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Question on check engine lamp

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Old 10-12-2010, 09:05 PM
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Default Question on check engine lamp

Looking for an answer! I am a new owner of a softail heritage. The question I have is about the check engine lamp. In the manual it states the lamp normally comes on when the ignition is first turned on and remains on for approx 4 secs as the engine management system runs a series of self-diagnotics. This was true when I first got the bike, but now it never comes on. I asked the dealer about it, but they told me there was not a problem unless the light comes on when riding the bike and it remains on. The question I have is should it come on when I first turn the ignition on and run the diagnostic check or does it matter if it never comes on?
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Old 10-12-2010, 09:16 PM
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It is supposed to come on for those few seconds when ignition is turned on, do you also have the run/stop switch set to run on the bars?

If it is not coming on....I suspect there is a problem, possibly even the LED in the tank console. If it never comes on during the self diagnostics, how would you know if there is a genuine check engine light and fault code when driving? There could be a problem with the indicator and then you would never know if there was a current fault condition in the control system.

I would make them check it out, maybe even create a scenario that is known to throw a fault and see if it comes on. You can check for fault codes using the odometer switch, do a fault code search on the forums here and you will get step by step instructions on how to do that.

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Old 10-12-2010, 09:30 PM
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This may be what hellbent is talking about.
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Old 10-13-2010, 08:56 AM
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get it fixed, it should come on
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Old 10-29-2010, 11:50 AM
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I also have a new 2011 Heritage with the same issue, only mine comes on intermittently. I had it checked out at a dealer in Columbia, SC and they did not find anything wrong, but after i left it was back to lighting up when I went to start the bike. Last night, after sitting for three days, the light did not come on when I went to start it. When it did come on, it was only on for a second...not like my 2007 Softail Custom where the light would stay on for three-four seconds.
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Old 10-29-2010, 12:32 PM
DR. V-TWIN DR. V-TWIN is offline
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Check for codes.
The IM (instrument module) is capable of displaying DTC's (diagnostic trouble codes).
Speedometer Self Diagnostics: The speedometer is capable of displaying and clearing speedometer, tachometer, TSM/TSSM and ICM/ECM Diagnostic Trouble Codes (DTC).

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

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Old 10-29-2010, 01:57 PM
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wondering if the moderators could make drew's post a sticky note...that's gonna come in very handy.
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Old 10-30-2010, 01:36 AM
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Key On + Engine Off = Bulb Check

Unless you have modified the Fuel Injection System TTS Mastertune, Fuel Programmer, whatever . . . the stock computer will do a Bulb Check; unless there is a problem with the Bulb, the bulb wiring, or the computer. Even with modifications to most computers they will still do the Bulb Check.

FYI there is no code for a bad bulb, or bad bulb circuit.

A much easier way to access and clear the DTC's is to use MoCo's Hand-Held Code Reader P/N 32312-10

I have attached a complete list of all SAE OBD II Diagnostic Trouble Codes. There are 4,115 DTC's . . . sorry you asked? Harley-Davidson does not use very many of them; but these codes are specified by EPA legislation and so they are universal for all 1996 and newer vehicles. Even if Harley adds a new code in the coming years it'll be on this list. No matter what cage you drive . . . if it's 1996 and newer it's DTC's are on this list as well.

Last edited by Bluehighways; 06-20-2017 at 03:16 AM.
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Old 10-30-2010, 01:52 AM
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Boy I wish my 5000.00 Snap-on scanner at work would plug into my bike. I'm too lazy to use the dash and to cheap to buy a harley specific scanner.
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Old 11-21-2010, 10:12 PM
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Will this test to display trouble codes work for a 2003 Low Rider that is carburated?
On a recent trip, the check engine lamp illuminated about 4 or 5 times for a few seconds each time at highway speed. I pulled in the clutch and allowed the RPM fall to idle and the light went out each time. At that time, there was no irregular engine operation. After the lamp extinguished the last time, I started having intermittant misfires, coughing, spitting back through the carb, and generally running like crap. The lamp never came back on but the bike runs bad and pulling the choak VERY slightly smooths things out.

I would like to see if there are any stored codes that will help me figure out what is happening.
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