1 | Fault code | |
2 | Fault memory and actuation of CHECK ENGINE (MIL) | After two consecutive journeys with fault |
3 | Monitoring time and frequency of testing | Continuous |
4 | Checked signal or status | – Supply voltage, speed sensors – Speed signal n2 – Speed signal n3 |
5 | Supply voltage, speed sensors Lower limit value Upper limit value Speed signals n2, n3 Duration of test |
< 4.8 V > 7.2 V Signals recognized and plausible < 1 s |
6 | Test conditions Speed signal n2 Test conditions Speed signal n3 | – Engine speed > 450 rpm – Rear right wheel speed > 250 rpm – Rear left wheel speed > 250 rpm – 3rd or 4th gear recognized – Output shaft speed > 150 rpm (> 20 km/h) – No shift process |
7 | Test sequence | The speed signals must be recognized as of a particular engine speed and wheel speed. 3rd and 4th gear must also be shifted for the speed signal n3. |
8 | | Faults are recognized by the ETC control module and conveyed to the engine control module (ME-SFI) via the CAN data bus. The engine control module (ME-SFI) carries out fault memory and actuation of CHECK ENGINE (MIL). Also read out the ETC fault memory, fault codes 11, 12, 13. |