Howo Truck Electric Diagram - Rocker Switch & Horn Button

| S48 | Horn button on steering wheel | 
| S49 | Horn button on steering wheel | 
| S6/6 | PTO switch | 
| S6/7 | PTO neutral switch | 
| S6/8 | Wheel differential switch | 
| S6/9 | Axle differential switch | 
| S6/10 | All-wheel drive switch | 
| S6/11 | Work light switch | 
| S6/19 | Lifting axle lift switch | 
| X10 | Rocker switch lighting positive and negative splitter | 
| X11 | Rocker switch lighting positive and negative splitter | 
| T1 | Lifting axle mode conversion connector | 
| S6/38 | Brake cooling switch | 
| Y8 | Brake cooling solenoid valve | 
| S6/43 | Headlight work light switch | 
| K4 | Headlight working light relay | 
| K12 | Work light relay | 
| E23 | Working lamp |