Chassis Diagnostic Trouble Codes

Displayed Text	Description	Solution
Park Brake On	Park brake engaged and vehicle is not moving. No audible alarm is sounded.	Message persists as long as the park brake remains engaged.
Secondary Brake Is On	Secondary brake is engaged and vehicle speed is greater than 4.8 km/h (3 mph). A continuous audible alarm sounds.	Disengage the secondary brake.
		Reduce the vehicle speed before engaging the secondary brake.
		Stop the vehicle and restart the engine. If the code returns, see your John Deere dealer as soon as possible.
Secondary Brake On	Secondary brake is engaged and vehicle is not moving. An initial audible alarm sounds.	Message persists as long as the secondary brake remains engaged.
Low Fuel	Fuel tank has less than 10% of fuel volume. An initial audible alarm sounds.	Fill the fuel tank with at least 40% or more of the fuel tank volume and restart the engine. If the code returns, see your John Deere dealer at earliest convenience.
Wait to Start Engine. Pre-Heating is Active	Engine start aid is active.	Wait until the engine start aid indicator light turns off and start the engine. If the code returns, see your John Deere dealer at earliest convenience.
Scheduled Maintenance/Service Due	There are four separate alarms at 50, 100, 250, and 500 hours. Each alarm is set when the corresponding engine operating hours have accumulated since the maintenance/service hour counter was reset. An initial audible alarm sounds.	Reset the maintenance/service hour counter. If the code returns, see your John Deere dealer at earliest convenience.
SprayStar™: System Error—Data May Be Lost	Data error occurred on power-up of the SprayStar™ control unit. An initial audible alarm sounds.	Data error related to a power loss problem. Restart the engine. If the code returns, see your John Deere dealer at earliest convenience.
SprayStar™: Fuel Sensor Error—Out of Range High	Fuel sensor input voltage is above normal. An initial audible alarm sounds.	Restart the engine. If the code returns, see your John Deere dealer at earliest convenience.
SprayStar™: Fuel Sensor Error—Out of Range Low	Fuel sensor input voltage is below normal. An initial audible alarm sounds.	Restart the engine. If the code returns, see your John Deere dealer at earliest convenience.