P1175

P1175

Intake air temperature sensor-signal implausible (too low)

NOTE: If a fault is detected, a substitute value of 60 °C is used.

Diagnostic conditions
- Previous engine switch-off temperature > 40 °C
- Engine temperature has cooled off by > 20K before restart
- Engine starting temperature -35 °C ... 70 °C
- Time after engine starts > 2 s
- No fault detected for ambient temperature sensor (via CAN)

Possible fault causes
- Intake air temperature sensor faulty (in the hot-film mass air flow meter)