Legend of electrical function schematic for secondary air injection - PE14.30-P-2050-60FAB
ENGINE 272 in MODEL 204 up to model year 08/AEJ 07
| Code | Designation | Coordinates |
| 1 | Secondary air injection relay, actuation | |
| B11/4 | Coolant temperature sensor | 4C |
| B70 | Crankshaft Hall sensor | 7F |
| M16/6 | Throttle valve actuator | 3J |
| M33 | Electric air pump | 4K |
| N3/10 | ME-SFI [ME] control unit | 4E |
| N10/1kP | Secondary air injection relay | 4J |
| Y32 | Air pump switchover valve | 1E |