Legend of electrical function schematic for common rail diesel injection (CDI) Exhaust gas cleaning - PE14.00-P-2050-60MAB
MODEL 164.1 with ENGINE 642.8 with CODE (U42) BlueTEC diesel exhaust gas cleaning (SCR) with AdBlue/DEF with CODE (494) USA version as of model year. 09/AEJ 08 model refinement package
MODEL 164.8 with ENGINE 642.8 with CODE (U42) BlueTEC diesel exhaust gas cleaning (SCR) with AdBlue/DEF with CODE (494) USA version as of model year. 09/AEJ 08
| Code | Designation | Coordinates |
|---|---|---|
| A1 | Instrument cluster | 12J |
| A1e26 | "CHECK ENGINE" MIL | 14J |
| A1p13 | Multifunction display | 14H |
| A103/1b1 | AdBlue® tank temperature sensor | 17C |
| A103/1b2 | Fill level sensor (full) | 19B |
| A103/1b3 | Fill level sensor (reserve) | 20C |
| A103/1b4 | Fill level sensor (empty) | 22D |
| A103/1r1 | AdBlue® tank heating element | 16F |
| A103/1r2 | AdBlue® pressure line heating element | 16G |
| A103/2b1 | AdBlue® pressure sensor | 22E |
| A103/2m1 | AdBlue® delivery pump | 17H |
| A103/2r1 | AdBlue® delivery module heating element | 19H |
| A103/2y1 | AdBlue® reversing valve | 18H |
| B16/15 | Temperature sensor upstream of SCR catalytic converter | 4D |
| B19/7 | Temperature sensor upstream of CAT | 7C |
| B19/9 | Temperature sensor upstream of diesel particulate filter | 10J |
| B19/11 | Temperature sensor upstream of turbocharger | 8C |
| B28/8 | Pressure differential sensor (DPF) | 6J |
| G3/2 | O2 sensor upstream of CAT | 8J |
| K27/7 | AdBlue® supply relay | 21H |
| M55 | Intake port shutoff motor | 4A |
| N3/9 | CDI control unit | 8D |
| N37/7 | NOx control unit downstream of diesel particulate filter | 13B |
| N37/7b1 | NOx sensor downstream of diesel particulate filter | 11B |
| N37/8 | NOx control unit downstream of SCR catalytic converter | 16B |
| N37/8b1 | NOx sensor downstream of SCR catalytic converter | 14B |
| N118/5 | AdBlue® control unit | 19E |
| Y27/9 | Left exhaust gas recirculation positioner | 5K |
| Y76 | Fuel injectors | 3H |
| Y129 | AdBlue® metering valve | 20H |
| CAN C | Engine compartment CAN | 12F |
| CAN I | Drive train sensor CAN | 12E |
| CAN I | Drive train sensor CAN | 17E |
| 1 | CHECK ENGINE indicator lamp, actuation | 12H |
| 1 | CHECK ENGINE indicator lamp, actuation | 14J |
| 2 | Multifunction display, actuation | 13H |
| 4 | Temperature sensor upstream of SCR catalytic converter, signal | 6E |
| 5 | Temperature sensor upstream of diesel particulate filter, signal | 9G |
| 6 | Differential pressure sensor (DPF), signal | 7G |
| 7 | O2 sensor, signal | 8G |
| 8 | Temperature sensor upstream of turbocharger, signal | 9D |
| 9 | Temperature sensor upstream of CAT, signal | 8D |
| 10 | Exhaust gas recirculation positioner, actuation | 5J |
| 11 | Intake port shutoff motor, actuation | 6C |
| 12 | Fuel injectors, actuation | 4H |
| 13 | NOx sensor, signal | 12A |
| 13 | NOx sensor, signal | 16A |
| 14 | NOx sensor heater, actuation | 12B |
| 14 | NOx sensor heater, actuation | 13B |
| 14 | NOx sensor heater, actuation | 15B |
| 14 | NOx sensor heater, actuation | 17B |
| 15 | AdBlue® delivery module heating element, actuation | 19H |
| 16 | AdBlue® pressure sensor, signal | 21F |
| 17 | AdBlue® tank heating element, actuation | 17F |
| 18 | AdBlue® delivery pump, actuation | 17G |
| 19 | AdBlue® reversing valve, actuation | 18H |
| 20 | AdBlue® supply relay, actuation | 21H |
| 21 | Circuit 30 AdBlue® supply relay, signal | 21F |
| 22 | AdBlue® pressure line heating element, actuation | 17G |
| 23 | Fill level sensor (full), signal | 19D |
| 24 | Fill level sensor (reserve), signal | 20D |
| 25 | Fill level sensor (empty), signal | 21E |
| 26 | AdBlue® tank temperature sensor, signal | 19D |
| 27 | AdBlue® metering valve, actuation | 20H |
| 28 | O2 sensor heater, actuation | 9J |
| 29 | AdBlue® fill level, message | 10E |
| 29 | AdBlue® fill level, message | 12H |
| 30 | AdBlue® injection, request | 18E |
| 31 | AdBlue® injection, message | 10E |