(Electrical Function Diagram For Purging Function - PE47.30-P-2052-97NAF)
ENGINE 157, 276.8, 278 in MODEL 166 up to model year 2016
| Code: | Designation: | Position: |
|---|---|---|
| 1 | Oxygen sensor, signal | 6D |
| 2 | Engine load, signal | 5F |
| 3 | Coolant temperature sensor, signal | 4F |
| 4 | Charge air temperature sensor, signal | 3D |
| 5 | Purging switchover valve, actuation | 3B |
| 6 | Engine speed, signal | 5C |
| 7 | Circuit 87, status | 3F |
| 8 | Purging pressure sensor, signal | 3C |
| B11/4 | Coolant temperature sensor | 4G |
| B17/8 | Charge air temperature sensor | 1D |
| B28/7 | Pressure sensor downstream of throttle valve | 6G |
| B4/4 | Purging pressure sensor | 2B |
| B70 | Crankshaft Hall sensor | 5B |
| F58 | Engine compartment fuse and relay module | 2J |
| F58kN | Circuit 87M relay | 2G |
| G3/3 | Left oxygen sensor upstream of catalytic converter | 7D |
| G3/4 | Right oxygen sensor upstream of catalytic converter | 7E |
| N3/10 | ME-SFI [ME] control unit | 4D |
| U1032 | Valid for engine 278 and 157 | 3D |
| U391 | Valid for gasoline engine 276.8 | 3D |
| Y58/1 | Purge control valve | 3B |