P0717 (Porsche Codes 91 and 92)

P0717 (Porsche codes 91 and 92)

Stall speed, transmission input - signal implausible Gear monitoring, transmission input speed - signal implausible

Function
The transmission input speed/engine speed ratio or transmission input speed/transmission output speed ratio is monitored.
The "reduced driving programme" is activated in the event of an incorrect signal.

Diagnosis conditions
- Selector lever position "D", gear 2, 3, 4 or 5
- ATF temperature > 60 °C
- Engine speed > 3104 rpm

P0717:

Wiring diagram







Transmission input speed sensor







Transmission speed sensor

Diagnosis procedure

NOTE: If the faults described in the diagnosis procedure were remedied and no other faults are stored, there could be a fault in the torque converter or in the transmission.


Porsche code 91







Porsche code 92

Part 1:

Part 2:

1 Check sensor for transmission input speed with wiring.

1. Remove Tiptronic control module connector.
2. Connect ohmmeter to Tiptronic control module connector pin 16 and pin 44.

Display: 230... 300 Ohms


2 Check sensor for transmission speed with wiring.

1. Remove Tiptronic control module connector.
2. Connect ohmmeter to Tiptronic control module connector pin 14 and pin 42.

Display: 0.80... 1.2 kOhms