DME 7.8
P0717
91, Stall Speed, Transmission Input
The ratio of transmission input speed to engine speed is monitored
Diagnosis conditions
- ATF level OK
- ATF temperature > 60 degree C
- Selector lever position 'D', 2nd, 3rd, 4th or 5th gear
- Gear engagement completed
- Output shaft speed < 641 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 input speed (turbine sensor) is faulty
- Torque converter clutch is slipping
- Torque converter is faulty
- Tiptronic control module is faulty
Affected pins
Pin 16, pin 44 and pin 23
Diagnosis/troubleshooting
DANGER: Danger of scalding by not ATF.
Hot ATF can cause burns if it comes into contact with the skin or clothing.
- Drain ATF only when cold.
- Wear suitable protective clothing.
CAUTION:
Risk of damage to the transmission input speed sensor (turbine sensor) if the hydraulic control unit is laid on its back when removed.
- When the hydraulic control unit is removed, place it only with its bottom side on a suitable surface.
Work Instruction 1 - 4:
Work Instruction 5 - 9:
Work Instruction 10 - 15:
92, Gear Monitoring - Transmission Input Speed
The ratio of transmission input speed to transmission output speed is monitored
Diagnosis conditions
- ATE level OK
- ATF temperature > 60 degree 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: Danger of scalding by hot ATF.
Hot ATF can cause burns if it comes into contact with the skin or clothing.
- Drain ATF only when cold.
- Wear suitable protective clothing.
CAUTION:
Risk of damage to the transmission input-speed sensor (turbine sensor) if the hydraulic control unit is laid on its back when removed.
- When the hydraulic control unit is removed, place it only with its bottom side on a suitable surface.
Work Instruction 1 - 6:
Work Instruction 7 - 11:
Work Instruction 12 - 16:
Work Instruction 17 - 21:
Work Instruction 22 - 26:
