John Deere 6120 6220 6320 6420 6120L 6220L 6320L 6420L 6520L Tractor Diagnostic & Tests Service Manual TM4733 PDF - MJODTM4726.zip
A complete Diagnostic & Testing guide, complete with electrical schematics, covering the John Deere 6120, 6220, 6320, 6420, 6120L, 6220L, 6320L, 6420L, and 6520L tractors—packed with every workshop detail needed to maintain, troubleshoot, and repair these machines to professional shop standards.
The factory Diagnosis & Tests service manual for John Deere 2WD and MFWD tractors 6120, 6220, 6320, 6420, 6120L, 6220L, 6320L, 6420L, and 6520L contains:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
tm4733 - 6120 to 6420 Tractors Diagnostics Technical Manual.pdf
tm4733 - 6120 to 6420 Tractors Diagnostics Technical Manual.epub
Total Pages: 2,112 pages
File Format: PDF/EPUB/MOBI/AZW (PC/Mac/Android/Kindle/iPhone/iPad; bookmarked, ToC, Searchable, Printable)
Language: English
MAIN SECTIONS
Foreword
Version date
GENERAL INFORMATION
Safety Information
DIAGNOSTIC TROUBLE CODES
ATC Diagnostic Trouble Codes
BCU Diagnostic Trouble Codes
BIF Diagnostic Trouble Codes
ECU Diagnostic Trouble Codes
EPC Diagnostic Trouble Codes
JDL Diagnostic Trouble Codes
PLC Diagnostic Trouble Codes
PRF Diagnostic Trouble Codes
SFA Diagnostic Trouble Codes
SIC Diagnostic Trouble Codes
SSU Diagnostic Trouble Codes
TCU Diagnostic Trouble Codes
TEC Diagnostic Trouble Codes
TEI Diagnostic Trouble Codes
UIC Diagnostic Trouble Codes
OBSERVABLE SYMPTOMS
Engine
Electrical System
SyncroPlus Transmission
Power Reverser Transmission
AutoPowr/IVT Transmission
PowrQuad, PowrQuad Plus and AutoQuad Transmissions
Drive Systems
Steering and Brakes
Hydraulic System
Miscellaneous
Operator's Station
SYSTEM DIAGNOSTICS
Electronics
tm4733 - 6120 to 6420 Tractors Diagnostics
Table of Contents
Foreword
Version date
Section 210: GENERAL INFORMATION
Group 05: Safety Information
Recognize Safety Information
“Important” - Information
“Note” - Information
Prevent Machine Runaway
Handle Fluids Safely-Avoid Fires
Prevent Battery Explosions
Prepare for Emergencies
Prevent Acid Burns
Avoid High-Pressure Fluids
Service Cooling System Safely
Remove Paint Before Welding or Heating
Avoid Heating Near Pressurized Fluid Lines
Work In Ventilated Area
Wear Protective Clothing
Practice Safe Maintenance
Park Machine Safely
Use Proper Lifting Equipment
Construct Dealer-Made Tools Safely
Support Machine Properly
Work in Clean Area
Illuminate Work Area Safely
Service Machines Safely
Use Proper Tools
Service Tires Safely
Service Front-Wheel Drive Tractor Safely
Avoid Eye Contact With Radar
Keep ROPS Installed Properly
Replace Safety Signs
Dispose of Waste Properly
Live With Safety
Safety Measures for Electronic Control Units
Section 211: DIAGNOSTIC TROUBLE CODES
Group ATC: ATC Diagnostic Trouble Codes
ATC 000170.03 -Sending Unit for Inside Air Temperature, Shorted or Open Circuit
ATC 000170.04 -Sending Unit for Inside Air Temperature, Short to Ground
ATC 000171.03-Sending Units for Ambient Air Temperature, Shorted or Open Circuit
ATC 000171.04- Sending Units for Ambient Temperature, Short to Ground
ATC 000628.12-Controller, Internal Fault
ATC 000630.02-Controller, Internal Fault
ATC 000639.14-29-bit CAN BUS, High Error Rate
ATC 000871.03-Refrigerant Pressure Sending Unit, Shorted Circuit
ATC 000871.04-Refrigerant Pressure Sending Unit, Grounded or Open Circuit
ATC 000876.03-Air-Conditioning Relay, Shorted or Open Circuit
ATC 000876.04-Air-Conditioning Relay, Grounded Circuit
ATC 000876.10-Compressor Clutch Engages and Disengages Too Often
ATC 000876.14-Compressor Switches Off Due to Engine Overheating
ATC 000919.03-Solar Sensor Activated
ATC 000923.03-Driver Unit for the Fan Motors, Shorted Circuit
ATC 000923.04-Fan Motor Driver Unit, Grounded or Open Circuit
ATC 000923.12-Fan Motors, Malfunction
ATC 001079.03-5-volt Power Supply, Shorted or Open Circuit
ATC 001079.04-5-volt Power Supply, Grounded Circuit
ATC 001546.03-Potentiometer for Position of Water Valve, Shorted or Open Circuit
ATC 001546.04-Potentiometer for Water Valve Position, Grounded Circuit
ATC 001547.03-Sending Units for Evaporator Core Temperature, Shorted or Open Circuit
ATC 001547.04-Sending Unit for Evaporator Core Temperature, Short to Ground
ATC 001548.03-Sending Unit for Actual Outlet Air Temperature, Shorted or Open Circuit
ATC 001548.04-Sending Unit for Actual Outlet Air Temperature, Grounded Circuit
ATC 001549.03-Water Valve Motor, Shorted Circuit
ATC 001549.04-Water Valve Motor, Grounded Circuit
ATC 001549.07-Water Valve, Malfunction
ATC 001549.13-Water Valve Not Calibrated
ATC 001552.03-Temperature Control, Shorted or Open Circuit
ATC 001552.04-Temperature Control, Grounded Circuit
ATC 001553.03-Fan Speed Control, Shorted or Open Circuit
ATC 001553.04-Fan Speed Control, Grounded Circuit
ATC 002000.09 -Engine Control Unit is not Transmitting any Data (Coolant Temperature)
ATC 523848.03-Potentiometer for Position of Air Distribution Flaps, Shorted or Open Circuit
ATC 523848.04-Potentiometer for Position of Air Distribution Flaps, Grounded Circuit
ATC 523848.05-Adjusting Motor for Air Distribution, Shorted Circuit
ATC 523848.06-Adjusting Motor for Air Distribution, Grounded Circuit
ATC 523848.07-Air Distribution, Malfunction
ATC 523848.13-Adjusting Motor for Air Distribution, Not Calibrated
ATC 523860.03-Defog Sensor, Shorted or Open Circuit
ATC 523860.04-Defog Sensor, Grounded Circuit
ATC 523860.02-Defog Sensor, Frequency out of Valid Range
Group BCU: BCU Diagnostic Trouble Codes
BCU 000084.02-Wheel Speed Sender, Circuit Fault
BCU 000168.16-System Voltage too High (Engine Running)
BCU 000168.17-System Voltage too Low (Engine Speed over 1500 rpm)
BCU 000168.18-System Voltage too Low (Engine Speed until 1500 rpm)
BCU 000186.02-Rear PTO Speed Sender, Circuit Fault
BCU 000186.15-Rear PTO Speed Registered After Switch-Off
BCU 000186.17-Rear PTO Speed Not Registered
BCU 000190.02-Engine Speed Sender, Circuit Fault
BCU 000629.12-Control Unit, Internal Error
BCU 000639.12-Control Unit, Internal Error
BCU 000639.13-29-Bit CAN BUS, High Error Rate
BCU 000639.19-29-bit CAN BUS, Very High Error Rate
BCU 000746.31-Differential Lock Solenoid Valve, Circuit Fault
BCU 000980.07-Rear PTO, Switch Error
BCU 001676.31-Relay for LTC Coolant Pump, Circuit Fault
BCU 001882.02-Front PTO Speed Sender, Circuit Fault
BCU 001882.15-Front PTO Speed Registered After Switch-Off
BCU 001882.17-Front PTO Speed Not Registered
BCU 001893.07-Front PTO, Switch Error
BCU 299780.07-Malfunction at Turn Signal Switch
BCU 302001.31-INFORMATION FOR OPERATOR: 250-Hour Service
BCU 302002.31-INFORMATION FOR OPERATOR: 500-Hour Service
BCU 302003.31-INFORMATION FOR OPERATOR: 750-Hour Service
BCU 302004.31-INFORMATION FOR OPERATOR: 1500-Hour Service
BCU 302071.31-INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch
BCU 302073.31-Rear PTO Solenoid, Circuit Fault
BCU 302077.31-INFORMATION FOR OPERATOR: Sit on Seat or Turn Off the Rear PTO
BCU 302080.31-Differential Lock, Switch Error
BCU 302082.31-INFORMATION FOR OPERATOR: Actuate the Front-Wheel Drive Switch
BCU 302085.31-Front Wheel Drive, Switch Error
BCU 302086.31-Front-Wheel Drive Clutch Solenoid, Circuit Fault
BCU 302089.31-INFORMATION FOR OPERATOR: Turn Off the Rear PTO Switch
BCU 302106.31-Control Unit, Internal Error
BCU 302120.31-Front PTO Solenoid Valve, Circuit Fault
BCU 302123.31-Forward/Reverse Switch Signal Does not Match Signal of Not-Neutral Switch
BCU 302124.31-Alternator Relay, Circuit Fault
BCU 302131.31-Fault in Turn Signal Circuit
BCU 302132.31-Hazard Warning Light Fuse Defective
BCU 302133.31-Rear PTO Preselector, Switch Error
BCU 302134.31-HMS Program Switch Defective
BCU 302240.31-Control Unit Connected to Wrong Wiring Harness Connector
BCU 303027.31-Calibration of Hitch Control Unit Not Successful
BCU 303028.31-Hitch Control Unit Not Calibrated
BCU 303037.03-5-Volt Power Supply is too High
BCU 303037.04-5-Volt Power Supply is too Low
BCU 303041.02-Stepper Motor Coil 1, Open Lead
BCU 303042.02-Stepper Motor Coil 2, Open Lead
BCU 303043.02-Stepper Motor Coil 1, Circuit Fault
BCU 303044.02-Stepper Motor Coil 2, Circuit Fault
BCU 303045.04-System Voltage Too Low
BCU 303047.03-System Voltage Too High
BCU 303049.02-Conflicting Signals from Quick Raise/Lower Switch and Remote Switch
BCU 303049.03-Rapid Raise/Lower Rocker Switch, Signal Voltage Too High
BCU 303049.04-Rapid Raise/Lower Rocker Switch, Signal Voltage Too Low
BCU 303051.03-Left Draft Sensor, Signal Voltage Too High
BCU 303051.04-Left Draft Sensor, Signal Voltage Too Low
BCU 303052.03-Right Draft Sensor, Signal Voltage Too High
BCU 303052.04-Right Draft Sensor, Signal Voltage Too Low
BCU 303053.03-Sensitivity Potentiometer, Signal Voltage Too High
BCU 303053.04-Sensitivity Potentiometer, Signal Voltage Too Low
BCU 303054.03-Hitch Height Control Potentiometer, Signal Voltage Too High
BCU 303054.04-Hitch Height Control Potentiometer, Signal Voltage Too Low
BCU 303055.03-Position Sensor, Signal Voltage Too High
BCU 303055.04-Position Sensor, Signal Voltage Too Low
BCU 303056.03-Raise Limit Potentiometer, Signal Voltage Too High
BCU 303056.04-Raise Limit Potentiometer, Signal Voltage Too Low
BCU 303057.03-Rate-of-Drop Potentiometer, Signal Voltage Too High
BCU 303057.04-Rate-of-Drop Potentiometer, Signal Voltage Too Low
BCU 303058.02-Remote Control Switch, Erroneous Signal
BCU 303060.02-Stepper Motor Deadband Out of Range
BCU 303177.18-Oil Temperature During Calibration Too Low
BCU 303251.02-Left Draft Sender, Disrupted Signal During Calibration
BCU 303251.03-Left Draft Sender, Signal Voltage Too High During Calibration
BCU 303251.04-Left Draft Sender, Signal Voltage Too Low During Calibration
BCU 303252.02-Right Draft Sensor, Distorted Signal During Calibration
BCU 303252.03-Right Draft Sensor, Signal Voltage Too High During Calibration
BCU 303252.04-Right Draft Sensor, Signal Voltage Too Low During Calibration
BCU 303255.03-Position Sender, Signal Voltage Too High During Calibration
BCU 303255.04-Position Sender, Signal Voltage Too Low During Calibration
BCU 303260.16-Stepper Motor Raising Deadband Above Valid Range During Calibration
BCU 303260.18-Stepper Motor Raising Deadband Below Valid Range During Calibration
BCU 303261.16-Stepper Motor Lowering Deadband Above Valid Range During Calibration
BCU 303261.18-Stepper Motor Lowering Deadband Below Valid Range During Calibration
Group BIF: BIF Diagnostic Trouble Codes
BIF 000096.03-Fuel Gauge Sender, Short or Open Circuit
BIF 000096.04-Fuel Gauge Sender, Grounded Circuit
BIF 000096.17-Low Fuel Level
BIF 000100.00-Engine Oil Pressure Low
BIF 000107.16-Engine Air Filter Restricted
BIF 000110.00-Coolant Temperature Very High
BIF 000110.03-Coolant Temperature Sender, Short or Open Circuit
BIF 000110.04-Coolant Temperature Sender, Grounded Circuit
BIF 000110.16-Coolant Temperature High
BIF 000126.15-Hydraulic Oil Filter Dirty
BIF 000126.16-Transmission/Hydraulic Oil Filter Restricted
BIF 000127.00-Transmission Oil Pressure Low
BIF 000167.16-D+ Voltage is High (Engine Running)
BIF 000167.17-D+ Voltage Too Low (Engine Speed Over 1500 rpm)
BIF 000167.18-D+ Voltage Too Low (Engine Speed Up To 1500 rpm)
BIF 000168.16-System Voltage Too High (Engine Running)
BIF 000168.17-System Voltage Too Low (Engine Speed Over 1500 rpm)
BIF 000168.18-System Voltage Too Low (Engine Speed Up To 1500 rpm)
BIF 000177.00-Hydraulic Oil Temperature Very High
BIF 000177.03-Hydraulic Oil Temperature Sender, Shorted or Open Circuit
BIF 000177.04-Hydraulic Oil Temperature Sender, Grounded Circuit
BIF 000177.16-Hydraulic Oil Temperature High
BIF 000186.16-INFORMATION FOR OPERATOR: Warning, Rear PTO Speed
BIF 000190.02-No Signal From Engine Speed Sender
BIF 000628.02-Control Unit, Internal Error
BIF 000639.02-29-Bit CAN BUS, Open Circuit
BIF 301141.31-INFORMATION FOR OPERATOR: Switch off worklights while driving on road
BIF 301143.31-INFORMATION FOR OPERATOR: Preheat time remaining
Group ECU: ECU Diagnostic Trouble Codes
ECU 000028.03-Cruise Control Potentiometer Input Voltage High
ECU 000028.04-Cruise Control Potentiometer Input Voltage Low
ECU 000029.03-Hand Throttle Potentiometer Input Voltage High
ECU 000029.04-Hand Throttle Potentiometer Input Voltage Low
ECU 000084.31-Vehicle Speed Mismatch
ECU 000091.03-Accelerator Pedal Potentiometer Input Voltage High
ECU 000091.04-Accelerator Pedal Potentiometer Input Voltage Low
ECU 000091.07-Hand Throttle or Accelerator Pedal Not Calibrated Correctly
ECU 000091.13-Hand Throttle or Accelerator Pedal, Calibration Interrupted
ECU 000094.03-Fuel Supply Pressure Input Voltage High
ECU 000094.04-Fuel Supply Pressure Input Voltage Low
ECU 000094.10-Fuel Rail Pressure Loss Detected
ECU 000094.13-Fuel Rail Pressure Higher Than Expected
ECU 000094.17-Fuel Rail Pressure Not Developed
ECU 000097.03-Input Voltage from Water-in-Fuel Sensor High
ECU 000097.04-Input Voltage from Water-in-Fuel Sensor Low
ECU 000097.16-Water in Fuel Detected
ECU 000100.01-Engine Oil Pressure Extremely Low
ECU 000100.03-Engine Oil Pressure Input Voltage High
ECU 000100.04-Engine Oil Pressure Input Voltage Low
ECU 000100.18-Engine Oil Pressure Moderately Low
ECU 000105.03-Manifold Air Temperature Input Voltage High
ECU 000105.04-Manifold Air Temperature Input Voltage Low
ECU 000105.16-Manifold Air Temperature Moderately High
ECU 000110.00-Engine Coolant Temperature Extremely High
ECU 000110.03-Engine Coolant Temperature Input Voltage High
ECU 000110.04-Engine Coolant Temperature Input Voltage Low
ECU 000110.15-Engine Coolant Temperature Slightly High
ECU 000110.16-Engine Coolant Temperature Moderately High
ECU 000158.17-ECU Power Down Error
ECU 000160.02-Wheel Speed Sensor Input Noise
ECU 000174.03-Fuel Temperature Input Voltage High
ECU 000174.04-Fuel Temperature Input Voltage Low
ECU 000174.16-Fuel Temperature Moderately High
ECU 000189.00-Engine Speed Derate
ECU 000190.00-Engine Racing Excessively
ECU 000190.02-Engine Speed Input Noise
ECU 000190.16-Engine Speed Slightly High
ECU 000611.03-Electronic Injector Wiring Shorted To Power Source
ECU 000611.04-Electronic Injector Wiring Shorted To Ground
ECU 000620.03-Sensor Supply 2 Voltage High
ECU 000620.04-Sensor Supply 2 Voltage Low
ECU 000627.01-Electronic Injector Supply Voltage Problem
ECU 000629.13-ECU Error
ECU 000636.02-Pump Position Sensor Input Noise
ECU 000636.08-Pump Position Sensor Input Missing
ECU 000636.10-Pump Position Sensor Input Pattern Error
ECU 000637.02-Crank Position Input Noise
ECU 000637.07-Crank Position/Pump Position Timing Moderately Out of Sync
ECU 000637.08-Crank Position Input Missing
ECU 000637.10-Crank Position Input Pattern Error
ECU 000651.05-Cylinder No. 1 EI Circuit Open
ECU 000651.06-Cylinder No. 1 EI Circuit Shorted
ECU 000651.07-Cylinder No. 1 EI Fuel Delivery Failure