With P0712
P172F
Diagnosis information - PDK
Transmission oil temperature sensor, signal implausible
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
Possible fault causes
- Line between temperature sensor and PDK control unit faulty
- Temperature sensor faulty
- PDK control unit faulty
Fault setting conditions
- Measured sensor voltage < 1.18 V
Fault effects
- An internal temperature substitute value is used
- Transmission limp-home indication in instrument cluster
Setpoint Definitions
P172F
Setpoint definitions
NOTE: The specified values and value ranges correspond to the OK state in each case.
Line test setpoints
Short circuit to B+:
- Setpoint voltage - 0.5 V --> + 0.5 V
Short circuit to ground:
- Setpoint resistance > 0.9 MOhm
Open circuit:
- Setpoint resistance < 2 Ohm
NOTE: The specified values apply only at an ambient temperature of approx. 20 °C (68 °F) (room temperature).
Temperature sensor setpoints
Temperature [°C] Resistance [Ohm]
0 > 800 --> < 820
4 > 830 --> < 850
25 > 980 --> < 1000
37 > 1070 --> < 1090
Transmission Input Shaft Speed Sensor, Clutch 1, Short Circuit To B+
P173B
Diagnosis information - PDK
Transmission input shaft speed sensor, clutch 1, short circuit to B+
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
- Ignition on
- The following fault is not detected: P1824
- The following fault is not detected: P1825
Possible fault causes
- Line between speed sensor 1 and PDK control unit faulty
2010 Porsche Cayman S (987) F6-3.4L Page 204
- Speed sensor for clutch 1 faulty
- PDK control unit faulty
Fault setting conditions
- Sensor voltage > threshold value (> 4.5 V)
Fault effects
- Electrical substitute value
- No gear preselection
- No R gear
- Transmission limp-home indication in instrument cluster control unit
Transmission Input Shaft Speed Sensor, Clutch 1, Short Circuit To Ground Or Open Circuit
P172F
Diagnosis information - PDK
Transmission oil temperature sensor, signal implausible
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
Possible fault causes
- Line between temperature sensor and PDK control unit faulty
- Temperature sensor faulty
- PDK control unit faulty
Fault setting conditions
- Measured sensor voltage < 1.18 V
Fault effects
- An internal temperature substitute value is used
- Transmission limp-home indication in instrument cluster
Setpoint Definitions
P172F
Setpoint definitions
NOTE: The specified values and value ranges correspond to the OK state in each case.
Line test setpoints
Short circuit to B+:
- Setpoint voltage - 0.5 V --> + 0.5 V
Short circuit to ground:
- Setpoint resistance > 0.9 MOhm
Open circuit:
- Setpoint resistance < 2 Ohm
NOTE: The specified values apply only at an ambient temperature of approx. 20 °C (68 °F) (room temperature).
Temperature sensor setpoints
Temperature [°C] Resistance [Ohm]
0 > 800 --> < 820
4 > 830 --> < 850
25 > 980 --> < 1000
37 > 1070 --> < 1090
Transmission Input Shaft Speed Sensor, Clutch 1, Short Circuit To B+
P173B
Diagnosis information - PDK
Transmission input shaft speed sensor, clutch 1, short circuit to B+
Diagnostic conditions
The control unit initially tests internal function sequences when the ignition is switched on (terminal 15). If they are OK, all diagnosable outputs are
then tested and any faults are stored.
- Ignition on
- The following fault is not detected: P1824
- The following fault is not detected: P1825
Possible fault causes
- Line between speed sensor 1 and PDK control unit faulty
2010 Porsche Cayman S (987) F6-3.4L Page 204
- Speed sensor for clutch 1 faulty
- PDK control unit faulty
Fault setting conditions
- Sensor voltage > threshold value (> 4.5 V)
Fault effects
- Electrical substitute value
- No gear preselection
- No R gear
- Transmission limp-home indication in instrument cluster control unit
Transmission Input Shaft Speed Sensor, Clutch 1, Short Circuit To Ground Or Open Circuit