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Harley Davidson Fault Codes PDF
Harley Davidson Fault Codes PDF
Harley Davidson Fault Codes.pdf
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HARLEY DAVIDSON Motorcycle Fault Codes DTC

Harley Davidson Sportster Motorcycle DTC Intsructions / error codes 



Enter diagnostic area by turning the ignition from OFF to ON while holding the reset switch in. The normal power-up sequence will occur before entering the diagnostic mode. Diagnostic codes set during this power-up sequence will be stored as well. 


Important Note: Be sure no diagnostic codes are indicated before reset is held in for more than 5 seconds or diagnostic information will be lost. 


When in diagnostic mode the odometer will display the first diagnostic code. When the trip switch is pressed again the next code will be shown. If the trip switch is pressed for more than 5 seconds at any time while in the diagnostic mode, the diagnostic code displayed will be erased. 


There are 7 different diagnostic codes available. They are as follows: 

d01 - Speed sensor power output shorted low 

d02 - Speed sensor power output shorted high or open 

d03 - Not Used 

d04 - Not Used 

d05 - Speed sensor return shorted high 

d06 - Speed sensor return shorted low 

d07 - Not Used 

d08 - Speedometer power over voltage 

d09 - Speed output shorted high 

d10 - Speed output shorted low or open 

CAL XX - Speedometer application calibration number: 

14 = Domestic 

15 = HDI 


When in the diagnostic mode, all codes are displayed in sequence from d01 to d10. 


As a code appears in the display (for instance d02), it will read "d02Set" if set or "d02CLr" if clear. 


The diagnostic mode is exited either by turning ignition from ON to OFF to ON again without depressing the reset switch or if a speed signal greater than 5 MPH is detected. 


Diagnostics cannot be performed if system voltage is less than 9 VDC or greater than 16 VDC. The only exception is d08 which is set when system voltage is greater than 16 VDC. 


After all the diagnostic codes are displayed, the speedometer calibration number is displayed (CAL 14 for example).



1- Turn Ignition switch to OFF & Run / Stop switch is to Run. 


2- Push odometer reset button in & hold. 


3- Turn ignition switch to Ignition and release odometer reset button. Background lighting sould illuminate, speedometer needle should sweep its full range and indicator lamps (battery, security, low fuel, check engine and cruise) should illuminate. The word “diag” should then appear. 


4 - Push the odometer reset button once and you will see the selection menu "PSSPt" with the first P flashing. 


5 - Each letter represents an area of the diagnostics module. The module that is flashing is the one you are going to check. To move from one letter (module) to the next, you push the odometer reset button one time. (from P to S to SP to t and back to P, etc.) 


P = ECM / ICM (Electronic Control Module [EFI] / Ignition Control Module [Carbureted]) 

S = TSM / TSSM (Turn Signal/ Turn Signal Security Module) 

SP = speedometer 

T = tachometer 


6 - 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 displayed or the word “none” will appear if there are no DTC’s. Push the odometer reset button again to view additional codes if they exist. 


7 - Record the codes. 


8 - If DTC’s are not to be cleared, Press and release the odometer reset button. Part number of module will be displayed. 

NOTE: To determine if a code is current or historic, clear the displayed code by pushing in and holding the odometer reset button ( longer than 5 seconds) until 'clear' comes up. Release the odometer reset button. Turn OFF the ignition switch. Run your bike and shut it down then recheck the DTC’s again by repeating steps 1 to 9. If the code is current it will reappear. 


9 – Press and release the odometer reset button to continue to the next module. 


10 – Turn Ignition switch to OFF. 


On models not equipped with a tachometer "No Rsp" will appear when the tachometer identifier is selected. 


"No Rsp" will also appear if the run/off switch is in the off position when doing this procedure. 


HFSM = Hands Free Security Module 

TSM = Turn signal module 

Priority / DTC / Fault condition 


1. P0605 ECM FLASH Memory Error 

2. P0603 ECM EEPROM Memory Error 

3. U1300 ECM Serial Data Low 

4. U1301 ECM Serial Data High 

5. U1097 Loss of Speedometer Serial Data to ECM 

6. U1064 Loss of TSM / FSFM Serial Data to ECM 

7. P1003 System relay contacts open 

8. P1002 System Relay Coil High / Shorted 

9. P1001 System Relay Coil Open/Low 

10. P1004 System Relay Contacts Closed 

11. P1009 Incorrect Password 

12. P1010 Missing Password 

13. P06415 V+Vref 1 Out Of Range 

14. P06515 V+Vref 2 Out Of Range 

15. P0373 CKP Sensor Intermittent 

16. P0107 Map Sensor Open/Low 

17. P0108 Map Sensor High 

18. P0374 CKP Sensor Synch Error 

19. P1600 EFI Module Processor Internal Error 

20. P1270 TGS Validation Error 

21. P2107 EFI Module Processor Internal Fault 

22. P2122 TGS1 Low/Open 

23. P2123 TGS1 High 

24. P2127 TGS2 Low/Open 

25. P2128 TGS2 High 

26. P2138 TGS Correlation Error (Twist grip sensor) 

27. P0120 TPS1 Range Error 

28. P0220 TPS2 Range Error 

29. P0122 TPS1 Low 

30. P0123 TPS2 High/Open 

31. P0222 TPS2 Low 

32. P0223 TPS2 High/Open 

33. P2135 TPS Correlation Error 

34. P2119 EFI Motor Throttle Body Range Performance 

35. P2100 EFI Motor Circuit Open 

36. P2101 EFI Motor Circuit Range Performance (Actuation Error) 

37. P2102 EFI Motor Circuit Low 

38. P2103 EFI Motor Circuit High 

39. P2176 EFI Closed Position Not Learned 

40. P1514 Air Flow Fault 

41. P2105 EFI Forced engine shutdown 

42. P1501 Jiffy Stand Sensor Low 

43. P1502 Jiffy Stand Sensor High 

44. P0572 Brake Switch Low 

45. P0117 ET Sensor Low 

46. P0118 ET Sensor High 

47. P0112I AT Voltage Low 

48. P0113I AT Voltage Open/High 

49. P1351 Front Ignition Coil Driver Open / Low 

50. P1354 Rear Ignition Coil Driver Open / Low 

51. P1352 Front Ignition Coil Driver High / Shorted 

52. P1355 Rear Ignition Coil Driver High / Shorted 

53. P1357 Front Cylinder Combustion Intermittent 

54. P1358 Rear Cylinder Combustion Intermittent 

55. P0261 Front Injector Open/Low 

56. P0263 Rear Injector Open/Low 

57. P0262 Front Injector High 

58. P0264 Rear Injector High 

59. P0562 Battery Voltage Low 

60. P0563 Battery Voltage High 

61. P0501 VSS Sensor Low 

62. P0502 VSS Sensor High / Open

63. P1356 Rear Cylinder No Combustion 

64. P1353 Front Cylnder No Combustion 

65. P0444 Purge Solenoid Open/Low 

66. P0445 Purge Solenoid High 

67. P1475 Exhaust Actuation Position Error 

68. P1477 Exhaust Actuator Open / Low 

69. P1478 Exhaust Actuator Shorted/High 

70. P0131 Front Oxygen Sensor Low 

71. P0151 Rear Oxygen Sensor Low 

72. P0132 Front Oxygen Sensor High 

73. P0152 Rear Oxygen Sensor High 

74. P0134 Front Oxygen Sensor Inactive 

75. P0154 Rear Oxygen Sensor Inactive 

76. P1510 EFI Limited Performance Mode 

77. P1511 EFI Power Management Mode 

78. P1512 EFI Forced Idle Mode 

79. P0577 Cruise Control Input High 

Priority / DTC / Fault condition 


HFSM = Hands Free Security Module 

TSM = Turn signal module 


1. U1300 Serial Data Low 

2. U1301 Serial Data High 

3. U1016 Loss of ECM Serial Data 

4. U1255 Serial Data Error 

5. B1142 Smart Security System Internal Fault 

6. B1135 Accelerometer Failed 

7. B1136(HFSM) Accelerometer Tip Test Error 

8. B1151 Bank Angle Sensor(BAS) Short to Ground 

9. B1152 Bank Angle Sensor(BAS) Short to Battery 

10. B1153 Bank Angle Sensor(BAS) High 

11. B1154 Clutch Switch Input Short to Ground 

12. B1155 Neutral Switch Input Short to Battery 

13. B1134 Starter Output High 

14. B1121(TSM) Left Turn Output Fault 

      B1121(HFSM) Left Turn Output Open 

15. B1122(TSM) Right Turn Output Fault 

      B1122(HFSM) Right Turn Output Open 

16. B1123(HFSM) Left Turn Output Short to Ground 

17. B1124(HFSM) Right Turn Output Short to Ground 

18. B1125(HFSM) Left Turn Output Short to Battery 

19. B1126(HFSM) Right Turn Output Short to Battery 

20. B1143(HFSM) Security Antenna Short to Ground 

21. B1144(HFSM) Security Antenna Short to Battery 

22. B1145(HFSM) Security Antenna Open 

23. B0563 Battery Voltage High 

24. B1131(HFSM) Alarm Output Low 

25. B1132(HFSM) Alarm Output High 

26. B1141(TSM) Ignition Switch Low/Open.. 

B1141(HFSM) Ignition Switch Low/Open