1 | Fault code | right cylinder bank left cylinder bank |
2 | Fault memory and actuation of CHECK ENGINE (MIL) | After two consecutive journeys with fault |
3 | Frequency of testing | Continuous |
4 | Checked signal or status | Limit values of engine coolant temperature |
5 | Lower limit value Upper limit value Duration of test for each limit value Plausibility | > 50 kΩ (approx. –38 °C) < 50 Ω (approx.+160 °C) < 1 s The temperature increase after a cold start is compared with a stored temperature model (performance map). At least +38°C must be reached after a set time. |
6 | | In the event of a fault the vehicle continues running with a substitute value from the temperature model. If the signal is plausible again, a changeover is made to the signal from the ECT sensor. |