Legend of wiring diagram of AIRmatic control unit - PE32.22-P-2101-60SAA
Model 221.0/1 except CODE (487) Active Body Control (ABC) control unit N51
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 40L |
| A9/1 | AIRMATIC compressor unit | 6L |
| A9/1m1 | Air compressor motor | 5L |
| A9/1y1 | AIRMATIC pressure reduction valve | 6L |
| B22/3 | Rear axle level sensor | 29L |
| B22/8 | Left front level sensor | 14L |
| B22/9 | Right front level sensor | 17L |
| B24/3 | Left front body lateral acceleration sensor | 11L |
| B24/4 | Right front body lateral acceleration sensor | 13L |
| B24/6 | Right rear body lateral acceleration sensor | 27L |
| N10/1 | Front SAM control unit with fuse and relay module | 3L |
| N51 | AIRMATIC with ADS control unit | 4A |
| N51 | AIRMATIC with ADS control unit | 12A |
| N51 | AIRMATIC with ADS control unit | 19A |
| N51 | AIRMATIC with ADS control unit | 28A |
| U12 | Valid for left-hand drive vehicles | 4D |
| U13 | Valid for right-hand drive vehicles | 4D |
| U152 | Valid for engine 156 | 26G |
| W2 | Ground (right front, at lamp unit) | 5H |
| W15/1 | Ground (right footwell) | 4E |
| W34/1 | Ground (electronics - left footwell) | 4F |
| X30/30 | Chassis CAN/FFS [RBA] voltage distributor connector | 31L |
| X62/6 | Right front axle multiple circuit junction connector, major assembly compartment | 20H |
| X62/7 | Left front axle multiple circuit junction connector, major assembly compartment | 18H |
| X62/32 | Left rear axle multiple circuit junction connector | 22H |
| X62/33 | Right rear axle multiple circuit junction connector | 24H |
| Y36/6 | Level control valve unit | 9L |
| Y36/6b1 | AIRMATIC pressure sensor | 10L |
| Y36/6y1 | Left front level control valve | 7K |
| Y36/6y2 | Right front level control valve | 7H |
| Y36/6y3 | Left rear level control valve | 7K |
| Y36/6y4 | Right rear level control valve | 7J |
| Y36/6y5 | AIRMATIC central reservoir charge valve | 7J |
| Y51 | Left front axle damping valve unit | 18L |
| Y51y1 | Solenoid valve 1, front left | 18L |
| Y51y2 | Solenoid valve 2, left front | 19L |
| Y52 | Right front axle damping valve unit | 20L |
| Y52y1 | Solenoid valve 1, front right | 20L |
| Y52y2 | Solenoid valve 2, right front | 21L |
| Y53 | Left rear axle damping valve unit | 22L |
| Y53y1 | Solenoid valve 1, rear left | 22L |
| Y53y2 | Solenoid valve 2, rear left | 23L |
| Y54 | Right rear axle damping valve unit | 24L |
| Y54y1 | Solenoid valve 1, rear right | 24L |
| Y54y2 | Solenoid valve 2, right rear | 25L |