Engine Temperature Sensor Signal Implausible

P0115 - ENGINE TEMPERATURE SIGNAL IMPLAUSIBLE

Diagnosis conditions
- A temperature model is formed. If the measured temperature deviates too much from the calculated temperature, a fault is detected.

NOTE: A thermostat which is constantly open can cause the fault P0115.

Possible fault cause
- Thermostat (permanently open)
- Open coolant shutoff valve (only Tiptronic vehicles)
- Wiring
- Temperature sensor faulty
- DME control module faulty

Affected terminals
- Terminal III/22 and III/17

Resistance values
0 °C 5.0 - 7.0 Kohm
20 °C 2.0 - 3.0 Kohm
60 °C 0.4 - 0.8 Kohm

Diagnosis/Troubleshooting

Steps 1 - 9: