1 | Fault code | |
2 | Fault storage and activation of CHECK ENGINE (MIL) malfunction indicator lamp | Fault storage following two successive journeys with faults. No initialization of the CHECK ENGINE malfunction indicator lamp (MIL). |
3 | Checking frequency | continuously |
4 | Checked signal or status | A Front left vehicle speed signal B Rear left vehicle speed signal |
5 | Limit value Checking duration Plausibility Checking duration | Vehicle speed signals (digital signals from the ESP control module) must be detected as of approx. 12 km/h < 5 s The following applies as of approx. 40 km/h: Front speed minus rear speed < 30 km/h < 30 s |
6 | Check prerequisites | - Engine speed approx. 2500-4500 rpm - Load > 40 % - Drive D |
7 | | The wheel speeds are detected and evaluated by the ESP control module. The ME-SFI control module contains a processed, digital vehicle speed signal. Following fault identification (e.g. by driving on a test rig), read the ME-SFI and ESP diagnostic fault code memories. |