Wiring diagram for automatic air conditioning (AAC) control unit - PE83.40-P-2101-97FAA
WARNING: This page is about a different car, the 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Color code key | 56L |
| A9 | Refrigerant compressor | 28L |
| A9 | Refrigerant compressor | 33L |
| A9/7 | Refrigerant compressor with magnetic clutch | 35L |
| B10/4 | Interior temperature sensor | 46L |
| B12 | Refrigerant pressure sensor | 36L |
| B82 | Interior humidity/temperature sensor | 23L |
| CAN B | Interior CAN | 49K |
| E10/1 | Left center air outlet symbol illumination | 38L |
| E10/1x1 | Center vent symbol illumination electrical connector | 37J |
| E10/2 | Left front side air outlet symbol illumination | 40L |
| E10/3 | Right front side air outlet symbol illumination | 41L |
| E10/4 | Right center air outlet symbol illumination | 39L |
| E10/5 | Rear air outlet symbol illumination | 42L |
| E10/5x1 | Rear vent symbol illumination electrical connector | 42J |
| N10/1 | Front SAM control unit with fuse and relay module | 4L |
| N10/1 | Front SAM control unit with fuse and relay module | 12L |
| N10/1f12 | Fuse 12 | 1K |
| N22/7 | Automatic air conditioning control and operating unit | 4A |
| N22/7 | Automatic air conditioning control and operating unit | 12A |
| N22/7 | Automatic air conditioning control and operating unit | 20A |
| N22/7 | Automatic air conditioning control and operating unit | 28A |
| N22/7 | Automatic air conditioning control and operating unit | 36A |
| N22/7 | Automatic air conditioning control and operating unit | 44A |
| N22/7s1 | Rear window heater button | 3A |
| N22/7s2 | Air recirculation mode button | 8A |
| N70/3 | Overhead control panel electronics | 19L |
| N70/3b1 | Interior temperature sensor with integrated fan | 19L |
| U1018 | Valid for gasoline engine 276 | 32E |
| U111 | Valid for overhead control panel without CAN | 18F |
| U12 | Valid for left-hand drive vehicles | 4C |
| U12 | Valid for left-hand drive vehicles | 7D |
| U12 | Valid for left-hand drive vehicles | 43J |
| U13 | Valid for right-hand drive vehicles | 4C |
| U13 | Valid for right-hand drive vehicles | 7D |
| U13 | Valid for right-hand drive vehicles | 43J |
| U152 | Valid for gasoline engine 156 | 26E |
| U157 | Valid for combustion engine 272 DE | 30E |
| U169 | Valid for gasoline engine 271 DE | 30F |
| U328 | Valid for air outlet symbol illumination | 37D |
| U486 | Valid for refrigerant compressor | 32H |
| U487 | Valid for refrigerant compressor with magnetic clutch | 34H |
| U617 | Interior humidity/temperature sensor | 13H |
| U617 | Interior humidity/temperature sensor | 13H |
| U617 | Interior humidity/temperature sensor | 13H |
| U739 | Valid for gasoline engine 271 continuous fuel injection system (electronic) | 30E |
| U74 | Valid for diesel engines | 7D |
| U74 | Valid for diesel engines | 7D |
| U740 | Valid for diesel engine 646 | 28E |
| U75 | Valid for gasoline engines | 7E |
| U819 | Valid for gasoline engine 272 | 30E |
| U880 | Valid for diesel engine 642 | 24E |
| U948 | Valid for diesel engine 651 | 30F |
| U948 | Valid for diesel engine 651 | 32E |
| W15/5 | Left front footwell ground point | 5E |
| W15/5 | Left front footwell ground point | 44L |
| W15/7 | Right front footwell ground point | 5E |
| W15/7 | Right front footwell ground point | 44L |
| W16/3 | Left major assembly compartment ground point | 7E |
| W16/3 | Left major assembly compartment ground point | 7E |
| W16/5 | Left major assembly compartment electronics ground point | 7E |
| X15/12 | Vehicle interior/cockpit temperature sensor electrical connector | 45H |
| X18/35 | Instrument panel and vehicle floor electrical connector | 42H |
| X226 | Electrical connector / fogging sensor | 22H |
| X26 | Interior and engine wiring harness electrical connector | 24H |
| X26 | Interior and engine wiring harness electrical connector | 26H |
| X26 | Interior and engine wiring harness electrical connector | 28H |
| X26 | Interior and engine wiring harness electrical connector | 33H |
| X30/32 | Left vehicle floor interior CAN voltage distributor electrical connector | 49L |
| Z50/1 | Circuit 58d instrument panel connector sleeve | 5G |
| Z50/1 | Circuit 58d instrument panel connector sleeve | 41G |
| Z50/3 | Circuit 31 instrument panel connector sleeve | 39E |
| Z6/85 | Sensor ground connector sleeve | 3G |
| Z6/85 | Sensor ground connector sleeve | 46E |
| Z7/21 | Air conditioning circuit 30 connector sleeve | 2G |
| Z7/21 | Air conditioning circuit 30 connector sleeve | 6G |
| Z7/21 | Air conditioning circuit 30 connector sleeve | 12E |