2002 and Later EFI-equipped FLTs

Knowing which DTC Codes are stored by your bike's ECM can greatly assist you in determining the source of a problem you are having. In order to check the codes on an EFI-equipped Electra Glide (FLHTC/U-I), Road Glide (FLTR-I) or Road King (FLHRC-I) without the benefit of a scanalyzer, do the following:

Turn the key switch to 'OFF'.

Set the handlebar kill switch to 'On'.

Push in the speedometer reset button and, while holding it in, turn the ignition switch to 'RUN'.

While still holding the speedometer reset button in, wait while the speedometer needle moves to the end of its scale and back, the lights flash, instrument panel lights up and, finally, the word 'diag' appears on the LCD readout. Once 'diag' appears, let go of the speedometer reset button.

Now push the speedometer reset button once more, so the world 'PSSPt' appears. 'PSSPt' represents 4 regions of diagnostic information ('P', 'S', 'SP' and 't') that can be displayed. Pressing the speedometer reset button lets you choose which one you will read next. For instance, to get to 'SP' you would now push the reset button twice. The selected area is indicated by its letter(s) flashing.
- P = ECM/ICM (Electronic Control Module (EFI) / (Ignition Control Module, 'Carbureted')
- S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
- SP = speedometer
- T = tachometer

Once you have the diagnostic area you want selected, push in the reset button and hold until the display changes. If there are any codes to be displayed, the first one will appear now. If there are more codes, pushing the reset button again will cause the next one to appear. If there are no codes, the word 'nONE' will appear.

You may clear the code you are currently viewing (the first one to appear being the latest one stored) by now pushing in the reset button and holding it in for 5 seconds.
- Clearing a code can be useful in determining how frequently the code is being generated. If you clear the code you can then run the bike and check again to see if the code has come back right away.
- If you want to know what any code means, write it down and refer to the chart below to interpret.

Once finished, turn the ignition key to 'OFF'.

DTC Code	Description of Fault
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	System Relay Coil Open/Low EFI
P1002	System relay Coil High/Shorted EFI
P1003	System relay Contacts Open EFI
P1004	System Relay Contacts Closed EFI
P1009	Incorrect Password Carb
P1009	Incorrect Password EFI
P1010	Missing Password Carb
P1010	Missing Password EFI
P1351	Front Ignition Open/Low Carb
P1351	Front Ignition Open/Low EFI
P1352	Front Ignition Coil High/Shorted Carb
P1352	Front Ignition Coil High/Shorted EFI
P1353	Front Cylinder No Combustion EFI
P1354	Rear Ignition Coil Open/Low Carb
P1354	Rear Ignition Coil Open/Low EFI
P1355	Rear Ignition Coil High/Shorted Carb
P1355	Rear Ignition Coil High/Shorted EFI
P1356	Rear Cylinder No Combustion EFI
P1357	Intermittent Secondary Front EFI
P1358	Intermittent Secondary Rear EFI
U1016	Loss of ICM/ECM Serial Data Instruments
U1016	Loss of ECM Serial Data, Vehicle Speed, Vehicle Inhibit Motion or Powertrain Security Status TSM/TSSM
U1064	Loss of TSM/TSSM Serial Data Carb
U1064	Loss of TSM/TSSM Serial Data EFI
U1064	Loss of TSM/TSSM Serial Data Instruments
U1097	Loss of Speedometer Serial data Carb
U1097	Loss of Speedometer Serial data EFI
U1097	Loss of Speedometer Serial data TSM/TSSM
U1255	Missing Message at Speedometer EFI
U1255	Serial Data Error/Missing Message EFI
U1255	Serial Data Error/Missing Message Instruments
U1255	Serial Data Error/Missing Message TSM/TSSM
U1300	Serial Data Low Carb
U1300	Serial Data Low EFI
U1300	Serial Data Low Instruments
U1300	Serial Data Low TSM/TSSM
U1301	Serial Data Open/High Carb
U1301	Serial Data Open/High EFI
U1301	Serial Data Open/High Instruments
U1301	Serial Data Open/High TSM/TSSM

Abbreviation	Description
AFR	Air Fuel Ratio
ATS	Air Temperature Sensor
BAS	Bank Angle Sensor
CCM	Cruise Control Module
CKP	Crank Position Sensor. The CKP generates an AC signal which is sent to the ECM where it is used to reference engine position (TDC) and speed.
DTC	Diagnostic Trouble Codes
ECM	Electronic Control Module. (The Computer) Computes the spark advance for proper ignition timing and fuel control based on sensor inputs (from CKP, MAP & TP sensors) and controls the low-voltage circuits for the ignition coils and injectors. The dwell time for the ignition coil is also calculated in the microprocessor and is dependent upon battery voltage. The programmed dwell feature gives adequate spark at all speeds.
ECT	Engine Coolant Temperature. Sensor also controls the cooling fan relay that provides 12 Vdc to the fans.
EFI	Electronic Fuel Injection
EFP	Electronic Fuel Pump
ET	Engine Temperature sensor
FI	Fuel Injectors
FPR	Fuel Pressure regulator
IAC	Idle Air Control actuator
IAT	Intake Air Temperature sensor
ISS	Ion Sensing System…detonation detection
MAP	Manifold Absolute Pressure sensor. The MAP sensor monitors the intake manifold pressure (vacuum) and sendsthe information to the ECM. The EMC then adjusts the spark and fuel-timing advance curves for optimum performance.
TP	Throttle Position Sensor
TSM/TSSM	Turn Signal/ Turn Signal Security Module
VE	Volume Efficiency
VSS	Vehicle Speed Sensor. Used as an input for idle speed control

Turn the key switch to 'OFF'.

Set the handlebar kill switch to 'On'.

Push in the speedometer reset button and, while holding it in, turn the ignition switch to 'RUN'.

While still holding the speedometer reset button in, wait while the speedometer needle moves to the end of its scale and back, the lights flash, instrument panel lights up and, finally, the word 'diag' appears on the LCD readout. Once 'diag' appears, let go of the speedometer reset button.

Now push the speedometer reset button once more, so the world 'PSSPt' appears. 'PSSPt' represents 4 regions of diagnostic information ('P', 'S', 'SP' and 't') that can be displayed. Pressing the speedometer reset button lets you choose which one you will read next. For instance, to get to 'SP' you would now push the reset button twice. The selected area is indicated by its letter(s) flashing.
- P = ECM/ICM (Electronic Control Module (EFI) / (Ignition Control Module, 'Carbureted')
- S = TSM/TSSM (Turn Signal/ Turn Signal Security Module)
- SP = speedometer
- T = tachometer

Once you have the diagnostic area you want selected, push in the reset button and hold until the display changes. If there are any codes to be displayed, the first one will appear now. If there are more codes, pushing the reset button again will cause the next one to appear. If there are no codes, the word 'nONE' will appear.

You may clear the code you are currently viewing (the first one to appear being the latest one stored) by now pushing in the reset button and holding it in for 5 seconds.
- Clearing a code can be useful in determining how frequently the code is being generated. If you clear the code you can then run the bike and check again to see if the code has come back right away.
- If you want to know what any code means, write it down and refer to the chart below to interpret.

Once finished, turn the ignition key to 'OFF'.

DTC Code	Description of Fault
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	System Relay Coil Open/Low EFI
P1002	System relay Coil High/Shorted EFI
P1003	System relay Contacts Open EFI
P1004	System Relay Contacts Closed EFI
P1009	Incorrect Password Carb
P1009	Incorrect Password EFI
P1010	Missing Password Carb
P1010	Missing Password EFI
P1351	Front Ignition Open/Low Carb
P1351	Front Ignition Open/Low EFI
P1352	Front Ignition Coil High/Shorted Carb
P1352	Front Ignition Coil High/Shorted EFI
P1353	Front Cylinder No Combustion EFI
P1354	Rear Ignition Coil Open/Low Carb
P1354	Rear Ignition Coil Open/Low EFI
P1355	Rear Ignition Coil High/Shorted Carb
P1355	Rear Ignition Coil High/Shorted EFI
P1356	Rear Cylinder No Combustion EFI
P1357	Intermittent Secondary Front EFI
P1358	Intermittent Secondary Rear EFI
U1016	Loss of ICM/ECM Serial Data Instruments
U1016	Loss of ECM Serial Data, Vehicle Speed, Vehicle Inhibit Motion or Powertrain Security Status TSM/TSSM
U1064	Loss of TSM/TSSM Serial Data Carb
U1064	Loss of TSM/TSSM Serial Data EFI
U1064	Loss of TSM/TSSM Serial Data Instruments
U1097	Loss of Speedometer Serial data Carb
U1097	Loss of Speedometer Serial data EFI
U1097	Loss of Speedometer Serial data TSM/TSSM
U1255	Missing Message at Speedometer EFI
U1255	Serial Data Error/Missing Message EFI
U1255	Serial Data Error/Missing Message Instruments
U1255	Serial Data Error/Missing Message TSM/TSSM
U1300	Serial Data Low Carb
U1300	Serial Data Low EFI
U1300	Serial Data Low Instruments
U1300	Serial Data Low TSM/TSSM
U1301	Serial Data Open/High Carb
U1301	Serial Data Open/High EFI
U1301	Serial Data Open/High Instruments
U1301	Serial Data Open/High TSM/TSSM

Abbreviation	Description
AFR	Air Fuel Ratio
ATS	Air Temperature Sensor
BAS	Bank Angle Sensor
CCM	Cruise Control Module
CKP	Crank Position Sensor. The CKP generates an AC signal which is sent to the ECM where it is used to reference engine position (TDC) and speed.
DTC	Diagnostic Trouble Codes
ECM	Electronic Control Module. (The Computer) Computes the spark advance for proper ignition timing and fuel control based on sensor inputs (from CKP, MAP & TP sensors) and controls the low-voltage circuits for the ignition coils and injectors. The dwell time for the ignition coil is also calculated in the microprocessor and is dependent upon battery voltage. The programmed dwell feature gives adequate spark at all speeds.
ECT	Engine Coolant Temperature. Sensor also controls the cooling fan relay that provides 12 Vdc to the fans.
EFI	Electronic Fuel Injection
EFP	Electronic Fuel Pump
ET	Engine Temperature sensor
FI	Fuel Injectors
FPR	Fuel Pressure regulator
IAC	Idle Air Control actuator
IAT	Intake Air Temperature sensor
ISS	Ion Sensing System…detonation detection
MAP	Manifold Absolute Pressure sensor. The MAP sensor monitors the intake manifold pressure (vacuum) and sendsthe information to the ECM. The EMC then adjusts the spark and fuel-timing advance curves for optimum performance.
TP	Throttle Position Sensor
TSM/TSSM	Turn Signal/ Turn Signal Security Module
VE	Volume Efficiency
VSS	Vehicle Speed Sensor. Used as an input for idle speed control

How To Determine Trouble Codes From 2002 and Later Harleys

(for FLTHT, FLHTC, FLHTC-I, FLHTC Ultra-I, FLTR and FLTR-I models)

How To Determine Trouble Codes From 2002 and Later Harleys

(for FLTHT, FLHTC, FLHTC-I, FLHTC Ultra-I, FLTR and FLTR-I models)

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