosisjTroubleshooting, Tiptronic 99637D21 Printed in Germany -8, 1998