The differential lock circuit is made up of a 2G8990 Solenoid Valve, a 7N8000 Switch, and a 7N5876
Indicator Lamp. When the switch is in the LOCK (OFF) position, the solenoid valve is not activated and
the indicator lamp is OFF. When the switch is in the UNLOCKED (ON) position, the solenoid is activated
and the indicator lamp is ON.
Figure 21. Differential Lock Circuit