JOHN DEERE 644H Faut Codes DTC

Alternators And Starting Motors—Use CTM77

For additional information, the component technical manual (CTM) is also required.

Use the CTM in conjunction with this machine manual.

Group 20

References

TS225 –UN–17JAN89

TX,20,111114 –19–04SEP96–1/1

9015 20 1

TM1637 (15JAN04)

9015-20-1

644H and 644H MH Loader

011504

PN=391

References

Diagnostic Trouble Code Quick Reference List

CCU SERVICE CODES

• F0275 CCU Power Dissipation Excessive TRANSMISSION SYSTEM CODES:

• F0300 Oil Temperature High Long

• F0305 TCU Output Speed Zero

• F0306 TCU Voltage Low

• F0307 TCU Voltage High

• F0308 TCU Valve Solenoid Power

• F0309 TCU Park Brake Solenoid Power

• F0315 Oil Filter Circuit Short-to-Power

• F0320 1st Gear Clutch Slippage

9015

• F0321 2nd Gear Clutch Slippage

• F0322 3rd Gear Clutch Slippage

• F0323 4th Gear Clutch Slippage

• F0324 Forward Gear Clutch Slippage

• F0325 Reverse Gear Clutch Slippage

• F0330 Clutch Cut-Off Circuit Voltage Low

• F0331 Clutch Cut-Off Circuit Voltage High

• F0336 TCU Configuration Bad

• F0337 TCU Memory Bad

• F0339 Temperature Sensor Voltage Short-to-Ground

• F0340 Temperature Sensor Voltage Short-to-Power

• F0341 Output Speed Signal Bad

• F0342 Output Speed Circuit Short-to-Ground

• F0343 Output Speed Circuit Short-to-Power

• F0344 Internal Clutch Speed Signal Bad

• F0345 Internal Clutch Speed Circuit Short-to-Ground

• F0346 Internal Clutch Speed Circuit Short-to-Power

• F0347 Turbine Speed Signal Bad

• F0348 Turbine Speed Circuit Short-to-Ground

• F0349 Turbine Speed Circuit Short-to-Power

• F0350 Input Speed Signal Bad

• F0351 Input Speed Circuit Short-to-Ground

• F0352 Input Speed Circuit Short-to-Power

• F0353 FWD High Range Clutch Pack Solenoid

Open

• F0354 FWD High Range Clutch Pack Solenoid Short to Ground

• F0355 FWD High Range Clutch Pack Solenoid Short to Power

• F0356 Third Speed Clutch Pack Solenoid Open

• F0357 Third Speed Clutch Pack Solenoid

Short-to-Ground

• F0358 Third Speed Clutch Pack Solenoid Short-to-Power

• F0359 Second Speed Clutch Pack Solenoid Open

• F0360 Second Speed Clutch Pack Solenoid

Short-to-Ground

• F0361 Second Speed Clutch Pack Solenoid Short-to-Power

• F0362 First Speed Clutch Pack Solenoid Open

• F0363 First Speed Clutch Pack Solenoid

Short-to-Ground

• F0364 First Speed Clutch Pack Solenoid Short-to-Power

• F0365 Reverse Clutch Pack Solenoid Open

• F0366 Reverse Clutch Pack Solenoid

Short-to-Ground

• F0367 Reverse Clutch Pack Solenoid Short-to-Power

• F0368 FWD Low Range Clutch Pack Solenoid Open

• F0369 FWD Low Range Clutch Pack Solenoid

Short-to-Ground

• F0370 FWD Low Range Clutch Pack Solenoid Short-to-Power

• F0375 Gear Selector

• F0377 Oil Temperature Circuit Short-to-Power

• F0378 Oil Temperature Circuit Open

• F0379 FNR Selector Switch Open

• F0380 Oil Filter Restricted

• F0384 Reverse Alarm Relay Short-to-Power

• F0385 Reverse Alarm Relay Short-to-Ground

• F0386 Reverse Alarm Relay Open

• F0387 Park Brake Solenoid Short-to-Power

• F0388 Park Brake Solenoid Short-to-Ground

• F0389 Park Brake Solenoid Open

• F0396 Oil Temperature High

TM1637 (15JAN04)

Continued on next page

9015-20-2

CED,TX17864,29 –19–30MAR99–1/3

644H and 644H MH Loader

011504

PN=392

References

NOTE: Some engine codes are listed more than once.

Access codes with Service ADVISOR to determine SPN.FMI number. If using monitor both diagnostic procedure should be followed.

Fuel injection system will be Level 3 or Level 9 Electronic fuel injection system. The term level is simply a means to identify fuel systems. Level 3 system meters the fuel at the injection pump. Level 9 system uses a High Pressure Common Rail (HPCR) and meters fuel at the injectors. See Distinguishing ECUs on 8.1 L Engines in CTM134.

ENGINE SYSTEM CODES:

• F0400 Oil Pressure Low Long

• F0411 Analog Throttle (A) Input High

• F0412 Analog Throttle (A) Input Low

• F0413 PWM Throttle Input Too High

• F0414 PWM Throttle Input Too Low

• F0415 CCU Throttle Circuit Voltage Low

• F0416 CCU Throttle Circuit Voltage High

• F0419 ECU Sensor Voltage High

• F0420 ECU Sensor Voltage Low

• F0423 Ambient Air Temperature Input Voltage High

(Level 3 ECU)

• F0423 Ambient Air Temperature Input Voltage High (Level 9 ECU)

• F0424 Ambient Air Temperature Input Voltage Low (Level 3 ECU)

• F0424 Ambient Air Temperature Input Voltage Low (Level 9 ECU)

• F0425 Engine Coolant Temperature Input Voltage High (Level 3 ECU)

• F0425 Engine Coolant Temperature Input Voltage High (Level 9 ECU)

• F0426 Engine Coolant Temperature Input Voltage Low (Level 3 ECU)

• F0426 Engine Coolant Temperature Input Voltage Low (Level 9 ECU)

• F0431 Cylinder #1 EI Circuit Open

• F0431 Cylinder #1 EI Circuit Shorted

• F0432 Cylinder #2 EI Circuit Open

• F0432 Cylinder #2 EI Circuit Shorted

• F0433 Cylinder #3 EI Circuit Open

• F0433 Cylinder #3 EI Circuit Shorted

• F0434 Cylinder #4 EI Circuit Open

• F0434 Cylinder #4 EI Circuit Shorted

• F0435 Cylinder #5 EI Circuit Open

• F0435 Cylinder #5 EI Circuit Shorted

• F0436 Cylinder #6 EI Circuit Open

• F0436 Cylinder #6 EI Circuit Shorted

• F0437 Fuel Temperature Input Voltage Too High

(Level 3 ECU)

• F0437 Fuel Temperature Input Voltage High (Level 9 ECU)

• F0438 Fuel Temperature Input Voltage Too Low (Level 3 ECU)

• F0438 Fuel Temperature Input Voltage Too Low (Level 9 ECU)

• F0439 Pump Control Valve #1 Error

• F0440 Pump Control Valve #2 Error

• F0441 Crank Position Input Missing

• F0442 Crank Position Input Noise

• F0442 Crank Position Input Pattern Error

• F0443 Pump Position Sensor Input Missing

• F0444 Pump Position Sensor Input Noise

• F0444 Pump Position Sensor Input Pattern Error

• F0445 Crank Position/Pump Position Timing

Moderately Out of Sync

• F0446 Rack Measurement Error

• F0447 Rack Position Error

• F0448 Rack Position Voltage High

• F0449 Rack Position Voltage Low

• F0450 Fuel Rail Pressure Input Voltage High

• F0451 Fuel Rail Pressure Input Voltage Low

• F0453 Water in Fuel Signal Voltage High

• F0454 Water in Fuel Signal Voltage Low

• F0455 Manifold Air Temperature Moderately High

• F0456 Pump Control Valve #2 Fuel Flow Not

Detected

• F0462 ECU Primary Speed Error

• F0463 ECU Start Signal Missing

• F0464 Engine Overspeed

• F0465 ECU Auxiliary Speed Error

• F0466 ECU Speed Signal Mismatch

• F0467 ECU Start Signal Active

• F0468 Fuel Shutoff Fault

• F0469 Pump Control Valve #1 Fuel Flow Not

Detected

• F0470 Fuel Rail Pressure Control Error

9015 20 3

TM1637 (15JAN04)

Continued on next page

9015-20-3

CED,TX17864,29 –19–30MAR99–2/3

644H and 644H MH Loader

011504

PN=393

References

• F0471 Fuel Rail Pressure Sensor Supply Voltage Low

• F0478 Oil Pressure Circuit Voltage Low

• F0479 Oil Pressure Circuit Voltage High

• F0485 Water in Fuel Detected

• F0499 Engine Oil Pressure Low

• F0500 Engine Coolant Temperature High Long

• F0515 Engine Air Filter Restriction Circuit

• F0516 Engine Fuel Level Circuit Voltage Low

• F0517 Engine Fuel Level Circuit Open

• F0575 Engine Coolant Level Circuit

• F0576 Engine Coolant Temperature Circuit Noisy

• F0577 Engine Coolant Temperature Circuit

Short-to-Ground

• F0578 Engine Coolant Temperature Circuit Open

• F0580 Engine Air Filter Restricted

9015

• F0588 Engine Coolant Level Low

• F0599 Engine Coolant Temperature High

STEERING SYSTEM CODES:

• F0998 Steering Pressure Circuit

• F0999 Steering Pressure Low

BRAKE SYSTEM CODES:

• F1637 CCU Timer Reset

• F1638 Proportional Fan Drive Solenoid Circuit Error

• F1639 Reverse Fan Drive Solenoid Circuit Error

• F1641 Drive Light Switch Circuit Open

• F1644 MDU Memory Bad

• F1645 CCU Memory Bad

• F1647 Machine Odometer Bad

• F1648 Machine Hourmeter Bad

• F1649 CCU Hourmeter Bad

• F1651 No ECU CAN Transmit

• F1653 No CCU CAN Transmit

• F1655 No TCU CAN Transmit

• F1658 Power Voltage Balance

• F1660 Alternator Voltage High

• F1661 Alternator Voltage Low

• F1662 Power Voltage High

• F1663 Power Voltage Low

• F1664 Brake Light Pressure Circuit

• F1665 Drive Light Switch Circuit

• F1667 Turn Switch Circuit Short

• F1668 Hazard Switch Circuit

• F1671 Return to Carry Detent Solenoid Circuit Error

• F1672 Boom Height Kickout Detent Solenoid Circuit

Error

• F1699 Configuration Bad

• F1097 Service Brake Pressure Circuit

• F1099 Service Brake Pressure Low

ELECTRICAL SYSTEM CODES:

• F1620 CCU Spare Relay #1 Short

• F1621 CCU Spare Relay #3 Short

• F1622 CCU Spare Relay #4 Short

• F1623 CCU Spare Relay #5 Short

• F1624 Air Preheat Driver Short Ground

• F1625 Detent Enable Driver Short-to-Ground

• F1626 Ride Control Boom Driver Short-to-Ground

• F1628 Ride Control On Driver Short-to-Ground

• F1629 Left Turn Driver Short-to-Ground

• F1630 Right Turn Driver Short-to-Ground

• F1633 Secondary Steering Driver Short-to-Ground

• F1634 Rear Wiper Driver Short-to-Ground

• F1635 Front Wiper Driver Short-to-Ground

• F1636 CCU Relay Driver Overtemp

HYDRAULIC SYSTEM CODES:

• F2100 Oil Temperature High Long

• F3115 Oil Filter Restriction Circuit Short-to-Ground

• F3150 Oil Filter Restriction Circuit Short-to-Power

• F3160 Ride Control Circuit Short-to-Power

• F3161 Ride Control Auto Circuit Short-to-Ground

• F3162 Ride Control On Circuit Short-to-Ground

• F3163 Boom Position Voltage Low

• F3165 Boom Position Voltage High

• F3171 Hydraulic Oil Pressure Circuit Voltage Low

• F3172 Hydraulic Oil Pressure Circuit Voltage High

• F3173 LPM Mode Circuit

• F3174 LPM Enable Circuit Short-to-Ground

• F3175 Hydraulic Oil Temperature Circuit

Short-to-Ground

• F3176 Hydraulic Oil Temperature Circuit Open

• F3177 Hydraulic Oil Temperature Circuit Noisy

• F3199 Hydraulic Oil Temperature High

TM1637 (15JAN04)

9015-20-4

CED,TX17864,29 –19–30MAR99–3/3

644H and 644H MH Loader

011504

PN=394

References

Transmission Diagnostic Trouble Codes (DTCs)

IMPORTANT: Whenever a Transmission Control Unit

(TCU), a Chassis Computer Unit (CCU), or Monitor Display Unit (MDU) is replaced, the MDU must be reconfigured in the Service Menu. See Monitor Display Unit Reconfiguration Access Service Menu, Machine Model (S 01), Tire Size (S 03), Enable Options (S 06), and Delete Diagnostic Trouble Codes in Group 9015—15.

NOTE: A Diagnostic Trouble Code (DTC) is the same as

a Service Code. The term DTC conforms with the standards set by the Society of Automotive Engineers (SAE).

References: See System Functional Schematic

9015 20 5

Symptom Problem

Solution

F0275 CCU Power Dissipation CCU (A2) CCU (Replace) Excessive

MDU (Reconfigure). See Monitor Display Unit Reconfiguration Access Service Menu, Machine Model (S

01), Tire Size (S 03), Enable Options (S 06), and Delete Diagnostic Trouble Codes in Group 9015—15.

F0300 Transmission Oil Transmission Oil Type Wrong Transmission Oil Type Temperature High Long* (Check/Replace)

Tell-Tale Code displayed in MDU “Service” menu. See Monitor Display Unit —Service Menu— Tell-Tale Diagnostic Trouble Codes (S 02) in Group 9015-15.

Transmission Oil Level Too High or Transmission Oil Level Too Low (Check/Adjust)

TM1637 (15JAN04)

Continued on next page

9015-20-5

TX,9015,111902 –19–30MAR99–1/32

644H and 644H MH Loader

011504

PN=395

References

Symptom Problem

9015

Solution

Transmission Oil Cooler Internal Transmission Oil Cooler Internal Restriction Restriction (Check/Repair)

Transmission Oil Cooler Air Flow Transmission Oil Cooler Air Flow Restriction Restriction (Check/Repair)

Transmission Oil Cooler Air Flow Restriction (Check/Clean)

Transmission Oil Temperature Transmission Oil Temperature Sensor (B32) Short-To-Ground Sensor (B32) Short-To-Ground

(Check/Replace)

Transmission Main Pressure Transmission Main Pressure Regulating Valve Spring Broken Regulating Valve Spring Broken

(Check/Replace)

Transmission Oil Pump Inlet Screen Transmission Oil Pump Inlet Screen Plugged (Check/Clean)

Transmission Control Valve Gasket Transmission Control Valve Gasket

(Check/Replace)

Torque Converter Relief Valve Stuck Torque Converter Relief Valve Open (Check/Repair)

Transmission Oil Cooler Bypass Transmission Oil Cooler Bypass Valve Stuck Open Valve Stuck Open (Check/Repair)

Transmission Oil Pump Worn Transmission Oil Pump Worn

(Check/Replace)

F0305 TCU Output Speed Zero Rocker, Restriction, Radio Switches Rocker, Restriction, Radio Switches

5A fuse (F23) 5A fuse (F23), Check/Replace Transmission Output Shaft Speed Transmission Output Shaft Speed

Sensor (B31) Sensor (B31), Check/Replace Wire M10 (Purple) Harness (W10) Transmission Harness (W10)—M10

Short-To-Power (Purple) Short-To-Power

(Check/Repair)

Wire R22 (Black) Harness (W10) Transmission Harness (W10)—R22 Short-To-Battery (Black) Short-To-Battery

(Check/Repair)

TM1637 (15JAN04)

Continued on next page

9015-20-6

TX,9015,111902 –19–30MAR99–2/32

644H and 644H MH Loader

011504

PN=396

References

Symptom Problem

Solution

TCU (A3) TCU (Replace)

F0306 TCU Voltage Low Batteries Batteries (Recharge/Replace)

Alternator Alternator (G4), Check/Repair

F0307 TCU Voltage High Batteries Batteries (Recharge/Replace)

Alternator Alternator (G4), Check/Repair

F0308 TCU Valve Solenoid Power TCU (A3) TCU (Replace) F0309 TCU Park Brake Solenoid TCU (A3) TCU (Replace)

Power F0315 Transmission Oil Filter Transmission Oil Filter Restriction Transmission Oil Filter Restriction

Circuit Short-To-Power Switch (B20) Short-To-Power Switch (B20) Short-To-Power

(Check/Replace)

Wire N03 (Yellow) Harness (W10) Transmission Harness (W10) - N03 Short-To-Power (Yellow) Short-To-Power

(Check/Repair)

9015 20 7

Wire N03 (Yellow) Harness (W3) Load Center Harness (W3) - N03 Short-To-Power (Yellow) Short-To-Power

(Check/Repair)

CCU (A2) CCU (Replace)

MDU (Reconfigure). See Monitor Display Unit Reconfiguration Access Service Menu, Machine Model (S

01), Tire Size (S 03), Enable Options (S 06), and Delete Diagnostic Trouble Codes in Group 9015—15.

F0320 Transmission 1st Gear Transmission Oil Pump Inlet Screen Transmission Oil Pump Inlet Screen Clutch Slippage Plugged (Clean)

Transmission Oil Type Wrong Transmission Oil Type

(Check/Replace)

Transmission Control Valve Transmission Control Valve

(Check/Replace)

TM1637 (15JAN04)

Continued on next page

9015-20-7

TX,9015,111902 –19–30MAR99–3/32

644H and 644H MH Loader

011504

PN=397

References

Symptom Problem

9015

Solution

Transmission Control Valve Gasket Transmission Control Valve Gasket Leaking (Replace)

Transmission Oil Pump Worn Transmission Oil Pump Worn

(Check/Replace)

Transmission Control Solenoid (Y1) Transmission Control Solenoid (Y1) Malfunction (Replace)

Transmission Control Solenoid (Y2) Transmission Control Solenoid (Y2) Malfunction (Replace)

Transmission Control Solenoid (Y3) Transmission Control Solenoid (Y3) Malfunction (Replace)

Transmission Control Solenoid (Y4) Transmission Control Solenoid (Y4) Malfunction (Replace)

Transmission Control Solenoid (Y5) Transmission Control Solenoid (Y5) Malfunction (Replace)

Transmission Control Solenoid (Y6) Transmission Control Solenoid (Y6) Malfunction (Replace)

Transmission Output Speed Shaft Transmission Output Speed Shaft Sensor (B31) Open Sensor (B31) Open (Check/Repair)

Wire M10 (Purple) Harness (W10) Transmission Harness (W10) - M10 Open (Purple) Open (Check/Repair)

Wire M10 (Purple) Harness (W3) Load Center Harness (W3) - M10 Open (Purple) Open (Check/Repair)

F0321 Transmission 2nd Gear Transmission Oil Pump Inlet Screen Transmission Oil Pump Inlet Screen Clutch Slippage Plugged (Clean)

Transmission Oil Type Wrong Transmission Oil Type

(Check/Replace)

Transmission Control Valve Transmission Control Valve

(Check/Replace)

Transmission Control Valve Gasket Transmission Control Valve Gasket Leaking (Replace)

TM1637 (15JAN04)

Continued on next page

9015-20-8

TX,9015,111902 –19–30MAR99–4/32

644H and 644H MH Loader

011504

PN=398

References

Symptom Problem

Transmission Oil Pump Worn Transmission Oil Pump Worn

Transmission Control Solenoid (Y1) Transmission Control Solenoid (Y1) Malfunction (Replace)

Transmission Control Solenoid (Y2) Transmission Control Solenoid (Y2) Malfunction (Replace)

Transmission Control Solenoid (Y3) Transmission Control Solenoid (Y3) Malfunction (Replace)

Transmission Control Solenoid (Y4) Transmission Control Solenoid (Y4) Malfunction (Replace)

Transmission Control Solenoid (Y5) Transmission Control Solenoid (Y5) Malfunction (Replace)

Transmission Control Solenoid (Y6) Transmission Control Solenoid (Y6) Malfunction (Replace)

Transmission Output Speed Shaft Transmission Output Speed Shaft Sensor (B31) Open Sensor (B31) Open (Check/Repair)

Solution

(Check/Replace)

9015 20 9

Wire M10 (Purple) Harness (W10) Transmission Harness (W10) - M10 Open (Purple) Open (Check/Repair)

Wire M10 (Purple) Harness (W3) Load Center Harness (W3) - M10 Open (Purple) Open (Check/Repair)

F0322 Transmission 3rd Gear Transmission Oil Pump Inlet Screen Transmission Oil Pump Inlet Screen Clutch Slippage Plugged (Clean)

Transmission Oil Type Wrong Transmission Oil Type

(Check/Replace)

Transmission Control Valve Transmission Control Valve

(Check/Replace)

Transmission Control Valve Gasket Transmission Control Valve Gasket Leaking (Replace)

Transmission Oil Pump Worn Transmission Oil Pump Worn

(Check/Replace)

TM1637 (15JAN04)

Continued on next page

9015-20-9

TX,9015,111902 –19–30MAR99–5/32

644H and 644H MH Loader

011504

PN=399

References

Symptom Problem

9015

20 10