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.


DTC FAULT CONDITION MODULE

B0563 Battery Voltage High TSM/TSSM
B1004 Fuel Level Sending Unit Low Instruments
B1005 Fuel Level Sending Unit High/Open Instruments
B1006 Accessory Line Overvoltage Instruments
B1007 Ignition Line Overvoltage Instruments
B1008 Reset Switch Closed Instruments
B1131 Alarm Output Low TSM/TSSM
B1132 Alarm Output High TSM/TSSM
B1134 Starter Output High TSM/TSSM
B1135 Accelerometer Fault TSM/TSSM
B1151 Sidecar BAS Low TSM/TSSM
B1152 Sidecar BAS High TSM/TSSM
B1153 Sidecar BAS Out of Range TSM/TSSM
P0106 MAP Sensor Rate of Range Error Carb
P0107 Map Sensor Failed Open/Low Carb
P0107 Map Sensor Open/Low EFI
P0108 Map Sensor Failed High Carb
P0108 Map Sensor High EFI
P0112 IAT Sensor Voltage Low EFI
P0113 IAT Sensor Voltage Open/High EFI
P0117 ET Sensor Voltage Low EFI
P0118 ET Sensor Voltage Open/High EFI
P0122 TP Sensor Open/Low EFI
P0123 TP Sensor High EFI
P0261 Front Injector Open/Low EFI
P0262 Front Injector High EFI
P0263 Rear Injector Open/Low EFI
P0264 Rear Injector High EFI
P0373 CKP Sensor Intermittent Carb
P0373 CKP Sensor Intermittent EFI
P0374 CKP Sensor Not Detected Carb
P0374 CKP Sensor Synch Error EFI
P0501 VSS Low Carb
P0501 VSS Low EFI
P0502 VSS High/Open Carb
P0502 VSS High/Open EFI
P0505 Loss of Idle Sped Control EFI
P0562 Battery Voltage Low Carb
P0562 Battery Voltage Low EFI
P0563 Battery Voltage High Carb
P0563 Battery Voltage High EFI
P0602 Calibration Memory Error Carb
P0603 EEPROM Failure Carb
P0603 ECM EEPROM Error EFI
P0604 RAM Failure Carb
P0605 Program Memory Error Carb
P0605 ECM Flash Error EFI
P0607 Converter Error Carb
P1001 Syste

 

Does this test work on a 2001 flhtcui?

 

I don't believe the 2001 FLHTCUI's are capable of displaying the DTC's on the IM. The 2003 FLHTCUI will flash the turn signals. You have count the number of flashes to get the code. The IM is only capable of displaying DTC codes on 2004 and later models for the FLHTCUI. My 2002 VRSCA is capable of displaying DTC codes on the IM but the codes are numbered a little different. I suggest you get the 2001 Harley Davidson Electrical Diagnostics Manual for your bike. Perhaps someone in this forum has this information for your 2001 FLHTCUI.

 

I have the service manual, but it has no reference to a self diagnostic system on the bike. I went to a dealer, but they couldn't find the problem. I guess I'll have to go to another shop.

Thanks

Joe

 

The service manual (p/n 999483-04) is not the same as the electical diagnostic manual (p/n 99497-04) for the '04 FLHTCUI. I would definitetly take my bike to another wrench if I were you.

 

Thanks for posting this info. My Check engine light was coming on and off during a long trip, but the bike performed well. Have run the diagnostics now and get a PO113 code. IAT sensor voltage open/high EFI. Should I clear the code and see if it returns or go ahead and replace the sensor or something else?
Thanks

 

What year and model is your bike?
I would clean the connection on the IAT sensor and then clear the code. If it comes back, I would replace the sensor.

 

I have a FLHPI o4 with the following diagnostic codes when I clear them they come back. P pn32733-04A S 68920-0IC SP pn67033-04 E pn 67042-04 Can you help with these codes

 

Can anyone help me with 08 sg, have two codes one I can not find, PO 572, the other is U 1016, Thanks

 

Getting PO108 DTC. It takes a long time to idle down. Runs ok at lower speeds but bogs down when trying to open it up. Engine light comes on while it's sputtering then goes out when I back off the throttle.