Removing and Installing Wiring Harness In Transmission
Removing and installing wiring harness in transmissionInformation about wiring harness
Preliminary work for wiring harness
1. Remove ATF filter.
Removing wiring harness in transmission
Overview of wiring harness
Plug installation
Note: The adaptation values of the Tiptronic control unit must be reset using the Porsche System Tester when replacing/renewing the wiring harness.
1. Remove the fastening screw from both connectors -arrow-.
Solenoid valves
2. Pull off the plugs -arrows- on the solenoid valves -8-12-.
3. Pull off cable plug -1,5,13-.
Removing wiring harness
4. Remove wire set for solenoid valves through opening in the housing -arrow-.
Cable plug for input shaft inductive pickup
5. Pull off plug -arrow- for input shaft inductive pickup -6-.
6. Pull off the cable plug from the oil pressure switches -4,3-.
ATF temperature sensor
7. Unscrew fastening screw -arrow- for ATF temperature sensor -7- in overview and remove sensor.
Cable plug for output shaft inductive pickup
8. Pull off cable plug -2- for output shaft speed inductive pickup -arrow-.
Removing wiring harness
9. Remove wire set for sensors through opening in the housing -arrow-.
Fastening screws for control unit
10. Remove electro hydraulic control unit. To do this, unscrew fastening screws -arrows- and take out the control unit.
Output shaft inductive pickup
11. Remove output shaft speed inductive pickup. To do this, unscrew fastening screw -arrow-.
Installing wiring harness in transmission
Overview of wiring harness
Output shaft inductive pickup
Note: The adaptation values of the Tiptronic control unit must be reset using the Porsche System Tester when replacing/renewing the wiring harness.
1. Install output shaft speed inductive pickup. To do this, screw in fastening screw -arrow-. Tightening torque 7.5 ft. lbs.
Fastening screws for control unit
Note: Screws which are tightened with a torque angle must be replaced with new ones.
2. Install electro hydraulic control unit and screw in new fastening screws -arrows-. Initial Tightening 6 ft. lbs. Final tightening 90 °
Cable plug for output shaft inductive pickup
3. Plug in cable plug -2- for output shaft speed inductive pickup. -arrow-
4. Install wire set for sensors through opening in the housing.
ATF temperature sensor
5. Insert ATF temperature sensor-7- and screw in fastening screw -arrow-. Tightening torque 7.5 ft. lbs.
Cable plug for input shaft inductive pickup
6. Plug in cable plug for oil pressure switch-3,4- and inductive pickup for input shaft-6--arrow-.
7. Install wire set for solenoid valves through opening in the housing.
8. Push in the cable plug for the solenoid valves -1,5,8-13-.
Plug installation
9. Screw in the fastening screw from both plugs -arrow-. Tightening torque 7.5 ft. lbs.
Subsequent work
Reworking wiring harness
1. Install ATF filter.
Oil inspection plug and oil drain plug
2. Unscrew ATF control screw -A- and fill in ATF until a constant discharge is visible at the lifting tube.
3. Screw in ATF control screw with a new sealing ring. Tightening torque 52 ft. lbs.
4. Check and if necessary, top up the ATF.