Part 3
92, Gear monitoring - transmission input speed
The ratio of transmission input speed to transmission output speed is monitored
Diagnosis conditions
- ATF level OK
- ATF temperature > 60锟斤拷 C
- Selector lever position 'D', 2nd, 3rd, 4th or 5th gear
- Gear engagement completed
- Engine speed > 1408 rpm
Possible fault cause
- ATF level too low or too high
- Short circuit to ground/B+/mutual short circuit or open circuit in the circuit to the control module
- Faulty shielding of signal lines
- Sensor for transmission output speed (output-shaft speed sensor) is faulty
- Sensor for transmission input speed (turbine sensor) is faulty
- Tiptronic control module is faulty
Affected pins
Pin 14, pin 42 and pin 15
Pin 16, pin 44 and pin 23
Diagnosis/troubleshooting
Danger of scalding by hot ATF.