Waveform 6
| Measured terminal | Tumble generator valve LH position signal (E158) No. 59 (+) - Engine ground 3 (E158) No. 63 (-): |
| Tumble generator valve LH motor open (E158) No. 26 (+) - Engine ground 3 (E158) No. 63 (-): | |
| Tumble generator valve LH motor closed (E158) No. 39 (+) - Engine ground 3 (E158) No. 63 (-): | |
| Measuring condition | While engine idling |