1 | Fault code | |
2 | Fault storage Activation of malfunction indicator lamp for engine diagnosis (EURO3/4) or CHECK ENGINE (MIL) | after the end of the test period and faults after two successive driving cycles with faults |
3 | Frequency of the test | continuous |
4 | Checked signal or status | - supply voltage for RPM sensors - speed signal n2 - speed signal n3 |
5 | Fault setting conditions Supply voltage for RPM sensors Lower limit Upper limit Speed signals n2, n3 Test duration |
< 4.8 V > 7.2 V Signals detected and plausible approx. 1 s |
6 | Test prerequisites for speed signal n2 Test prerequisites for speed signal n3 | - engine speed > 450 rpm - rear right wheel speed > 250 rpm - rear left wheel speed > 250 rpm - 3rd or 4th gear detected - output shaft rotational speed > 180 rpm (> 20 km/h) - no shift operation |
7 | Test sequence | Speed signals must be detected starting from a certain engine and wheel rotational speed. The 3rd or 4th gear must also be engaged for speed signal n3. |
8 | | Faults are detected by the ETC control module and sent via the CAN data bus to the ME-SFI control module. The faults are stored and the "CHECK ENGINE" malfunction indicator lamp (MIL) is activated by the ME-SFI control module. Also read out ETC diagnostic trouble code memory, fault codes 11, 12, 13. |