209 Error Code John Deere 4850 | JohnDeereErrorCode.com

Error Code 209 John Deere 4850

Model : 4850

209 indicates types of faults.

209 JD Fault Code

Description :

Engine Timing Sensor Signal Invalid. Noise is being detected on the engine position sensor on the crank shaft.

How to fix ?

Most of the time, this is caused by debris in the mower deck that is blocking the discharge. Simply cleaning out the mower deck can often correct this issue and prevent the smoke from reoccurring. If it doesn’t, the problem may be with your blades. Consider replacing them or having a mechanic take a look and attempt to fix the issue.The other fuel-related problem could be the fuel control lever on the engine itself. If it’s jammed closed, it will keep the fuel from getting to the engine even if the fuel filter is clean. First, determine why it is jammed. If it still moves, consider spraying down the moving parts with lubricating oil to get it moving again.


Deere & Company began industrial equipment production with a modified version of the model D, including some sold by Caterpillar. Deere steadily added additional indsutrial equipment to their farm machinery line, and had a full line by the 1960s. Today, Deere & Company is a major manufacturer of construction equipment.

Types Of John Deere Faults

ACUArmrest Control Unit Diagnostic Trouble Codes
ASUActiveSeat Unit Diagnostic Trouble Codes
TECTractor Equipment Control Unit Diagnostic Trouble Codes
CDCClimaTrak Display Codes
BRCFront Brake Control Unit Diagnostic Trouble Codes
CABCab Control Unit Diagnostic Trouble Codes
CCUCentral Control Unit Diagnostic Trouble Codes
CLCCab Load Center Diagnostic Trouble Codes
ECUEngine Control Unit Diagnostic Trouble Codes
HCUHitch Control Unit Diagnostic Trouble Codes
ICUInstrument Control Unit Diagnostic Trouble Codes
PTFFront PTO Control Unit Diagnostic Trouble Codes
IVTIVT Transmission Control Unit Diagnostic Trouble Codes
PTQPowrQuad Plus Transmission Control Unit Diagnostic Trouble Codes
SCOOptional SCV Control Unit Diagnostic Trouble Codes
SCUSCV Control Unit Diagnostic Trouble Codes
SFATriple-Link Suspension Control Unit Diagnostic Trouble Codes
SSUAutoTrac Steering System Control Unit Diagnostic Trouble Codes
TECTractor Equipment Control Unit Diagnostic Trouble Codes
VLCVehicle Load Center Control Unit Diagnostic Trouble Codes
BCUJohn Deere BCU Fault Codes
EPCJohn Deere EPC Fault Codes
ETCJohn Deere ETC Fault Codes
HTCJohn Deere HTC Fault Codes
JDLJohn Deere JDL Fault Codes
PLCJohn Deere PLC Fault Codes


John Deere Tractors And Error Codes

About Us | Contact | Privacy

Copyright 2022 - © johndeereerrorcode.com