Diagnostic Service Codes

Service Code Problem Solution
     
Armrest Control Unit Service Codes (ACU)
     
ACU 1 ACU control unit fault Have your John Deere Dealer repair
     
ACU 2 SCV lever calibration Have your John Deere Dealer repair
     
ACU 3 Throttle or hitch calibration fault Have your John Deere Dealer repair
     
ACU 27 Calibration incomplete Have your John Deere Dealer repair
     
ACU 28 ACU not calibrated Have your John Deere Dealer repair
     
ACU 30 Throttle lever circuit failure Have your John Deere Dealer repair
     
ACU 40 Transmission shift lever failure Have your John Deere Dealer repair
     
ACU 41 ACU powered up in gear Reset with shift lever in park
     
ACU 42 Transmission park position conflict Have your John Deere Dealer repair
     
ACU 49 Hitch up/down selector ON at start-up Restart with hitch up/down selector OFF
     
ACU 53, 54, 56, 57 Hitch control inputs open circuit or shorted Have your John Deere Dealer repair
     
ACU 70 IMS switch error Have your John Deere Dealer repair
     
ACU 71 Auto resume switch fault Have your John Deere Dealer repair
     
ACU 110, 111, 120, 121, 130, 131, 140, 141, 150, 151 SCV control lever failure Have your John Deere Dealer repair
     
     
ClimaTrak Display Codes (ATC) (If Equipped) (Serial No. 010001-)

NOTE: Each code will have either an "a" suffix for active or an "S" suffix for stored.
     
01.3 Cab temperature sensor circuit voltage high See your John Deere Dealer
     
01.4 Cab temperature sensor circuit voltage low See your John Deere Dealer
     
03.3 Ambient temperature sensor circuit voltage high See your John Deere Dealer
     
03.4 Ambient temperature sensor circuit voltage low See your John Deere Dealer
     
07.3 Duct air temperature sensor circuit voltage high See your John Deere Dealer
     
07.4 Duct air temperature sensor circuit voltage low See your John Deere Dealer
     
08.3 Evaporator temperature sensor circuit voltage high See your John Deere Dealer
     
08.4 Evaporator temperature sensor circuit voltage low See your John Deere Dealer
     
09.1 Excessive A/C clutch cycling See your John Deere Dealer
     

 

BB92646,00000AC -19-27SEP05-1/16

Service Code Problem Solution
     
10.3 Temperature control circuit voltage high See your John Deere Dealer
     
10.4 Temperature control circuit voltage low See your John Deere Dealer
     
11.3 Blower control circuit voltage high See your John Deere Dealer
     
11.4 Blower control circuit voltage low See your John Deere Dealer
     
12.3 Water valve position sensor circuit voltage high See your John Deere Dealer
     
12.4 Water valve position sensor circuit voltage low See your John Deere Dealer
     
13.1 Water valve motor not calibrated See your John Deere Dealer
     
13.3 Water valve motor voltage high See your John Deere Dealer
     
13.4 Water valve motor voltage low See your John Deere Dealer
     
13.7 Water valve motor mechanical fault See your John Deere Dealer
     
14.3 Air flow mode control circuit voltage high See your John Deere Dealer
     
14.4 Air flow mode control circuit voltage low See your John Deere Dealer
     
15.1 Air flow control motor not calibrated See your John Deere Dealer
     
15.5 Air flow control motor circuit voltage high See your John Deere Dealer
     
15.6 Air flow control motor circuit voltage low See your John Deere Dealer
     
15.7 Air flow control motor mechanical fault See your John Deere Dealer
     
16.3 Compressor clutch circuit voltage high See your John Deere Dealer
     
16.4 Compressor clutch circuit voltage low See your John Deere Dealer
     
17.3 Pressurizer blower motor circuit voltage high See your John Deere Dealer
     
17.4 Pressurizer blower motor circuit voltage low See your John Deere Dealer
     
18.3 Recirculation blower motor circuit voltage high See your John Deere Dealer
     
18.4 Recirculation blower motor circuit voltage low See your John Deere Dealer
     
19.1 Recirculation blower motor fault See your John Deere Dealer
     
20.3 ATC supply voltage high See your John Deere Dealer
     
20.4 ATC supply voltage low See your John Deere Dealer
     
22.1 ATC memory fault See your John Deere Dealer
     
23.2 ATC control unit fault See your John Deere Dealer
     
24.1 ATC CAN bus fault See your John Deere Dealer
     
24.9 ATC CAN Bus fault See your John Deere Dealer
     

 

BB92646,00000AC -19-27SEP05-2/16

Service Code Problem Solution
     
25.5 Compressor shutoff due to engine overheat See your John Deere Dealer
     
26.9 ECU CAN message missing See your John Deere Dealer
     
     
Central Control Unit Service Codes (CCU)
     
CCU 1 Fuel level input open circuit or shorted to more than 12 volts Have your John Deere Dealer repair
     
CCU 4 Fuel flow signal missing (Warning) Fill fuel tank. See FUELS, LUBRICANTS, AND COOLANT SECTION
     
    Have your John Deere Dealer check injection system
     
CCU 5 Engine oil pressure input sensor is out of range low Have your John Deere Dealer repair
     
CCU 6 Diagnostic message from ECU missing Have your John Deere Dealer repair
     
CCU 7 ECU does not match tractor model Have your John Deere Dealer repair
     
CCU 9 Seat switch stuck closed Have your John Deere Dealer repair
     
CCU 10 Engine coolant temperature high Have your John Deere Dealer repair
     
CCU 11 Engine coolant temperature very high Have your John Deere Dealer repair
     
CCU 12, 13 Coolant temperature input open circuit or shorted Have your John Deere Dealer repair
     
CCU 15 Hydraulic oil temperature high (Warning) Check oil level and filter
     
    Clean grille, side screens, radiator and oil cooler
     
CCU 16 Hydraulic oil temperature high (STOP ENGINE) Check oil level and filter
     
    Clean grille, side screens, radiator and oil cooler
     
CCU 17, 18 Hydraulic oil temperature input open circuit or shorted Have your John Deere Dealer repair
     
CCU 19 Hydraulic oil temperature low (throttle speed limited) Operate tractor at idle speed until oil warms up. See HYDRAULIC SYSTEM WARM-UP in the Operating the Tractor Section
     
CCU 20 Engine oil pressure low
(STOP ENGINE)		 Check oil level
     
  Incorrect type of oil Drain, fill crankcase with correct oil. See ENGINE OIL in Fuels, Lubricants and Coolant Section
     
CCU 23 Engine speed signal missing Have your John Deere Dealer repair
     
CCU 24 Clean oil reservoir level switch open circuit Have your John Deere Dealer repair
     
CCU 25 Transmission oil pressure switch circuit open Have your John Deere Dealer repair
     
CCU 26 Transmission oil pressure low (Warning) Check transmission oil level and filter

 

BB92646,00000AC -19-27SEP05-3/16

Service Code Problem Solution
     
     
CCU 29 Axle lube pump pressure switch open circuit Have your John Deere Dealer repair
     
CCU 30 Engine air filter restricted (Warning) Clean or replace filter. See SERVICE AIR CLEANER in the General Maintenance and Inspection Section
     
CCU 33 Transmission oil pressure sensor fault Clean or replace filter. See SERVICE AIR CLEANER in the General Maintenance and Inspection Section
     
CCU 37 Reverse switch circuit open Have your John Deere dealer repair
     
CCU 39 Secondary steering pump is on Have your John Deere dealer repair
     
CCU 40 Secondary steering switch circuit open Have your John Deere dealer repair
     
CCU 45, 46 Low voltage or excessive electrical load (Warning) Check battery. See SERVICING THE BATTERIES in the General Maintenance and Inspection Section
     
    Check belt tensioner. See CHECKING BELT TENSIONER in the General Maintenance and Inspection Section
     
    Reduce electrical load
     
    Have your John Deere Dealer check charging system
     
CCU 47 High voltage (Warning) Replace voltage regulator
     
    Have your John Deere Dealer check charging system
     
CCU 49 High voltage (STOP ENGINE) Replace voltage regulator
     
    Have your John Deere Dealer check charging system
     
CCU 50 Hydraulic oil filter restricted (Warning) Change transmission-hydraulic oil filter
     
CCU 51 Transmission oil filter restricted (Warning) Change transmission oil filter
     
CCU 53 Transmission Hi-Lo solenoid circuit (Warning) If operating Hi-Lo in Lo, bump shift to Hi
     
CCU 55 CCU address 23 configuration invalid Have your John Deere dealer repair
     
CCU 61 Hydraulic oil reservoir level low (STOP ENGINE) Add hydraulic oil. See CHECKING HYDRAULIC OIL LEVEL in the Lubrication Section
     
CCU 64 Axle lube pressure low (STOP ENGINE) Add transmission-hydraulic oil. See CHECKING TRANSMISSION/AXLE OIL LEVEL in the Lubrication Section
     
CCU 65 Axle lube pressure low (Warning) Add transmission-hydraulic oil. See CHECKING TRANSMISSION/AXLE OIL LEVEL in the Lubrication Section
     
    Operate engine with transmission in PARK/NEUTRAL at 2100 rpm at least 5 minutes to warm oil
     
CCU 67 Electrical sensor or circuit Check fuse F14. See LOAD CENTER FUSES in the Maintenance-Electrical System Section

 

BB92646,00000AC -19-27SEP05-4/16

Service Code Problem Solution
     
     
    Have your John Deere Dealer repair
     
CCU 68 PTO overspeed Reduce engine rpm
     
CCU 70 Operator out of seat with PTO engaged (Warning) If not stationary PTO use, return to seat or turn off PTO before leaving cab. See OPERATOR PRESENCE SENSOR in the Operator Station Section
     
CCU 72 CCD CCU Bus fault See your John Deere Dealer for repair
     
CCU 75 Clutch is slipping for excessive time or load Avoid riding clutch pedal
     
CCU 80 Differential lock switch circuit fault Have your John Deere dealer repair
     
CCU 81 Differential lock switch circuit fault Have your John Deere dealer repair
     
CCU 95 Hand throttle command missing Check fuse F3
     
    Have your John Deere Dealer repair as soon as possible
     
CCU 101 Axle lube pressure switch failed closed Have your John Deere Dealer repair
     
CCU 107 IMS not responding due to hitch Have your John Deere Dealer repair
     
CCU 120, 121, 122, 125 Controller fault Have your John Deere Dealer repair
     
     
Engine Control Unit Service Codes (ECU)
     
ECU 10 Cylinder #1 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible
     
ECU 13, 14, 15 Throttle voltage out of range Have your John Deere Dealer repair as soon as possible
     
ECU 20 Cylinder #2 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible
     
ECU 21, 22 Sensor supply voltage out of range Have your John Deere Dealer repair as soon as possible
     
ECU 23, 24 Manifold air temperature input voltage out of range Have your John Deere Dealer repair as soon as possible
     
ECU 25, 26 Coolant temperature input voltage out of range Have your John Deere Dealer repair as soon as possible
     
ECU 27 Throttle position data not valid or not received Have your John Deere Dealer repair as soon as possible
     
  Engine will only idle Have your John Deere Dealer repair as soon as possible
     
ECU 28 ECU error Have your John Deere Dealer repair as soon as possible
     
ECU 29 Torque curve selection invalid Have your John Deere Dealer repair as soon as possible
     
ECU 30 Cylinder #3 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible
     
ECU 31 Cylinder #1 EUI open circuit Have your John Deere Dealer repair as soon as possible
     
ECU 32 Cylinder #2 EUI open circuit Have your John Deere Dealer repair as soon as possible
     
ECU 33 Cylinder #3 EUI open circuit Have your John Deere Dealer repair as soon as possible
     

 

BB92646,00000AC -19-27SEP05-5/16

Service Code Problem Solution
     
ECU 34 Cylinder #4 EUI open circuit Have your John Deere Dealer repair as soon as possible
     
ECU 35 Cylinder #5 EUI open circuit Have your John Deere Dealer repair as soon as possible
     
ECU 36 Cylinder #6 EUI open circuit Have your John Deere Dealer repair as soon as possible
     
ECU 37, 38 Fuel temperature voltage out of range (sensor) - No harm to engine Have your John Deere Dealer repair at earliest convenience
     
  Engine power changes, hard or smoky starting - No harm to engine Have your John Deere Dealer repair at earliest convenience
     
ECU 40 Cylinder #4 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible
     
ECU 41 Crankshaft position input missing Have your John Deere Dealer repair as soon as possible
     
ECU 42 Crankshaft position input noise/pattern error Have your John Deere Dealer repair as soon as possible
     
ECU 43 Pump position sensor input or cam position input missing Have your John Deere Dealer repair as soon as possible
     
ECU 44 Cam position input noise/pattern error Have your John Deere Dealer repair as soon as possible
     
ECU 45 ECU/Pump timing or crank position/cam position out of sync Have your John Deere Dealer repair as soon as possible
     
ECU 50 Fuel rail pressure input voltage high Have your John Deere Dealer repair as soon as possible
     
ECU 51 Fuel rail pressure input voltage low Have your John Deere Dealer repair as soon as possible
     
ECU 57, 58, 59 Fuel supply problem Have your John Deere Dealer repair as soon as possible
     
ECU 60 Cylinder #6 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible
     
ECU 62 Engine coolant temperature moderately high Check for debris restricting radiator air flow, reduce load on engine
     
    Have your John Deere Dealer repair as soon as possible
     
ECU 63 Engine coolant temperature extremely high - Engine damage possible Stop engine
     
    Have your John Deere Dealer repair immediately
     
ECU 66 Manifold air temperature high Check for debris restricting aftercooler air flow
     
    Reduce load on engine
     
    Have your John Deere Dealer repair as soon as possible
     
ECU 67 Engine protection shutdown notification Stop engine
     
    Have your John Deere Dealer repair immediately
     
ECU 68 Engine protection derate notification Have your John Deere Dealer repair as soon as possible
     
ECU 69 Cylinder #5 Electronic injector mechanical failure Have your John Deere Dealer repair as soon as possible

 

BB92646,00000AC -19-27SEP05-6/16

Service Code Problem Solution
     
     
ECU 71 Fuel rail pressure loss detected Have your John Deere Dealer repair as soon as possible
     
ECU 72 Fuel rail pressure not developed Have your John Deere Dealer repair as soon as possible
     
ECU 73 Fuel rail pressure sensor voltage high Have your John Deere Dealer repair as soon as possible
     
ECU 74 Fuel rail pressure sensor voltage low Have your John Deere Dealer repair as soon as possible
     
ECU 75 Water in fuel detected Drain water from separator
     
ECU 76 Water in fuel sensor voltage high or low Have your John Deere Dealer repair as soon as possible
     
ECU 77 Pump control valve #1 error Have your John Deere Dealer repair as soon as possible
     
ECU 78 Fuel rail pressure control error Have your John Deere Dealer repair as soon as possible
     
ECU 79 Pump control valve #2 error Have your John Deere Dealer repair as soon as possible
     
ECU 80 Fuel level low Fill tank with fuel
     
  Fuel temperature high Have your John Deere Dealer repair as soon as possible
     
ECU 84 ECU power down error Have your John Deere Dealer repair as soon as possible
     
  Engine dies and will not restart Have your John Deere Dealer repair as soon as possible
     
ECU 88, 89 Pump control valve fuel flow not detected Have your John Deere Dealer repair as soon as possible
     
  Engine does not start or runs erratically Have your John Deere Dealer repair as soon as possible
     
ECU 90 Fuel rail pressure higher than expected Have your John Deere Dealer repair as soon as possible
     
  Engine does not start or runs erratically Have your John Deere Dealer repair as soon as possible
     
ECU 91 Current problem to injector #1 Have your John Deere Dealer repair as soon as possible
     
ECU 92 Current problem to injector #2 Have your John Deere Dealer repair as soon as possible
     
ECU 93 Current problem to injector #3 Have your John Deere Dealer repair as soon as possible
     
ECU 94 Current problem to injector #4 Have your John Deere Dealer repair as soon as possible
     
ECU 95 Current problem to injector #5 Have your John Deere Dealer repair as soon as possible
     
ECU 96 Current problem to injector #6 Have your John Deere Dealer repair as soon as possible
     
ECU 97 All injector currents out of specification Have your John Deere Dealer repair as soon as possible
     
ECU 98, 99 Injector drive circuit shorted Have your John Deere Dealer repair as soon as possible
     
     
Hitch Control Unit Service Codes (HCU)
     
HCU 22 Battery voltage to hitch, out of range Hitch may not operate correctly. Have your John Deere Dealer repair
     

 

BB92646,00000AC -19-27SEP05-7/16

Service Code Problem Solution
     
HCU 27, 28, 29 Calibration Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 40 Valve harness connections invalid Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 41-44 Hitch valve Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 45 Hitch sensor supply power shorted Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 49 Hitch up/down selector ON while activating external raise/lower switch or moving hitch control lever Restart with hitch up/down selector OFF
     
  Hitch up/down switch circuit failed Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 50 Hitch controller Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 52 Hitch draft sensor input open circuit or shorted Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 53 Hitch load/depth circuit failure (See ACU 53) Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 54 Hitch control lever circuit failure (See ACU 54) Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 55 Hitch position sensor input open circuit or shorted Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 56 Hitch raise limit control (See ACU 56) Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 57 Hitch rate-of-drop control (See ACU 57) Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 58 External raise/lower switch Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 60 Hitch communication failure Restart and cycle hitch
     
    Check fuse F3
     
    Hitch may not operate correctly. Have your John Deere Dealer repair
     
HCU 90 Low hydraulic oil level Add hydraulic oil. (See Lubrication Section)
     
     
Instrument Control Unit Service Codes (ICU)
     
ICU 94 Membrane switch stuck Have your John Deere Dealer repair as soon as possible
     
ICU 95 Communication link missing Check fuse F1

 

BB92646,00000AC -19-27SEP05-8/16

Service Code Problem Solution
     
     
    Have your John Deere Dealer repair as soon as possible
     
ICU 96 Air-brake pressure low Have your John Deere Dealer repair as soon as possible
     
ICU 98 Transmission come home mode Have your John Deere Dealer repair as soon as possible
     
ICU 99 Vehicle monitor memory failure Have your John Deere Dealer replace as soon as possible
     
     
John Deere Link Service Codes (JDL)
     
JDL 1 Control unit configuration and machine PIN conflict Have your John Deere Dealer repair as soon as possible
     
JDL 2 Control unit power limit exceeded Have your John Deere Dealer repair as soon as possible
     
JDL 3 Control unit memory capacity exceeded Have your John Deere Dealer repair as soon as possible
     
JDL 4 CCD Bus fault Have your John Deere Dealer repair as soon as possible
     
JDL 5 CAN Bus fault Have your John Deere Dealer repair as soon as possible
     
JDL 6 Control unit voltage low Have your John Deere Dealer repair as soon as possible
     
JDL 7 Control unit fault Have your John Deere Dealer repair as soon as possible
     
JDL 8 Invalid time date Have your John Deere Dealer repair as soon as possible
     
JDL 10 Machine data configuration fault 1 Have your John Deere Dealer repair as soon as possible
     
JDL 11 Machine data configuration fault 2 Have your John Deere Dealer repair as soon as possible
     
JDL 12 Machine data configuration fault 3 Have your John Deere Dealer repair as soon as possible
     
JDL 13 Machine data configuration fault 4 Have your John Deere Dealer repair as soon as possible
     
JDL 14 Machine data configuration fault 5 Have your John Deere Dealer repair as soon as possible
     
JDL 15 Calibration memory fault Have your John Deere Dealer repair as soon as possible
     
JDL 16 GPS not available Signal strength weak
     
JDL 17 GPS fault Have your John Deere Dealer repair as soon as possible
     
JDL 18 JDL CAN error limit exceeded Have your John Deere Dealer repair as soon as possible
     
JDL 50 GPS lock fault Indicates machine has moved under an obstacle
     
JDL 52 GPS lock loss Indicates machine has moved under an obstacle
     
JDL 54 GPS antenna/cable fault Indicates machine has moved under an obstacle
     
JDL 60 Call unanswered Indicates a call-in attempt has failed
     
JDL 63 Call disconnected Indicates connection was dropped before all data had been transferred
     

 

BB92646,00000AC -19-27SEP05-9/16

Service Code Problem Solution
     
JDL 64 Cellular signal weak or no service Indicates connection was dropped before all data had been transferred
     
JDL 65 Cellular data bit error rate too high Have your John Deere dealer repair as soon as possible
     
JDL 66 Cellular personal identification number blocked Indicates personal identification number was not received by cellular service
     
JDL 67 Communications service identification module fault Indicates a service identification module failure has occurred
     
JDL 68 Line busy Indicates service is not available at present time
     
JDL 69 Data exchange fault Indicates connection was dropped before all data had been transferred
     
JDL 70 Modem fault Indicates a modem failure has occurred
     
JDL 71 Data upload fault Indicates a data transfer error has occurred during a connection
     
JDL 72 Data download fault Indicates a data transfer error has occurred during a connection
     
     
Powershift Control Unit Service Codes (PCU)
     
PCU 006 Engine speed too high to start a downshift Reduce engine speed until downshift is permitted. Only one downshift will be granted after the engine speed is sufficiently reduced
     
PCU 013 Park commanded, park brake pressure remains high Allow tractor hydraulic system to warm up
     
    Have your John Deere Dealer repair
     
PCU 017 Operator out of seat with transmission in neutral Put tractor in park before leaving seat, or remain in seat while tractor is in neutral
     
    Operator too light to engage presence switch, or operator not positioned squarely in seat
     
PCU 018 Secondary park brake set while in gear Have your John Deere Dealer repair
     
PCU 019 Park brake pressure sensor circuit open or shorted to ground Have your John Deere Dealer repair
     
PCU 020 Park brake pressure sensor shorted to power Have your John Deere Dealer repair
     
PCU 021 Clutch pedal top and bottom switch circuit conflict Have your John Deere Dealer repair
     
PCU 022 Clutch pedal sensor circuit fault Have your John Deere Dealer repair
     
PCU 023 Clutch pedal potentiometer out of range Have your John Deere Dealer repair
     
PCU 024 Park brake previously detected not working Have your John Deere Dealer repair
     
PCU 025 Park brake not holding Have your John Deere Dealer repair

 

BB92646,00000AC -19-27SEP05-10/16

Service Code Problem Solution
     
     
PCU 026 Tractor moving, park inhibited Reduce speed below 470 rpm, approximately 2 km/h (1.2 mph)
     
PCU 027 Transmission not calibrated Have your John Deere Dealer repair
     
PCU 028 Clutch partially engaged too long Do not partially depress clutch pedal while the tractor is in gear for a period of time
     
PCU 029 Park brake will not release Have your John Deere Dealer repair
     
PCU 031 Clutch partially engaged Do not partially depress clutch pedal while the tractor is in gear for a period of time, potential clutch damage may occur
     
PCU 032 Clutch 1 solenoid circuit fault - current too low Have your John Deere Dealer repair
     
PCU 033 Clutch 1 solenoid circuit fault - current too high Have your John Deere Dealer repair
     
PCU 034 Clutch 2 solenoid circuit fault - current too low Have your John Deere Dealer repair
     
PCU 035 Clutch 2 solenoid circuit fault - current too high Have your John Deere Dealer repair
     
PCU 036 Clutch R solenoid circuit fault - current too low Have your John Deere Dealer repair
     
PCU 037 Clutch R solenoid circuit fault - current too high Have your John Deere Dealer repair
     
PCU 038 Checksum error detected in diagnostic mode Have your John Deere Dealer repair
     
PCU 039 A reverse enable fault Have your John Deere Dealer repair
     
PCU 040 Forward enable circuit fault Have your John Deere Dealer repair
     
PCU 041 Forward and Reverse enable circuits conflict Have your John Deere Dealer repair
     
PCU 042, 043, 044 Gear command and enable circuits conflict Have your John Deere Dealer repair
     
PCU 045 Gear command and not-neutral signal conflict Have your John Deere Dealer repair
     
PCU 046 Neutral or park commanded / forward or reverse enabled Have your John Deere Dealer repair
     
PCU 047 Calibration fault Have your John Deere Dealer repair
     
PCU 048 PCU supply voltage low with engine running Have your John Deere Dealer repair
     
PCU 049 ACU commanding a gear, but clutch override relay input is low Have your John Deere Dealer repair
     
PCU 050 Gear command with engine off Have your John Deere Dealer repair
     
PCU 051 No tractor motion with engine running Have your John Deere Dealer repair
     
PCU 053, 054, 055 Transmission oil pressure low, Sensor shorted to power or ground Have your John Deere Dealer repair
     
PCU 056 Park solenoid #1 circuit fault Have your John Deere Dealer repair

 

BB92646,00000AC -19-27SEP05-11/16

Service Code Problem Solution
     
     
PCU 062 Neutral-to-gear shift requested, operator not in seat Sit in seat to shift tractor
     
PCU 064 Shuttle shift with excessive ground speed Move shift lever to N, and reduce ground speed, then shuttle shift. See SHIFTING THE TRANSMISSION
     
PCU 065 EOL checksum error during normal operation Have your John Deere Dealer repair
     
PCU 066 Shift lever in gear at start-up Turn key off, return shift lever to park, turn key back on, or return shift lever to NEUTRAL before making shift request
     
PCU 067 Start in gear circuit fault Possible attempt to "bypass start"
     
PCU 069 Calibration data for one or more clutches exceeds normal limits Have your John Deere Dealer repair
     
PCU 070 PCU not receiving gear commands from ACU Have your John Deere Dealer repair
     
PCU 071 CAN bus communication missing Have your John Deere Dealer repair
     
PCU 072 RAM test failure Have your John Deere Dealer repair
     
PCU 073 Serial EPROM test failure Restart engine to clear code
     
    Have your John Deere Dealer repair
     
PCU 074 Software watchdog time-out / bad power down Restart engine to clear code
     
    Have your John Deere Dealer repair
     
PCU 076 Transmission input speed does not match engine speed data Have your John Deere Dealer repair
     
PCU 077 Transmission 2nd stage speed sensor data conflict Have your John Deere Dealer repair
     
PCU 078 Transmission 5th stage speed sensor data conflict Have your John Deere Dealer repair
     
PCU 079 Transmission output speed sensor #1 data conflict Have your John Deere Dealer repair
     
PCU 080 Park solenoid #2 output fault Have your John Deere Dealer repair
     
PCU 081 Output speed sensors disagree - no speed from output #2 Have your John Deere Dealer repair
     
PCU 082 Park brake backup control unit conflict Have your John Deere Dealer repair
     
PCU 083, 084, 085, 086, 087, 088, 089, 090, 091, 092, 093, 094 Clutch A , B, C, L, M, H, solenoid circuit fault Have your John Deere Dealer repair
     
PCU 095, 096 Transmission oil temperature too high. 095 (Warning), 096 (Stop engine) Check Transmission fluid level
     
    Allow transmission to cool before continuing operation
     
    Have your John Deere Dealer repair

 

BB92646,00000AC -19-27SEP05-12/16

Service Code Problem Solution
     
     
PCU 097, 098 Transmission oil temperature sensor faulty Have your John Deere Dealer repair
     
PCU 099 Invalid gear request received Have your John Deere Dealer repair
     
     
Optional SCV Control Unit Service Codes (SCo)
     
SCo 22 SCo supply voltage fault Have your John Deere Dealer repair
     
SCo 27 Calibration incomplete Have your John Deere Dealer repair
     
SCo 28 SCo not calibrated Have your John Deere Dealer repair
     
SCo 29 Calibration selected for less than 30 seconds Have your John Deere Dealer repair
     
SCo 40 Valve harness connections invalid Have your John Deere Dealer repair
     
SCo 60 SCV levers inoperative, SCV communication link Stop and restart engine
     
    Have your John Deere Dealer repair
     
SCo 90 Low hydraulic oil level Add hydraulic oil. See Lubrication Section
     
SCo 98 Option PIN configuration invalid at start-up Stop engine and restart
     
SCo 99 SCo option connection change Remove jumper harness
     
SCo 100 Operator not in seat with SCV in detented flow with transmission in NEUTRAL position (Warning) If not stationary SCV use, return to seat or move SCV lever to neutral before leaving cab. See the Operator Station Section
     
SCo 140, 141, 142, 143, 144 SCV 4 not working Have your John Deere Dealer repair
     
SCo 145 Insufficient current for SCV 4 float Have your John Deere Dealer repair
     
SCo 150, 151, 152, 153, 154 SCV 5 not working Have your John Deere Dealer repair
     
SCo 155 Insufficient current for SCV 5 float Have your John Deere Dealer repair
     
     
SCV Control Unit Service Codes (SCU)
     
SCU 22 SCU supply voltage fault Have your John Deere Dealer repair
     
SCU 23 Battery voltage to SCV controller out of range Check fuse F6
     
  SCV may not operate as normally expected Have your John Deere Dealer repair
     
SCU 27, 28, 29 SCV 1, or 3 not working correctly Have your John Deere Dealer repair
     
  Controller calibration Have your John Deere Dealer repair
     
SCU 40 Valve harness connections invalid Have your John Deere Dealer repair
     
SCU 45 Implement sensor supply power shorted Have your John Deere Dealer repair

 

BB92646,00000AC -19-27SEP05-13/16

Service Code Problem Solution
     
     
  Hitch may not operate as normally expected Have your John Deere Dealer repair
     
SCU 47 Hitch following sensor fault Have your John Deere Dealer repair
     
SCU 48, 49 Remote position sensor circuit failure Check implement position sensor connection when using SCV depth control (EHDC)
     
    Have your John Deere Dealer repair
     
SCU 60 SCV communication link failure Stop and restart engine
     
    Have your John Deere Dealer repair
     
SCU 61 No data from external device Have your John Deere Dealer repair
     
SCU 90 Low hydraulic oil level Add hydraulic oil. See Lubrication Section
     
SCU 98 Remote control system configuration failed Check implement connections when using SCV implement control
     
    Must start tractor with implement connector disconnected to reset
     
SCU 99 Remote control system configuration failed Check implement connections when using SCV implement control
     
SCU 100 Operator not in seat with SCV in detented flow and transmission in neutral (Warning) If not stationary SCV use, return to seat or move SCV lever to Neutral before leaving cab. See OPERATOR PRESENCE SENSOR in the Operator Station Section
     
SCU 101 Automatic control of implement using SCV 1 has been cancelled (Warning) Reactivate automatic control with SCV 1 lever when using SCV implement control
     
SCU 102 Automatic control of implement using SCV 3 has been cancelled (Warning) Reactivate automatic control with SCV 3 lever when using SCV implement control
     
SCU 103 Cancellation of external control Have your John Deere Dealer repair
     
SCU 109 External command failure indication Have your John Deere Dealer repair
     
SCU 110-114 SCV 1 not working correctly Have your John Deere Dealer repair
     
SCU 115 Insufficient current for SCV 1 float Have your John Deere Dealer repair
     
SCU 120-124 SCV 2 not working correctly Have your John Deere Dealer repair
     
SCU 125 Insufficient current for SCV 2 float Have your John Deere Dealer repair
     
SCU 130-134 SCV 3 not working correctly Have your John Deere Dealer repair
     
SCU 135 Insufficient current for SCV 3 float Have your John Deere Dealer repair
     
     
Steering Control Unit Service Codes (SSU)
     

 

BB92646,00000AC -19-27SEP05-14/16

Service Code Problem Solution
     
SSU 1, 2 Steering controller Steering operation can be erratic. See your John Deere dealer
     
SSU 3 Steering controller (STOP ENGINE) Steering operation can be erratic. See your John Deere dealer
     
SSU 15, 16 Transmission / steering oil temperature out of range Have your John Deere dealer repair
     
SSU 17 Open circuit in transmission / steering oil temperature sensor Have your John Deere dealer repair
     
SSU 18 Grounded circuit in transmission / steering oil temperature sensor Have your John Deere dealer repair
     
SSU 24 Build date code mismatch Add solution description based on the serial number break. See your John Deere dealer
     
SSU 26 No or limited steering. Calibration (STOP ENGINE) Steering operation can be erratic. See your John Deere dealer
     
SSU 27 Low response or limited steering. Calibration Steering operation can be erratic. See your John Deere dealer
     
SSU 28, 29 No or limited steering. Calibration (WARNING) Steering operation can be erratic. See your John Deere dealer
     
SSU 30, 31 Track tension and motor speed sensors supply power shorted Steering operation can be erratic. See your John Deere dealer
     
SSU 34, 35 Power circuit failure Have your John Deere dealer repair
     
SSU 36, 37 Park switch circuit malfunction Have your John Deere dealer repair
     
SSU 38, 39 Gear / Park switch output interference Have your John Deere dealer repair
     
SSU 40-64 Steering wheel input sensor malfunction (WARNING) Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 70 Steering wheel input sensor failure (STOP ENGINE) Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 75, 76 Steering wheel input sensor malfunction Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 78 Steering wheel input sensor (WARNING) Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 80, 81 Left track tension pressure low or sensor malfunction (WARNING) Re-tension track. See your John Deere dealer
     
SSU 82, 83 Left track tension pressure too high or sensor malfunction Re-tension track. See your John Deere dealer
     
SSU 90, 91 Right track tension pressure low or sensor malfunction Re-tension track. See your John Deere dealer
     

 

BB92646,00000AC -19-27SEP05-15/16

Service Code Problem Solution
     
SSU 92, 93 Right track tension pressure too high or sensor malfunction Re-tension track. See your John Deere dealer
     
SSU 110, 120 Steering pump solenoid malfunction (STOP ENGINE) Steering operation can be erratic. See your John Deere dealer
     
SSU 140 Steering system filter restricted (WARNING) Replace steering system filter. (See REPLACING STEERING PUMP FILTER, in the Lubrication Section)
     
SSU 142 Case pressure switch open circuit fault See your John Deere dealer
     
SSU 143 Low steering charge flow See your John Deere dealer
     
SSU 144 Case pressure switch short circuit or plugged steering return screen See your John Deere dealer
     
SSU 150, 151, 154 Steering motor speed / direction sensor malfunction (WARNING) Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 164 Wheel speed signal missing (WARNING) Steering operation can be erratic. Have your John Deere dealer repair
     
SSU 207 Communication failure (WARNING) Stop and restart engine
     
    Check fuse F1
     
    Steering operation can be erratic. See your John Deere dealer
     
SSU 234 Steering motor motion detected when transmission in PARK (STOP ENGINE) Turn key switch OFF
     
     
SCV Setup Panel Service Codes (SUP)
     
SUP 10 SCV 1, 2, or 3 display incorrect, SCV communication link Check fuse F5, F6, F7
     
    Have your John Deere Dealer repair
     
SUP 11 SCV 4 or 5 display incorrect, SCV communication link Have your John Deere Dealer repair
     
SUP 20 Setup panel controller failure Have your John Deere Dealer repair
     
     
Heated Leather Seat Service Codes (LED Display) (if equipped)
     
LED ON longer than OFF Heating wire failure Have your John Deere Dealer repair
     
LED OFF longer than ON Temperature sensor failure Have your John Deere Dealer repair

 

BB92646,00000AC -19-27SEP05-16/16