Legend of wiring diagram for stationary heater (STH) control unit - PE83.70-P-2101-60SAA
Model 221.0/1 with CODE (228) Stationary heater control unit A6
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 23L |
| A2/49a1 | Telephone antenna | 12L |
| A2/53 | Telephone/portable CTEL/STH radio remote control antenna splitter | 10L |
| A6 | STH or HB heater unit | 4A |
| A6 | STH or HB heater unit | 12A |
| A6 | STH or HB heater unit | 20A |
| A6/1 | STH radio remote control receiver | 5L |
| A6b1 | Temperature sensor | 23A |
| A6f1 | Temperature fuse | 21A |
| A6m2 | Combustion air blower | 23C |
| A6n1 | STH or HB control unit | 9A |
| A6r4 | Glow pin unit flame monitor | 21C |
| A6r5 | Fuel preheating | 19A |
| F1/6 | Right instrument panel fuse box | 2L |
| F1/6f90 | Fuse 90 | 1K |
| F1/6f91 | Fuse 91 | 2K |
| U801 | Valid for UHI (Universal Portable CTEL Interface) | 9G |
| W15/1 | Ground (right footwell) | 3E |
| W15/1 | Ground (right footwell) | 5G |
| W15/1 | Ground (right footwell) | 19E |
| X1/21 | STH remote control antenna module connector | 8K |
| X30/33 | Right interior CAN/FFS [RBA] voltage distributor connector | 15L |
| X62/33 | Right rear axle multiple circuit junction connector | 19H |
| Y16 | STH switchover valve | 18L |
| Y23 | STH or AUH fuel metering pump | 20L |