Howo Truck Diagram - Electric Box, Intake Heating, Instrument Cluster

| A7 | Instrument cluster |
| K18 | Backup relay |
| F2 | Insurance for lights/work light switches, etc. |
| F10 | Trailer ABS insurance |
| F50 | Overvoltage alarm device insurance |
| F31 | CBCU-G5 insurance |
| F32 | CBCU-G6 insurance |
| F33 | K18 insurance |
| F35 | Interior lighting, VDR, radio insurance |
| K24 | Preheat relay |
| F200 | 200A heater insurance |
| R7 | Preheater |
| A | Electrical junction box |
| B | Intake duct heating device |
| C | Instrument cluster |