Where is the exhaust brake turned on?

[McJuliette]

Large trucks' exhaust brake switch is usually integrated with the wiper controls; light trucks do not have this equipment. How to use the exhaust brake: It is integrated with the wiper switch. Lift this switch, release the clutch pedal and accelerator pedal, and ensure the transmission is in a gear other than neutral for the exhaust brake to take effect. To deactivate the exhaust brake, simply press the exhaust brake switch again. More details are as follows: 1. Exhaust brakes are widely used in large diesel vehicles. A regulating valve is installed on the engine exhaust pipe. Closing this valve increases the pressure during the exhaust stroke, utilizing the generated negative pressure to obtain braking force. 2. Mechanically driven, in most cases, it shares the same power source as the main brake. The exhaust brake is generally activated by a manual switch. To prevent the engine from stalling when parked and to avoid the exhaust brake engaging during fuel injection, the exhaust brake is automatically deactivated when the accelerator pedal or clutch pedal is pressed. 3. Since it requires cutting off the fuel supply during operation, the exhaust brake cannot be used in gasoline vehicles. Proper use of the exhaust brake can significantly reduce the use of service brakes (braking), thereby reducing wear on brake pads (or discs) and greatly lowering the risk of driving safety caused by overheating due to continuous braking of pads (or discs).