There are a few Harley Davidson fault codes that you may encounter. In 1982, the Harley Davidson Motor Company began using a standardized diagnostic system for their motorcycles. This system is known as DTCs, or Diagnostic Trouble Codes. DTCs are designated by a P,C,B or U. The letter denotes the system that the code is related to. For example, a P code is a Powertrain code, while a U code is a Utility code.

The most common Harley trouble codes are:

P0171- System Too Lean

P0174- System Too Rich

P1399- CKP Sensor Intermittent

U0300- Lost Communication With ECM/PCM

If your Harley Davidson experiences any of these faults, don’t panic! There are ways to troubleshoot and hopefully repair them. The first step is to research the code and see what it means. There are many online resources that can help with this, including Harley Davidson’s own website. Once you have an idea of what might be causing the problem, you can start troubleshooting.

What are the Harley Trouble codes and Their Solution

DTCPRIORITY ORDERFAULT CONDITIONSOLUTION
B110347LHCM internal errorSWITCH DIAGNOSTICS
B115346RHCM internal errorSWITCH DIAGNOSTICS
B120037IM internal faultNO INSTRUMENT POWER DIAGNOSTICS
B1210176Fuel level sender shorted low/openFUEL GAUGE AND SENDER DIAGNOSTICS
B1211182Fuel level sender shorted highFUEL GAUGE AND SENDER DIAGNOSTICS
B1212175Fuel signal lowFUEL GAUGE AND SENDER DIAGNOSTICS
B1213176Fuel signal highFUEL GAUGE AND SENDER DIAGNOSTICS
B1300340Radio voltage highAUDIO VOLTAGE DIAGNOSTICS
B1301341Radio voltage lowAUDIO VOLTAGE DIAGNOSTICS
B1302342Faceplate home button stuckFACEPLATE BUTTON DIAGNOSTICS
B1303343Faceplate favorite button stuckFACEPLATE BUTTON DIAGNOSTICS
B1304344Faceplate navigation button stuckFACEPLATE BUTTON DIAGNOSTICS
B1305345Faceplate power/mute button stuckFACEPLATE BUTTON DIAGNOSTICS
B1306399Rear hand controls shorted highREAR AUDIO CONTROL DIAGNOSTICS
81307400Rear hand controls shorted lowREAR AUDIO CONTROL DIAGNOSTICS
81308401Rear volume up button stuckREAR AUDIO CONTROL DIAGNOSTICS
B1309402Rear volume down button stuckREAR AUDIO CONTROL DIAGNOSTICS
B1310403Rear mode button stuckREAR AUDIO CONTROL DIAGNOSTICS
81311404Rear PTT button stuckREAR AUDIO CONTROL DIAGNOSTICS
B1312405Rear tune up button stuckREAR AUDIO CONTROL DIAGNOSTICS
B1313406Rear tune down button stuckREAR AUDIO CONTROL DIAGNOSTICS
B1314346LHCM VR PTT button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1315347LHCM up button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1316348LHCM left button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1317349LHCM center button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1318350LHCM right button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1319351LHCM down button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1320352RHCM info button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1321353RHCM up button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1322354RHCM left button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1323355RHCM center button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1324356RHCM right button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1325357RHCM down button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1326358RHCM CB squelch up button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1327359RHCM CB PTT button stuckFRONT HAND CONTROLS DIAGNOSTICS
B1328360RHCM CB squelch down button stuckFRONT HAND CONTROLS DIAGNOSTICS
81329361Faceplate preset button 1 stuckFACEPLATE BUTTON DIAGNOSTICS
B1330362Faceplate preset button 2 stuckFACEPLATE BUTTON DIAGNOSTICS
B1331363Faceplate preset button 3 stuckFACEPLATE BUTTON DIAGNOSTICS
B1332364Faceplate preset button 4 stuckFACEPLATE BUTTON DIAGNOSTICS
81333365Faceplate preset button 5 stuckFACEPLATE BUTTON DIAGNOSTICS
B1334366Faceplate preset button 6 stuckFACEPLATE BUTTON DIAGNOSTICS
B1335367Faceplate preset button 7 stuckFACEPLATE BUTTON DIAGNOSTICS
B1336368Faceplate preset button 8 stuckFACEPLATE BUTTON DIAGNOSTICS
B1337369Front left speaker shorted togetherFRONT SPEAKER DIAGNOSTICS
B1338370Front left speaker openFRONT SPEAKER DIAGNOSTICS
B1339371Front left speaker shorted lowFRONT SPEAKER DIAGNOSTICS
B1340372Front left speaker shorted highFRONT SPEAKER DIAGNOSTICS
B1341373Rear left speaker shorted togetherREAR SPEAKER DIAGNOSTICS
B1342374Rear left speaker openREAR SPEAKER DIAGNOSTICS
B1343375Rear left speaker shorted lowREAR SPEAKER DIAGNOSTICS
B1344376Rear left speaker shorted highREAR SPEAKER DIAGNOSTICS
B1345377Front right speaker shorted togetherFRONT SPEAKER DIAGNOSTICS
B1346378Front right speaker openFRONT SPEAKER DIAGNOSTICS
B1347379Front right speaker shorted lowFRONT SPEAKER DIAGNOSTICS
B1348380Front right speaker shorted highFRONT SPEAKER DIAGNOSTICS
B1349381Rear right speaker shorted togetherREAR SPEAKER DIAGNOSTICS
B1350382Rear right speaker openREAR SPEAKER DIAGNOSTICS
B1351383Rear right speaker shorted lowREAR SPEAKER DIAGNOSTICS
81352384Rear right speaker shorted highREAR SPEAKER DIAGNOSTICS
B1353385Speaker outputDC offset DTC B1353
B1354386GPS antenna openSECURITY ANTENNA DIAGNOSTICS
B1355387GPS antenna shorted lowSECURITY ANTENNA DIAGNOSTICS
B1356388SDARS antenna openSECURITY ANTENNA DIAGNOSTICS
B1357389SDARS antenna shortedSECURITY ANTENNA DIAGNOSTICS
B1358390Front left headset shorted highHEADSET DTCS
B1359391Front right headset shorted highHEADSET DTCS
B1360392Front left headset shorted lowHEADSET DTCS
B1361393Front right headset shorted lowHEADSET DTCS
B1362394Rear left headset shorted highHEADSET DTCS
B1363395Rear right headset shorted highHEADSET DTCS
B1364396Rear left headset shorted lowHEADSET DTCS
81365397Rear right headset shorted lowHEADSET DTCS
B1366398Internal thermal shutdown errorDTC 81366
B1367451WIM fault detectedCode used to support P&A parts.
B1401407Amp voltage lowAUDIO VOLTAGE DIAGNOSTICS
B1402408Amp voltage highAUDIO VOLTAGE DIAGNOSTICS
81403409Speaker output DC offsetAMPLIFIER 1 DTCS
B1404410Internal thermal shutdown errorAMPLIFIER 1 DTCS
B1405427EQ correlation errorAUDIO SYSTEM SYMPTOMS
81406428Invalid or missing EQAUDIO SYSTEM SYMPTOMS
B1410411Channel 1 speaker openAMPLIFIER 1 DTCS
B1411412Channel 1 speaker shorted lowAMPLIFIER 1 DTCS
B1412413Channel 1 speaker shorted highAMPLIFIER 1 DTCS
B1413414Channel 1 speaker shorted togetherAMPLIFIER 1 DTCS
B1420415Channel 2 speaker openAMPLIFIER 1 DTCS
B1421416Channel 2 speaker shorted lowAMPLIFIER 1 DTCS
B1422417Channel 2 speaker shorted highAMPLIFIER 1 DTCS
B1423418Channel 2 speaker shorted togetherAMPLIFIER 1 DTCS
B1430419Channel 3 speaker openAMPLIFIER 1 DTCS
B1431420Channel 3 speaker shorted lowAMPLIFIER 1 DTCS
B1432421Channel 3 speaker shorted highAMPLIFIER 1 DTCS
81433422Channel 3 speaker shorted togetherAMPLIFIER 1 DTCS
B1440423Channel 4 speaker openAMPLIFIER 1 DTCS
B1441424Channel 4 speaker shorted lowAMPLIFIER 1 DTCS
B1442425Channel 4 speaker shorted highAMPLIFIER 1 DTCS
B1443426Channel 4 speaker shorted togetherAMPLIFIER 1 DTCS
B21024System power output shorted highSYSTEM POWER CIRCUIT DIAGNOSTICS
B21035System power output shorted lowSYSTEM POWER CIRCUIT DIAGNOSTICS
B21046System power output over- loadedSYSTEM POWER CIRCUIT DIAGNOSTICS
B2106257L4 open outputHEADLAMP DIAGNOSTICS
B2107225L4 output shorted highHEADLAMP DIAGNOSTICS
B2108226L4 output shorted lowHEADLAMP DIAGNOSTICS
B2109227L4 output overloadedHEADLAMP DIAGNOSTICS
B2112132ACC output shorted highACC CIRCUIT DIAGNOSTICS
B2113134ACC output shorted lowACC CIRCUIT DIAGNOSTICS
B2114136ACC output overloadedACC CIRCUIT DIAGNOSTICS
B211692Fuel pump output openFUEL PUMP DIAGNOSTICS
B211793Fuel pump output shorted highFUEL PUMP DIAGNOSTICS
B211894Fuel pump output shorted lowFUEL PUMP DIAGNOSTICS
B211995Fuel pump output overloadedFUEL PUMP DIAGNOSTICS
B212158Starter output openSTARTER OUTPUT DTCS
B212259Starter output shorted highSTARTER OUTPUT DTCS
B212360Starter output shorted lowSTARTER OUTPUT DTCS
B212461Starter output overloadedSTARTER OUTPUT DTCS
B2127243E4 output shorted highHORN DIAGNOSTICS
B2128244E4 output shorted lowHORN DIAGNOSTICS
B2129245E4 output overloadedHORN DIAGNOSTICS
B2131233High beam open outputHEADLAMP DIAGNOSTICS
B2132234High beam output shorted highHEADLAMP DIAGNOSTICS
B2133235High beam output shorted lowHEADLAMP DIAGNOSTICS
B2134236High beam output overloadedHEADLAMP DIAGNOSTICS
B2136229Low beam open outputHEADLAMP DIAGNOSTICS
B2137230Low beam output shorted highHEADLAMP DIAGNOSTICS
B2138231Low beam output shorted lowHEADLAMP DIAGNOSTICS
B2139232Low beam output overloadedHEADLAMP DIAGNOSTICS
B2141207Left front turn signal output openFRONT TURN SIGNAL DIAGNOSTICS
B2143214Left front turn signal output shorted lowFRONT TURN SIGNAL DIAGNOST ICS
B2144215Left front turn signal output overloadedFRONT TURN SIGNAL DIAGNOST ICS
B2146216Right front turn signal output openFRONT TURN SIGNAL DIAGNOSTICS
B2148217Right front turn signal output shorted lowFRONT TURN SIGNAL DIAGNOST ICS
B2149218Right front turn signal output overloadedFRONT TURN SIGNAL DIAGNOST ICS
82151219Left rear turn signal output openREAR TURN SIGNAL DIAGNOSTICS
82153220Left rear turn signal output shorted lowREAR TURN SIGNAL DIAGNOST ICS
B2154221Left rear turn signal output overloadedREAR TURN SIGNAL DIAGNOSTICS
B2156222Right rear turn signal output openREAR TURN SIGNAL DIAGNOSTICS
B2158223Right rear turn signal output shorted lowREAR TURN SIGNAL DIAGNOST ICS
B2159224Right rear turn signal output overloaderREAR TURN SIGNAL DIAGNOST ICS
B2161198Brake lamp output openSTOP LAMP DIAGNOSTICS
B2163199Brake lamp output shorted lowSTOP LAMP DIAGNOSTICS
B2164200Brake lamp output overloadedSTOP LAMP DIAGNOSTICS
B2168172Running lights output shorted lowRUNNING LAMP DIAGNOSTICS
B2169173Running lights output over-loadedRUNNING LAMP DIAGNOSTICS
B2172237H2 output shorted highALARM DIAGNOSTICS
B2173238H2 output shorted lowALARM DIAGNOSTICS
82176239Security antenna output openSECURITY ANTENNA DIAGNOSTICS
B2177240Security antenna output shorted highSECURITY ANTENNA DIAGNOSTICS
B2178241Security antenna output shorted lowSECURITY ANTENNA DIAGNOSTICS
B2183249G2 output shorted lowADDITIONAL OUTPUT DIAGNOSTICS
B2188254G3 output shorted lowADDITIONAL OUTPUT DIAGNOSTICS
B2193257H4 output shorted lowADDITIONAL OUTPUT DIAGNOSTICS
B2198259H3 output shorted lowADDITIONAL OUTPUT DIAGNOSTICS
B220152IGN switch off w/VSSIGN SWITCH DIAGNOSTICS
B220253Ignition switch accy with vehicle speedIGN SWITCH DIAGNOSTICS
B220350Ignition switch input shorted lowIGN SWITCH DIAGNOSTICS
B220651Run/stop switch input open/shorted highENGINE STOP SWITCH DIAGNOSTICS
B220854Run/stop switch input shorted lowENGINE STOP SWITCH DIAGNOSTICS
B221055Run/stop switch inputs open bothSWITCH DIAGNOSTICS
B221256Run/stop switch inputs both closedSWITCH DIAGNOSTICS
82218131Neutral switch shorted lowNEUTRAL SWITCH DIAGNOSTICS
B2223197Rear brake switch shorted low (light on)STOP LAMP DIAGNOSTICS
B2226247BAS input openBCM not configured properly.
B2228250BAS input shorted lowBCM not configured properly.
B2231312Fork locked w/VSSBCM not configured properly. This DTC should only apply to CVO models.
B2232313Fork lock shorted highBCM not configured properly. This DTC should only apply to CVO models.
B2233314Fork lock shorted lowBCM not configured properly. This DTC should only apply to CVO models.
B2234315Fork lock detected w/option disabledBCM not configured properly. This DTC should only apply to CVO models.
B2235316Fork lock configuration invalidBCM not configured properly. This DTC should only apply to CVO models.
B2250128Clutch switch stuckSWITCH DIAGNOSTICS
B2251242Horn switch stuckSWITCH DIAGNOSTICS
B2252437High beam switch stuckSWITCH DIAGNOSTICS
B2253228FTP switch stuckSWITCH DIAGNOSTICS
B2254203Left turn switch stuckSWITCH DIAGNOSTICS
B2255246Trip switch stuckTrip Odometer Functions Inoperative, DTC 82255
B2256208LHCM police siren power switch stuckBCM not configured properly. This DTC should only apply to Police models.
B2257209LHCM police siren wail power switch stuckBCM not configured properly. This DTC should only apply to Police models.
B2258210LHCM police siren yelp switch stuckBCM not configured properly. This DTC should only apply to Police models.
B226057Start switch stuckSWITCH DIAGNOSTICS
B2261204Right switch stuck turnSWITCH DIAGNOSTICS
B2262196Front switch stuck brakeSWITCH DIAGNOSTICS
B2263202Hazard switch stuckSWITCH DIAGNOSTICS
B2264211RHCM police lights power switch stuckBCM not configured properly. This DTC should only apply to Police models.
B2265212RHCM police lights front switch stuckBCM not configured properly. This DTC should only apply to Police models.
B2266213RHCM police lights rear switch stuckBCM not configured properly. This DTCshould only apply to Police models.
B227027BCM internal errorSWITCH DIAGNOSTICS
B227126BCM voltage lowBCM VOLTAGE DIAGNOSTICS
B227233BCM/IM voltage highBCM VOLTAGE DIAGNOSTICS
B227449Constant battery line errorOdometer Self-Diagnostic Inoperative: DTC 00001, 00002, U0011, B2274
C056238ABS voltage lowABS VOLTAGE DIAGNOSTICS
C056340ABS voltage highABS VOLTAGE DIAGNOSTICS
C1014183ABS ECU relay errorINTERNAL FAULT DIAGNOSTICS
C1021191ABS front WSS always zeroWSS DIAGNOSTICS
C1023192ABS rear WSS always zeroWSS DIAGNOSTICS
C1025194ABS front wheel speed intermittentWSS DIAGNOSTICS
C1027195ABS rear wheel speed intermittentWSS DIAGNOSTICS
C1029193ABS wheel speed difference too highWSS DIAGNOSTICS
C1032189ABS front wheel speed circuit open shortedWSS DIAGNOSTICS
C1034190ABS rear wheel speed circuit open shortedWSS DIAGNOSTICS
C1040184ABS pump/motor errorINTERNAL FAULT DIAGNOSTICS
C105539ABS ECU internal errorINTERNAL FAULT DIAGNOSTICS
C1061185ABS front apply solenoid circuit open/high resistanceINTERNAL FAULT DIAGNOSTICS
C1062187ABS front release solenoid circuit open/high resistanceINTERNAL FAULT DIAGNOSTICS
C1065186ABS rear apply solenoid circuit open/high resistanceINTERNAL FAULT DIAGNOSTICS
C1066188ABS rear release solenoid circuit open/high resistanceINTERNAL FAULT DIAGNOSTICS
C1071283Rear prime valve errorINTERNAL FAULT DIAGNOSTICS
C1072284Rear isolation valve errorINTERNAL FAULT DIAGNOSTICS
C1073285Front isolation valve errorINTERNAL FAULT DIAGNOSTICS
C1074286Front prime valve errorINTERNAL FAULT DIAGNOSTICS
C1075287Front linked inlet valve errorINTERNAL FAULT DIAGNOSTICS
C1076288Front linked outlet valve errorINTERNAL FAULT DIAGNOSTICS
C1077289Front circuit pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1078290Rear circuit pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1081291Front master pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1082292Front master pressure sensor offset errorINTERNAL FAULT DIAGNOSTICS
C1083293Front wheel pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1084294Front wheel pressure sensor offset errorINTERNAL FAULT DIAGNOSTICS
C1085295Rear master pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1086296Rear master pressure sensor offset errorINTERNAL FAULT DIAGNOSTICS
C1087297Rear wheel pressure sensor errorINTERNAL FAULT DIAGNOSTICS
C1088298Rear wheel pressure sensor offset errorINTERNAL FAULT DIAGNOSTICS
C1089299Pressure sensor external supply errorINTERNAL FAULT DIAGNOSTICS
C115943ABS invalid storedVIN INVALID VIN DIAGNOSTICS
C117841ABS no VIN received fromECM INVALID VIN DIAGNOSTICS
C118442ABS invalid VIN fromECM INVALID VIN DIAGNOSTICS
C1195266Wake up errorINTERNAL FAULT DIAGNOSTICS
P0031153Front HO2S open lowHO2S DIAGNOSTICS
P0032156Front HO2S shorted highHO2S DIAGNOSTICS
P0051154Rear HO2S open lowHO2S DIAGNOSTICS
P0052155Rear HO2S shorted highHO2S DIAGNOSTICS
P0072112AAT sensor lowAAT SENSOR DIAGNOSTICS
P0073113AAT sensor high openMT SENSOR DIAGNOSTICS
P0107100MAP sensor failed low openTMAP SENSOR DIAGNOSTICS
P0108101MAP sensor failed high/open portTMAP SENSOR DIAGNOSTICS
P0112123IAT sensor shorted lowTMAP SENSOR DIAGNOSTICS
P0113125IAT sensor high openTMAP SENSOR DIAGNOSTICS
P0117102ET sensor shorted lowET SENSOR DIAGNOSTICS
P0118107ET sensor high openET SENSOR DIAGNOSTICS
P012076TPS 1 range errorTCA DIAGNOSTICS
P012274TPS 1 lowTCA DIAGNOSTICS
P012375TPS 1 high openTCA DIAGNOSTICS
P013115702 sensor low/engine lean (front)HO2S DIAGNOSTICS
P0132159Engine running rich (front)HO2S DIAGNOSTICS
P0134161Oxygen sensor high/open (front)HO2S DIAGNOSTICS
P015115802 sensor low/engine lean (rear)HO2S DIAGNOSTICS
P0152160Engine running rich (rear)HO2S DIAGNOSTICS
P015416202 sensor high/open (rear)HO2S DIAGNOSTICS
P022079TPS 2 range errorTCA DIAGNOSTICS
P022277TPS 2 open lowTCA DIAGNOSTICS
P022378TPS 2 highTCA DIAGNOSTICS
P026196Fuel injector low/open (front)FUEL INJECTOR DIAGNOSTICS
P026297Fuel injector shorted high (front)FUEL INJECTOR DIAGNOSTICS
P026498Fuel injector low/open (rear)FUEL INJECTOR DIAGNOSTICS
P026599Fuel injector shorted high (rear)FUEL INJECTOR DIAGNOSTICS
P0325139Knock sensor front open circuitKNOCK SENSOR DIAGNOSTICS
P0327140Knock sensor front circuit lowKNOCK SENSOR DIAGNOSTICS
P0328141Knock sensor front circuit highKNOCK SENSOR DIAGNOSTICS
P0330142Knock sensor rear open circuitKNOCK SENSOR DIAGNOSTICS
P0332143Knock sensor rear circuit lowKNOCK SENSOR DIAGNOSTICS
P0333144Knock sensor rear circuit highKNOCK SENSOR DIAGNOSTICS
P037165CKP sensor wrong number of pulsesCKP SENSOR DIAGNOSTICS
P037464CKP sensor no pulsesCKP SENSOR DIAGNOSTICS
P0444147Purge solenoid low openPURGE SOLENOID DIAGNOSTICS
P0445148Purge solenoid shorted highPURGE SOLENOID DIAGNOSTICS
P0462174Fuel sender shorted lowFUEL GAUGE AND SENDER DIAGNOSTICS
P0463175Fuel sender shorted high/openFUEL GAUGE AND SENDER DIAGNOSTICS
P0502137VSS failed lowPURGE SOLENOID DIAGNOSTICS
P0503138VSSfailed high VSS DIAGNOSTICS
P0505148Idle speed control – unstableIDLE SPEED CONTROL DIAGNOSTICS
P0522168Engine oil pressure sensor/switch shorted lowINDICATOR LAMPS
P0523169Engine oil pressure sensor/switch shorted high openINDICATOR LAMPS
P0562127ECM voltage low BATTERYAND SYSTEM VOLTAGE DIAGNOSTICS
P0572202Brake switch lowBRAKE SWITCH DIAGNOSTICS
P0577163Cruise controlinput error Cruise Control
P060329ECM EEPROM memory errorECM INTERNAL DIAGNOSTICS
P060528ECM FLASH memory errorECM INTERNAL DIAGNOSTICS
P0641625 Volt reference out of range5V REFERENCE DIAGNOSTICS
P0651635 Volt reference 2 out of range5V REFERENCE DIAGNOSTICS
P0693119Chassis fan control circuit shorted lowCHASSIS FAN DIAGNOSTICS
P0694120Chassis fan control circuit shorted highCHASSIS FAN DIAGNOSTICS
P100932VTD disabled fuel due to bad passwordDTC P1009
P1017103ET indicates overheatingDTC P1017
P1019106ECT difference (high temp)ECT SENSOR DIAGNOSTICS
P127067TGS 2 ND validation errorDTC P1270
P1501166JSS lowJSS DIAGNOSTICS
P1502167JSS high openJSS DIAGNOSTICS
P1505445Power limit violationHESITATION OR LOSS OF POWER
P1510447ETC limited performance modeETC MANAGEMENT DIAGNOSTICS
P1511448ETC power management modeETC MANAGEMENT DIAGNOSTICS
P1512449ETC forced idle modeETC MANAGEMENT DIAGNOSTICS
P151487ETC airflow errorETC ERROR DIAGNOSTICS
P160066ETC watchdog errorETC ERROR DIAGNOSTICS
P1655164ACR solenoid open lowACR Diagnostics
P1656165ACR solenoid shorted highACR Diagnostics
P1691115Cooling fan left low openCOOLING FAN DIAGNOSTICS
P1692116Cooling fan left shorted highCOOLING FAN DIAGNOSTICS
P1693117Cooling fan right low openCOOLING FAN DIAGNOSTICS
P1694118Cooling fan right shorted highCOOLING FAN DIAGNOSTICS
P210082ETC driver open circuitETC ACTUATOR DIAGNOSTICS
P210183ETC actuation errorETC ACTUATOR DIAGNOSTICS
P210284ETC driver shorted lowETC ACTUATOR DIAGNOSTICS
P210385ETC driver shorted highETC ACTUATOR DIAGNOSTICS
P2105446ETC forced shutdown modeDTC P2105, P2107
P210768ETC driver internal errorDTC P2105, P2107
P211981ETC actuator return errorDTC P2119
P212269TGS 1 low/openTGS DIAGNOSTICS
P212370TGS 1 highTGS DIAGNOSTICS
P212771TGS 2 low/openTGS DIAGNOSTICS
P212872TGS 2 highTGS DIAGNOSTICS
P213580TPS correlation errorCORRELATION ERROR DIAGNOSTICS
P213873TGS correlation errorCORRELATION ERROR DIAGNOSTICS
P217686ETC zero position learning errorDTC P2176
P2184121ECT sensor lowECT SENSOR DIAGNOSTICS
P2185122ECT sensor highECT SENSOR DIAGNOSTICS
P230088Ignition coil driver low/open (front)IGN COIL DRIVER DIAGNOSTICS
P230189Ignition coil driver shorted high (front)IGN COIL DRIVER DIAGNOSTICS
P230390Ignition coil driver low/open (rear)IGN COIL DRIVER DIAGNOSTICS
P230491Ignition coil driver shorted high (rear)IGN COIL DRIVER DIAGNOSTICS
P2602104Coolant pump “A” control circuit lowCOOLING PUMP DIAGNOSTICS
P2603105Coolant pump “A” control circuit highCOOLING PUMP DIAGNOSTICS
U00011CAN BUS errorOdometer Self-Diagnostic Inoperative: DTC 00001, 00002, U0011, B2274
U000216CAN comm bus perf errorOdometer Self Diagnostic Inoperative: DTC 00001, 00002, U0011, 82274
U000313Network management monitoringNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U00112CAN bus low shorted to CAN bus highOdometer Self-Diagnostic Inoperative: DTC 00001, 00002, 00011, B2274
U01007Lost comm w/ECMNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U012111Lost comm w/ABSNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U01403Lost comm w/BCMNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U01419Lost comm w/LHCMNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U01428Lost comm w/RHCMNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U015610Lost comm w/speedoNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0158180Lost comm w/fuel gaugeSECONDARY COMMUNICATION DIAGNOSTICS
U0159181Lost comm w/volt gaugeSECONDARY COMMUNICATION DIAGNOSTICS
U0160179Lost comm w/fuel and volt gaugesSECONDARY COMMUNICATION DIAGNOSTICS
U0184323Lost comm w/radioNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0185325Lost comm w/AMP1 AMP COMMUNICATION DIAGNOSTICS
U0186326Lost comm w/AMP2 AMP COMMUNICATION DIAGNOSTICS
U018720Lost comm w/AMP3 AMP COMMUNICATION DIAGNOSTICS
U018821Lost comm w/AMP4 AMP COMMUNICATION DIAGNOSTICS
U030015Internal control module software incompatibilityNO VEHICLE POWER OR LOST COMMUNICATION DTCS
U1302324ACC bus pert errorSECONDARY COMMUNICATION DIAGNOSTICS
U1401331Lost comm w CBSECONDARY COMMUNICATION DIAGNOSTICS
U1401331Lost comm w CBCOMMUNICATION DIAGNOSTICS
U1405450ACC bus lost comm w/ WIMCode used to support P&A parts

Harley Trouble Codes Abbreviation List

ABS – Anti-Lock Braking System
ACR – Automatic Compression Release
AFR – Air Fuel Ratio
AIS – Active Intake Solenoid
ATS – Air Temperature Sensor
BAS – Bank Angle Sensor
BCM – Body Control Module
CAN – Controller Area Network
CCM – Cruise Control Module
CKP – Crank Position Sensor
DLC – Datalink Connector
DTC – Diagnostic Trouble Codes
ECM – Electronic Control Module
ECT – Engine Coolant Temperature
ECU – Electronic Control Unit
EFI – Electronic Fuel Injection
EFP – Electronic Fuel Pump
ET – Engine Temperature sensor
FI – Fuel Injectors
FPR – Fuel Pressure regulator
H-DSSS – Harley-Davidson Smart Security System
HCU – Hydraulic Control Unit, ABS
HFSM – Hands Free Security Module
HO2S – Heated Oxygen Sensor
IAC – Idle Air Control actuator
IAT – Intake Air Temperature sensor
ICM – Ignition Control Module
IMAP – MAP + IAT in one unit
ISS – Ion Sensing System
JSS – Jiffy Stand Sensor
LHCM – Left Hand Control Module
MAP – Manifold Absolute Pressure Sensor
MHR – Right Hand Control Module
RCM – Reverse Control Module
TCA – Throttle Control Actuator
TGS – Twist Grip Sensor
TMAP – Intake Air Temperature / Manifold Absolute Pressure equipment
TPS – Throttle Position Sensor
TSM / TSSM – (Turn Signal / Turn Signal Security Module)
VE – Volume Efficiency
VIN – Vehicle identification number
VSS – Vehicle Speed Sensor
WSS – Wheel Speed Sensor

List of P codes

P0031 Front HO2S low/open
P0032 Front HO2S shorted/high
P0051 Rear HO2S low/open
P0052 Rear HO2S shorted/high
P0072 AAT sensor low
P0073 AAT sensor high/open
P0107 MAP sensor failed low/open
P0107 Map Sensor Open/Low
P0108 MAP sensor failed high/open port
P0112 IAT Voltage Low
P0113 IAT Voltage Open/High
P0117 ET Sensor Low
P0118 ET Sensor High
P0120 TPS1 Range Error
P0122 TPS1 Low
P0123 TPS2 High/Open
P0131 Front Oxygen Sensor Low / Engine Lean
P0132 Front Oxygen Sensor High / Engine Rich
P0134 Front Oxygen Sensor Inactive
P0151 Rear Oxygen Sensor Low / Engine Lean
P0152 Rear Oxygen Sensor High / Engine Rich
P0154 Rear Oxygen Sensor Inactive
P0220 TPS2 Range Error
P0222 TPS2 Low/Open
P0223 TPS2 High/Open
P0261 Front Injector Open/Low
P0262 Front Injector High
P0263 Rear Injector Open/Low
P0264 Rear Injector High
P0265 Rear injector shorted high
P0371 CKP sensor wrong number of pulses
P0373 CKP Sensor Intermittent
P0374 CKP Sensor Synch Error
P0444 Purge Solenoid Open/Low
P0445 Purge Solenoid High
P0501 VSS Sensor Low
P0502 VSS Sensor High/Open
P0503 VSS failed high
P0505 Idle speed control unstable
P0562 Battery/ECM Voltage Low
P0563 Battery/ECM Voltage High
P0572 Brake Switch Low
P0577 Cruise Control Input High
P0603 ECM EEPROM Memory Error
P0605 ECM FLASH Memory Error
P0641 5 Volt Reference 1 Out of Range
P0651 5 Volt Reference 2 Out of Range
P0691 Fan/cooling relay output low/open
P0692 Fan/cooling relay output high
P1001 System Relay Coil Open/Low
P1002 System Relay Coil High/Shorted
P1003 System relay contacts open
P1004 System Relay Contacts Closed
P1009 VTD Disabled Fuel Due to Incorrect Password
P1010 Missing Password
P1017 ET indicates overheating
P1019 ECT Difference (high temp)
P1270 TGS 2 A/D Validation Error
P1351 Front Ignition Coil Driver Open/Low
P1352 Front Ignition Coil Driver High/Shorted
P1353 Front Cylnder No Combustion
P1354 Rear Ignition Coil Driver Open/Low
P1355 Rear Ignition Coil Driver High/Shorted
P1356 Rear Cylinder No Combustion
P1357 Front Cylinder Combustion Intermittent
P1358 Rear Cylinder Combustion Intermittent
P1475 Exhaust Actuation Position Error
P1477 Exhaust Actuator Open/Low
P1478 Exhaust Actuator Shorted/High
P1501 Jiffy Stand Sensor Low
P1502 Jiffy Stand Sensor High
P1510 EFI Limited Performance Mode
P1511 EFI Power Management Mode
P1512 EFI Forced Idle Mode
P1514 ETC Air Flow Fault/Error
P1600 EFI Module Processor Internal Error / Watchdog Error
P1608 Loss of continuous battery
P1655 ACR solenoid low/open
P1656 ACR solenoid shorted high
P1691 Cooling fan left low/open
P1692 Cooling fan left shorted high
P1693 Cooling fan right low/open
P1694 Cooling fan right shorted high
P2100 EFI Motor Circuit Open
P2101 EFI Motor Circuit Range Performance (Actuation Error)
P2102 EFI Motor Circuit Low
P2103 EFI Motor Circuit High
P2105 EFI Forced engine shutdown
P2107 EFI Module Processor Internal Fault
P2119 EFI Motor Throttle Body RangePerformance
P2122 TGS1 Low/Open
P2123 TGS1 High
P2127 TGS2 Low/Open
P2128 TGS2 High
P2135 TPS Correlation Error
P2138 TGS Correlation Error (Twist grip sensor)
P2176 EFI Closed Position Not Learned
P2184 ECT sensor low
P2185 ECT sensor high
P2300 Ignition coil driver low/open (front)
P2301 Ignition coil driver shorted high (front)
P2303 Ignition coil driver low/open (rear)
P2304 Ignition coil driver shorted high (rear)

List of C Codes

C0562 ABS voltage low
C0563 ABS voltage high
C1014 ABS ECU relay error
C1021 ABS front WSS always zero
C1023 ABS rear WSS always zero
C1025 ABS Front wheel speed intermittent
C1027 ABS rear wheel speed intermittent
C1029 ABS wheel speed difference too high
C1032 ABS Front wheel speed circuit open/shorted
C1034 ABS rear wheel speed circuit open/shorted
C1040 ABS pump/motor error
C1055 ABS ECU internal error
C1061 ABS front apply solenoid circuit open/high resistance
C1062 ABS front release solenoid circuit open/high resistance
C1065 ABS rear apply solenoid circuit open/high resistance
C1066 ABS rear release solenoid circuit open/high resistance
C1071 Rear prime valve error
C1072 Rear isolation valve error
C1073 Front isolation valve error
C1074 Front prime valve error
C1075 Front linked inlet valve error
C1076 Front linked outlet valve error
C1077 Front circuit pressure sensor error
C1078 Rear circuit pressure sensor error
C1081 Front master pressure sensor error
C1082 Front master pressure sensor offset error
C1083 Front wheel pressure sensor error
C1084 Front wheel pressure sensor offset error
C1085 Rear master pressure sensor error
C1086 Rear master pressure offset sensor error
C1087 Rear wheel pressure sensor error
C1088 Rear wheel pressure sensor offset error
C1089 Pressure sensor external supply error
C1159 ABS invalid stored VIN
C1178 ABS no VIN received from ECM
C1184 ABS invalid VIN from ECM
C1195 Wake up error

List of B Codes

B0563 Battery Voltage High
B1103 LHCM Internal error
B1121(HFSM) Left Turn Output Open
B1121(TSM) Left Turn Output Fault
B1122(HFSM) Right Turn Output Open
B1122(TSM) Right Turn Output Fault
B1123(HFSM) Left Turn Output Short to Ground
B1124(HFSM) Right Turn Output Short to Ground
B1125(HFSM) Left Turn Output Short to Battery
B1126(HFSM) Right Turn Output Short to Battery
B1131(HFSM) Alarm Output Low
B1132(HFSM) Alarm Output High
B1134 Starter Output High
B1135 Accelerometer Failed
B1136(HFSM) Accelerometer Tip Test Error
B1141(HFSM) Ignition SwitchLow/Open
B1141(TSM) Ignition SwitchLow/Open
B1142 Smart Security System Internal Fault
B1143(HFSM) Security Antenna Short to Ground
B1144(HFSM) Security Antenna Short to Battery
B1145(HFSM) Security Antenna Open
B1151 Bank Angle Sensor(BAS) Short to Ground
B1152 Bank Angle Sensor(BAS) Short to Battery
B1153 Bank Angle Sensor(BAS) High
B1153 RHCM internal error
B1154 Clutch Switch Input Short to Ground
B1155 Neutral Switch Input Short to Battery
B1200 IM internal fault
B1210 Fuel level sender shorted low/open
B1211 Fuel level sender shorted high
B1212 Fuel signal low
B1213 Fuel signal high
B1300 Radio voltage high
B1301 Radio voltage low
B1302 Face plate home button stuck
B1303 Face plate favorite button stuck
B1304 Face plate navigation button stuck
B1305 Face plate power/mute button stuck
B1306 Rear hand controls shorted high
B1307 Rear hand controls shorted low
B1308 Rear volume up button stuck
B1309 Rear volume down button stuck
B1310 Rear mode button stuck
B1311 Rear PTT button stuck
B1312 Rear tune up button stuck
B1313 Rear tune down button stuck
B1314 LHCM VR button stuck
B1315 LHCM up button stuck
B1316 LHCM left button stuck
B1317 LHCM center button stuck
B1318 LHCM right button stuck
B1319 LHCM down button stuck
B1320 RHCM Info button stuck
B1321 RHCM up button stuck
B1322 RHCM left button stuck
B1323 RHCM center button stuck
B1324 RHCM right button stuck
B1325 RHCM down button stuck
B1326 RHCM CB squelch up button stuck
B1327 RHCM CB PTT button stuck
B1328 RHCM CB squelch down button stuck
B1329 Faceplate preset button 1 stuck
B1330 Faceplate preset button 2 stuck
B1331 Faceplate preset button 3 stuck
B1332 Faceplate preset button 4 stuck
B1333 Faceplate preset button 5 stuck
B1334 Faceplate preset button 6 stuck
B1335 Faceplate preset button 7 stuck
B1336 Faceplate preset button 8 stuck
B1337 Front left speaker shorted together
B1338 Front left speaker open
B1339 Front left speaker shorted low
B1340 Front left speaker shorted high
B1341 Rear left speaker shorted together
B1342 Rear left speaker open
B1343 Rear left speaker shorted low
B1344 Rear left speaker shorted high
B1345 Front right speaker shorted together
B1346 Front right speaker open
B1347 Front right speaker shorted low
B1348 Font right speaker shorted high
B1349 Rear right speaker shorted together
B1350 Rear right speaker open
B1351 Rear right speaker shorted low
B1352 Rear right speaker shorted high
B1353 Speaker offset DC output
B1354 GPS antenna open
B1355 GPS antenna shorted low
B1356 SDARS antenna open
B1357 SDARS antenna shorted
B1358 Front left headset shorted high
B1359 Front right headset shorted high
B1360 Front left headset shorted low
B1361 Front right headset shorted low
B1362 Rear left headset shorted high
B1363 Rear right headset shorted high
B1364 Rear left headset shorted low
B1365 Rear right headset shorted low
B1366 Internal thermal shutdown error
B1401 Amp voltage low
B1402 Amp voltage high
* Amp 1 Amp 2
B1403 Speaker offset DC output *
B1404 Internal thermal shutdown error *
B1405 EQ correlation error
B1406 Invalid or missing EQ
B1410 Channel 1 speaker open *
B1411 Channel 1 speaker shorted low *
B1412 Channel 1 speaker shorted high *
B1413 Channel 1 Speaker shorted together *
B1420 Channel 2 speaker open *
B1421 Channel 2 speaker shorted low *
B1422 Channel 2 speaker shorted high *
B1423 Channel 2 speaker shorted together *
B1430 Channel 3 speaker open *
B1431 Channel 3 speaker shorted low *
B1432 Channel 3 speaker shorted high *
B1433 Channel 3 speaker shorted together *
B1440 Channel 4 speaker open *
B1441 Channel 4 speaker shorted low *
B1442 Channel 4 speaker shorted high *
B1443 Channel 4 speaker shorted together *
B2102 System power output shorted high
B2103 System power output shorted low
B2104 System power output overloaded
B2106 L4 output open
B2107 L4 output shorted high
B2108 L4 output shorted low
B2109 L4 output overloaded
B2112 ACC output shorted high
B2113 ACC output shorted low
B2114 ACC output overloaded
B2116 Fuel pump output open
B2117 Fuel pump output shorted high
B2118 Fuel pump output shorted low
B2119 Fuel pump output overloaded
B2121 Starter output open
B2122 Starter output shorted high
B2123 Starter output shorted low
B2124 Starter output overloaded
B2127 E4 output shorted high
B2128 E4 output shorted low
B2129 E4 output overloaded
B2131 High beam output open
B2132 High beam output shorted high
B2133 High beam output shorted low
B2134 High beam output overloaded
B2136 Low beam output open
B2137 Low beam output shorted high
B2138 Low beam output shorted low
B2139 Low beam output overloaded
B2141 Left front turn signal output open
B2143 Left front turn signal output shorted low
B2144 Left front turn signal output overloaded
B2146 Right front turn signal output open
B2148 Right front turn signal output shorted low
B2149 Right front turn signal output overloaded
B2151 Left rear turn signal output open
B2153 Left rear turn signal output shorted low
B2154 Left rear turn signal output overloaded
B2156 Right rear turn signal output open
B2158 Right rear turn signal output shorted low
B2159 Right rear turn signal output overloaded
B2161 Brake lamp output open
B2163 Brake lamp output shorted low
B2164 Brake lamp output overloaded
B2168 Running lights output shorted low
B2169 Running lights output overloaded
B2172 H2 output shorted high
B2173 H2 output shorted low
B2176 Security antenna output open
B2177 Security antenna output shorted high
B2178 Security antenna output shorted low
B2183 G2 output shorted low
B2188 G3 output shorted low
B2193 H4 output shorted low
B2198 H3 output shorted low
B2201 IGN switch off w/VSS
B2203 Ignition switch input shorted low
B2206 Run/stop switch input open/shorted high
B2208 Run/stop switch input shorted low
B2210 Run/stop switch inputs both open
B2212 Run/stop switch inputs both closed
B2218 Neutral switch shorted low
B2223 Rear brake switch shorted low (light on)
B2226 BAS input open
B2228 BAS input shorted low
B2231 Fork locked/VSS
B2232 Fork lock shorted high
B2233 Fork lock shorted low
B2234 Fork lock detected with option disabled
B2235 Fork lock configuration invalid
B2250 Clutch switch stuck
B2251 Horn switch stuck
B2253 FTP switch stuck
B2254 Left turn switch stuck
B2255 Trip switch stuck
B2256 LHCM Police siren power stuck
B2257 LHCM Police siren wail power stuck
B2258 LHCM police siren yelp stuck
B2260 Start switch stuck
B2261 Right turn switch stuck
B2262 Front brake switch stuck
B2263 Hazard switch stuck
B2264 RHCM police lights power switch stuck
B2265 RHCM police lights front switch stuck
B2266 RHCM police lights rear switch stuck
B2267 RHCM police ICR switch stuck
B2270 BCM internal error
B2271 BCM voltage low
B2272 BCM/IM voltage high
B2274 Constant battery line error

List of U Codes

U0001 CAN BUS error
U0002 CAN comm bus perf error
U0003 Network management monitoring
U0100 Lost comm w/ECM
U0121 Lost comm W/ABS
U0140 Lost comm W/BCM
U0141 Lost comm w/LHCM
U0142 Lost comm w/RHCM
U0156 Lost comm w/SPEEDO
U0158 Lost comm w/fuel gauge
U0159 Lost comm w/volt gauge
U0160 Lost comm w/ fuel and volt gauge
U0184 Lost comm w/radio
U0185 Lost comm w/Amp 1
U0186 Lost comm w/ AMP 2
U1016 Loss of ECM Serial Data
U1064 Loss of TSM/FSFM Serial Data to ECM
U1097 Loss of SpeedometerSerial Data to ECM
U1255 Serial Data Error
U1300 ECM Serial Data Low
U1300 Serial Data Low
U1301 ECM Serial Data High
U1301 Serial Data High
U1302 ACC bus perf error
U1401 Lost com w/CB

How do I get Harley Trouble codes?

One of the unique features of Harley-Davidson® motorcycle is the ability to display codes right on the dash, no tool required! This makes it easy to diagnose any problems that may arise. To enter the diagnostic system and retrieve a trouble code, hold down the trip reset button.

How do you read a Harley Davidson engine code?

To get the DTC within an area of diagnostics, push and hold the odometer reset button in for 5 seconds and release. If there are any DTC’s the code will be shown on the display. The diagnostic trouble codes (DTC) can help with troubleshooting problems with your motorcycle. The Harley trouble codes will be displayed as a letter and a number. For Harley Davidson motorcycles, there are two types of codes- engine and ABS/DSC. To clear the codes, push and hold the odometer reset button in for 5 seconds and release.