Voltage To Control Module; Terminal 3D, Open Circuit - Porsche Boxster Technical Manual

37 Tiptronic diagnosis Boxster
8
Fault, DTC Possible causes, elimination, notes
Test point 22
Voltage to control module Fault effect:
o
h
Pen circuit; Reduced driving program.
s ort to ground
DTC 11 Note
One side of the solenoid valve (SV) coils is supplied directly with posi-
tive voltage, and the other side is connected to ground via a driver.
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 8
connector pin 52 (or 53) to the 16-pole transmission connector pin
12 (or 16) for open circuit and short to ground.
3. Check the transmission wiring harness at transmission socket pin 16
and pin 12 for open circuit and short to ground.
Test point 23
Terminal 3D, open circuit Fault effect:
Open circuit/short Fault is only entered in the fault memory.
circuit to ground
DTC 12 Note
The Tiptronic control module is continuously supplied with battery volt-
age via pin 26 (+ 30). 8
1. Test voltage at control module connector pin 26.
If no battery positive voltage is displayed, check fuses 81 and F6
and check wire from the battery to the control module.
8
31 -D 38 31 01 Diagnosis/troubleshooting, Tiptronic
98637D21 Printed in Germany -3, 1996