Harley-Davidson Fault Codes

This Harley-Davidson manual provides the information required for normal servicing.

To access codes

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" (on mine the "t" looks more like a "p" )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

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.

1 - Record the codes.

2 - 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 3 If the code is current it will reappear.

4 - Press and release the odometer reset button to continue to the next module.

5 - 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

Fault Code Table

Trouble Code	Fault Condition
11	Throttle Position Sensor
12	Barometric Pressure Sensor
14	Engine Temperature Sensor
15	Intake Air Temperature Sensor
16	Battery Positive Voltage
23	Front Injector
24	Front Ignition Coil
25	Rear Ignition Coil
32	Rear Injector
33	Fuel Pump Relay
52	ECM Ram Error
53	ECM Rom Error
54	EEPROM Error
55	Microprocessor Malfunction
56	Crank Position Sensor / CAM Position Sensor Signal Error

Harley-Davidson DTC List:

DTC	PRIORITY ORDER	FAULT CONDITION	SOLUTION
B1103	47	LHCM internal error	SWITCH DIAGNOSTICS
B1153	46	RHCM internal error	SWITCH DIAGNOSTICS
B1200	37	IM internal fault	NO INSTRUMENT POWER DIAGNOSTICS
B1210	176	Fuel level sender shorted low/open	FUEL GAUGE AND SENDER DIAGNOSTICS
B1211	182	Fuel level sender shorted high	FUEL GAUGE AND SENDER DIAGNOSTICS
B1212	175	Fuel signal low	FUEL GAUGE AND SENDER DIAGNOSTICS
B1213	176	Fuel signal high	FUEL GAUGE AND SENDER DIAGNOSTICS
B1300	340	Radio voltage high	AUDIO VOLTAGE DIAGNOSTICS
B1301	341	Radio voltage low	AUDIO VOLTAGE DIAGNOSTICS
B1302	342	Faceplate home button stuck	FACEPLATE BUTTON DIAGNOSTICS
B1303	343	Faceplate favorite button stuck	FACEPLATE BUTTON DIAGNOSTICS
B1304	344	Faceplate navigation button stuck	FACEPLATE BUTTON DIAGNOSTICS
B1305	345	Faceplate power/mute button stuck	FACEPLATE BUTTON DIAGNOSTICS
B1306	399	Rear hand controls shorted high	REAR AUDIO CONTROL DIAGNOSTICS
81307	400	Rear hand controls shorted low	REAR AUDIO CONTROL DIAGNOSTICS
81308	401	Rear volume up button stuck	REAR AUDIO CONTROL DIAGNOSTICS
B1309	402	Rear volume down button stuck	REAR AUDIO CONTROL DIAGNOSTICS
B1310	403	Rear mode button stuck	REAR AUDIO CONTROL DIAGNOSTICS
81311	404	Rear PTT button stuck	REAR AUDIO CONTROL DIAGNOSTICS
B1312	405	Rear tune up button stuck	REAR AUDIO CONTROL DIAGNOSTICS
B1313	406	Rear tune down button stuck	REAR AUDIO CONTROL DIAGNOSTICS
B1314	346	LHCM VR PTT button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1315	347	LHCM up button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1316	348	LHCM left button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1317	349	LHCM center button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1318	350	LHCM right button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1319	351	LHCM down button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1320	352	RHCM info button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1321	353	RHCM up button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1322	354	RHCM left button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1323	355	RHCM center button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1324	356	RHCM right button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1325	357	RHCM down button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1326	358	RHCM CB squelch up button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1327	359	RHCM CB PTT button stuck	FRONT HAND CONTROLS DIAGNOSTICS
B1328	360	RHCM CB squelch down button stuck	FRONT HAND CONTROLS DIAGNOSTICS
81329	361	Faceplate preset button 1 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1330	362	Faceplate preset button 2 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1331	363	Faceplate preset button 3 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1332	364	Faceplate preset button 4 stuck	FACEPLATE BUTTON DIAGNOSTICS
81333	365	Faceplate preset button 5 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1334	366	Faceplate preset button 6 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1335	367	Faceplate preset button 7 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1336	368	Faceplate preset button 8 stuck	FACEPLATE BUTTON DIAGNOSTICS
B1337	369	Front left speaker shorted together	FRONT SPEAKER DIAGNOSTICS
B1338	370	Front left speaker open	FRONT SPEAKER DIAGNOSTICS
B1339	371	Front left speaker shorted low	FRONT SPEAKER DIAGNOSTICS
B1340	372	Front left speaker shorted high	FRONT SPEAKER DIAGNOSTICS
B1341	373	Rear left speaker shorted together	REAR SPEAKER DIAGNOSTICS
B1342	374	Rear left speaker open	REAR SPEAKER DIAGNOSTICS
B1343	375	Rear left speaker shorted low	REAR SPEAKER DIAGNOSTICS
B1344	376	Rear left speaker shorted high	REAR SPEAKER DIAGNOSTICS
B1345	377	Front right speaker shorted together	FRONT SPEAKER DIAGNOSTICS
B1346	378	Front right speaker open	FRONT SPEAKER DIAGNOSTICS
B1347	379	Front right speaker shorted low	FRONT SPEAKER DIAGNOSTICS
B1348	380	Front right speaker shorted high	FRONT SPEAKER DIAGNOSTICS
B1349	381	Rear right speaker shorted together	REAR SPEAKER DIAGNOSTICS
B1350	382	Rear right speaker open	REAR SPEAKER DIAGNOSTICS
B1351	383	Rear right speaker shorted low	REAR SPEAKER DIAGNOSTICS
81352	384	Rear right speaker shorted high	REAR SPEAKER DIAGNOSTICS
B1353	385	Speaker output	DC offset DTC B1353
B1354	386	GPS antenna open	SECURITY ANTENNA DIAGNOSTICS
B1355	387	GPS antenna shorted low	SECURITY ANTENNA DIAGNOSTICS
B1356	388	SDARS antenna open	SECURITY ANTENNA DIAGNOSTICS
B1357	389	SDARS antenna shorted	SECURITY ANTENNA DIAGNOSTICS
B1358	390	Front left headset shorted high	HEADSET DTCS
B1359	391	Front right headset shorted high	HEADSET DTCS
B1360	392	Front left headset shorted low	HEADSET DTCS
B1361	393	Front right headset shorted low	HEADSET DTCS
B1362	394	Rear left headset shorted high	HEADSET DTCS
B1363	395	Rear right headset shorted high	HEADSET DTCS
B1364	396	Rear left headset shorted low	HEADSET DTCS
81365	397	Rear right headset shorted low	HEADSET DTCS
B1366	398	Internal thermal shutdown error	DTC 81366
B1367	451	WIM fault detected	Code used to support P&A parts.
B1401	407	Amp voltage low	AUDIO VOLTAGE DIAGNOSTICS
B1402	408	Amp voltage high	AUDIO VOLTAGE DIAGNOSTICS
81403	409	Speaker output DC offset	AMPLIFIER 1 DTCS
B1404	410	Internal thermal shutdown error	AMPLIFIER 1 DTCS
B1405	427	EQ correlation error	AUDIO SYSTEM SYMPTOMS
81406	428	Invalid or missing EQ	AUDIO SYSTEM SYMPTOMS
B1410	411	Channel 1 speaker open	AMPLIFIER 1 DTCS
B1411	412	Channel 1 speaker shorted low	AMPLIFIER 1 DTCS
B1412	413	Channel 1 speaker shorted high	AMPLIFIER 1 DTCS
B1413	414	Channel 1 speaker shorted together	AMPLIFIER 1 DTCS
B1420	415	Channel 2 speaker open	AMPLIFIER 1 DTCS
B1421	416	Channel 2 speaker shorted low	AMPLIFIER 1 DTCS
B1422	417	Channel 2 speaker shorted high	AMPLIFIER 1 DTCS
B1423	418	Channel 2 speaker shorted together	AMPLIFIER 1 DTCS
B1430	419	Channel 3 speaker open	AMPLIFIER 1 DTCS
B1431	420	Channel 3 speaker shorted low	AMPLIFIER 1 DTCS
B1432	421	Channel 3 speaker shorted high	AMPLIFIER 1 DTCS
81433	422	Channel 3 speaker shorted together	AMPLIFIER 1 DTCS
B1440	423	Channel 4 speaker open	AMPLIFIER 1 DTCS
B1441	424	Channel 4 speaker shorted low	AMPLIFIER 1 DTCS
B1442	425	Channel 4 speaker shorted high	AMPLIFIER 1 DTCS
B1443	426	Channel 4 speaker shorted together	AMPLIFIER 1 DTCS
B2102	4	System power output shorted high	SYSTEM POWER CIRCUIT DIAGNOSTICS
B2103	5	System power output shorted low	SYSTEM POWER CIRCUIT DIAGNOSTICS
B2104	6	System power output over- loaded	SYSTEM POWER CIRCUIT DIAGNOSTICS
B2106	257	L4 open output	HEADLAMP DIAGNOSTICS
B2107	225	L4 output shorted high	HEADLAMP DIAGNOSTICS
B2108	226	L4 output shorted low	HEADLAMP DIAGNOSTICS
B2109	227	L4 output overloaded	HEADLAMP DIAGNOSTICS
B2112	132	ACC output shorted high	ACC CIRCUIT DIAGNOSTICS
B2113	134	ACC output shorted low	ACC CIRCUIT DIAGNOSTICS
B2114	136	ACC output overloaded	ACC CIRCUIT DIAGNOSTICS
B2116	92	Fuel pump output open	FUEL PUMP DIAGNOSTICS
B2117	93	Fuel pump output shorted high	FUEL PUMP DIAGNOSTICS
B2118	94	Fuel pump output shorted low	FUEL PUMP DIAGNOSTICS
B2119	95	Fuel pump output overloaded	FUEL PUMP DIAGNOSTICS
B2121	58	Starter output open	STARTER OUTPUT DTCS
B2122	59	Starter output shorted high	STARTER OUTPUT DTCS
B2123	60	Starter output shorted low	STARTER OUTPUT DTCS
B2124	61	Starter output overloaded	STARTER OUTPUT DTCS
B2127	243	E4 output shorted high	HORN DIAGNOSTICS
B2128	244	E4 output shorted low	HORN DIAGNOSTICS
B2129	245	E4 output overloaded	HORN DIAGNOSTICS
B2131	233	High beam open output	HEADLAMP DIAGNOSTICS
B2132	234	High beam output shorted high	HEADLAMP DIAGNOSTICS
B2133	235	High beam output shorted low	HEADLAMP DIAGNOSTICS
B2134	236	High beam output overloaded	HEADLAMP DIAGNOSTICS
B2136	229	Low beam open output	HEADLAMP DIAGNOSTICS
B2137	230	Low beam output shorted high	HEADLAMP DIAGNOSTICS
B2138	231	Low beam output shorted low	HEADLAMP DIAGNOSTICS
B2139	232	Low beam output overloaded	HEADLAMP DIAGNOSTICS
B2141	207	Left front turn signal output open	FRONT TURN SIGNAL DIAGNOSTICS
B2143	214	Left front turn signal output shorted low	FRONT TURN SIGNAL DIAGNOST ICS
B2144	215	Left front turn signal output overloaded	FRONT TURN SIGNAL DIAGNOST ICS
B2146	216	Right front turn signal output open	FRONT TURN SIGNAL DIAGNOSTICS
B2148	217	Right front turn signal output shorted low	FRONT TURN SIGNAL DIAGNOST ICS
B2149	218	Right front turn signal output overloaded	FRONT TURN SIGNAL DIAGNOST ICS
82151	219	Left rear turn signal output open	REAR TURN SIGNAL DIAGNOSTICS
82153	220	Left rear turn signal output shorted low	REAR TURN SIGNAL DIAGNOST ICS
B2154	221	Left rear turn signal output overloaded	REAR TURN SIGNAL DIAGNOSTICS
B2156	222	Right rear turn signal output open	REAR TURN SIGNAL DIAGNOSTICS
B2158	223	Right rear turn signal output shorted low	REAR TURN SIGNAL DIAGNOST ICS
B2159	224	Right rear turn signal output overloader	REAR TURN SIGNAL DIAGNOST ICS
B2161	198	Brake lamp output open	STOP LAMP DIAGNOSTICS
B2163	199	Brake lamp output shorted low	STOP LAMP DIAGNOSTICS
B2164	200	Brake lamp output overloaded	STOP LAMP DIAGNOSTICS
B2168	172	Running lights output shorted low	RUNNING LAMP DIAGNOSTICS
B2169	173	Running lights output over-loaded	RUNNING LAMP DIAGNOSTICS
B2172	237	H2 output shorted high	ALARM DIAGNOSTICS
B2173	238	H2 output shorted low	ALARM DIAGNOSTICS
82176	239	Security antenna output open	SECURITY ANTENNA DIAGNOSTICS
B2177	240	Security antenna output shorted high	SECURITY ANTENNA DIAGNOSTICS
B2178	241	Security antenna output shorted low	SECURITY ANTENNA DIAGNOSTICS
B2183	249	G2 output shorted low	ADDITIONAL OUTPUT DIAGNOSTICS
B2188	254	G3 output shorted low	ADDITIONAL OUTPUT DIAGNOSTICS
B2193	257	H4 output shorted low	ADDITIONAL OUTPUT DIAGNOSTICS
B2198	259	H3 output shorted low	ADDITIONAL OUTPUT DIAGNOSTICS
B2201	52	IGN switch off w/VSS	IGN SWITCH DIAGNOSTICS
B2202	53	Ignition switch accy with vehicle speed	IGN SWITCH DIAGNOSTICS
B2203	50	Ignition switch input shorted low	IGN SWITCH DIAGNOSTICS
B2206	51	Run/stop switch input open/shorted high	ENGINE STOP SWITCH DIAGNOSTICS
B2208	54	Run/stop switch input shorted low	ENGINE STOP SWITCH DIAGNOSTICS
B2210	55	Run/stop switch inputs open both	SWITCH DIAGNOSTICS
B2212	56	Run/stop switch inputs both closed	SWITCH DIAGNOSTICS
82218	131	Neutral switch shorted low	NEUTRAL SWITCH DIAGNOSTICS
B2223	197	Rear brake switch shorted low (light on)	STOP LAMP DIAGNOSTICS
B2226	247	BAS input open	BCM not configured properly.
B2228	250	BAS input shorted low	BCM not configured properly.
B2231	312	Fork locked w/VSS	BCM not configured properly. This DTC should only apply to CVO models.
B2232	313	Fork lock shorted high	BCM not configured properly. This DTC should only apply to CVO models.
B2233	314	Fork lock shorted low	BCM not configured properly. This DTC should only apply to CVO models.
B2234	315	Fork lock detected w/option disabled	BCM not configured properly. This DTC should only apply to CVO models.
B2235	316	Fork lock configuration invalid	BCM not configured properly. This DTC should only apply to CVO models.
B2250	128	Clutch switch stuck	SWITCH DIAGNOSTICS
B2251	242	Horn switch stuck	SWITCH DIAGNOSTICS
B2252	437	High beam switch stuck	SWITCH DIAGNOSTICS
B2253	228	FTP switch stuck	SWITCH DIAGNOSTICS
B2254	203	Left turn switch stuck	SWITCH DIAGNOSTICS
B2255	246	Trip switch stuck	Trip Odometer Functions Inoperative, DTC 82255
B2256	208	LHCM police siren power switch stuck	BCM not configured properly. This DTC should only apply to Police models.
B2257	209	LHCM police siren wail power switch stuck	BCM not configured properly. This DTC should only apply to Police models.
B2258	210	LHCM police siren yelp switch stuck	BCM not configured properly. This DTC should only apply to Police models.
B2260	57	Start switch stuck	SWITCH DIAGNOSTICS
B2261	204	Right switch stuck turn	SWITCH DIAGNOSTICS
B2262	196	Front switch stuck brake	SWITCH DIAGNOSTICS
B2263	202	Hazard switch stuck	SWITCH DIAGNOSTICS
B2264	211	RHCM police lights power switch stuck	BCM not configured properly. This DTC should only apply to Police models.
B2265	212	RHCM police lights front switch stuck	BCM not configured properly. This DTC should only apply to Police models.
B2266	213	RHCM police lights rear switch stuck	BCM not configured properly. This DTCshould only apply to Police models.
B2270	27	BCM internal error	SWITCH DIAGNOSTICS
B2271	26	BCM voltage low	BCM VOLTAGE DIAGNOSTICS
B2272	33	BCM/IM voltage high	BCM VOLTAGE DIAGNOSTICS
B2274	49	Constant battery line error	Odometer Self-Diagnostic Inoperative: DTC 00001, 00002, U0011, B2274
C0562	38	ABS voltage low	ABS VOLTAGE DIAGNOSTICS
C0563	40	ABS voltage high	ABS VOLTAGE DIAGNOSTICS
C1014	183	ABS ECU relay error	INTERNAL FAULT DIAGNOSTICS
C1021	191	ABS front WSS always zero	WSS DIAGNOSTICS
C1023	192	ABS rear WSS always zero	WSS DIAGNOSTICS
C1025	194	ABS front wheel speed intermittent	WSS DIAGNOSTICS
C1027	195	ABS rear wheel speed intermittent	WSS DIAGNOSTICS
C1029	193	ABS wheel speed difference too high	WSS DIAGNOSTICS
C1032	189	ABS front wheel speed circuit open shorted	WSS DIAGNOSTICS
C1034	190	ABS rear wheel speed circuit open shorted	WSS DIAGNOSTICS
C1040	184	ABS pump/motor error	INTERNAL FAULT DIAGNOSTICS
C1055	39	ABS ECU internal error	INTERNAL FAULT DIAGNOSTICS
C1061	185	ABS front apply solenoid circuit open/high resistance	INTERNAL FAULT DIAGNOSTICS
C1062	187	ABS front release solenoid circuit open/high resistance	INTERNAL FAULT DIAGNOSTICS
C1065	186	ABS rear apply solenoid circuit open/high resistance	INTERNAL FAULT DIAGNOSTICS
C1066	188	ABS rear release solenoid circuit open/high resistance	INTERNAL FAULT DIAGNOSTICS
C1071	283	Rear prime valve error	INTERNAL FAULT DIAGNOSTICS
C1072	284	Rear isolation valve error	INTERNAL FAULT DIAGNOSTICS
C1073	285	Front isolation valve error	INTERNAL FAULT DIAGNOSTICS
C1074	286	Front prime valve error	INTERNAL FAULT DIAGNOSTICS
C1075	287	Front linked inlet valve error	INTERNAL FAULT DIAGNOSTICS
C1076	288	Front linked outlet valve error	INTERNAL FAULT DIAGNOSTICS
C1077	289	Front circuit pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1078	290	Rear circuit pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1081	291	Front master pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1082	292	Front master pressure sensor offset error	INTERNAL FAULT DIAGNOSTICS
C1083	293	Front wheel pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1084	294	Front wheel pressure sensor offset error	INTERNAL FAULT DIAGNOSTICS
C1085	295	Rear master pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1086	296	Rear master pressure sensor offset error	INTERNAL FAULT DIAGNOSTICS
C1087	297	Rear wheel pressure sensor error	INTERNAL FAULT DIAGNOSTICS
C1088	298	Rear wheel pressure sensor offset error	INTERNAL FAULT DIAGNOSTICS
C1089	299	Pressure sensor external supply error	INTERNAL FAULT DIAGNOSTICS
C1159	43	ABS invalid stored	VIN INVALID VIN DIAGNOSTICS
C1178	41	ABS no VIN received from	ECM INVALID VIN DIAGNOSTICS
C1184	42	ABS invalid VIN from	ECM INVALID VIN DIAGNOSTICS
C1195	266	Wake up error	INTERNAL FAULT DIAGNOSTICS
P0031	153	Front HO2S open low	HO2S DIAGNOSTICS
P0032	156	Front HO2S shorted high	HO2S DIAGNOSTICS
P0051	154	Rear HO2S open low	HO2S DIAGNOSTICS
P0052	155	Rear HO2S shorted high	HO2S DIAGNOSTICS
P0072	112	AAT sensor low	AAT SENSOR DIAGNOSTICS
P0073	113	AAT sensor high open	MT SENSOR DIAGNOSTICS
P0107	100	MAP sensor failed low open	TMAP SENSOR DIAGNOSTICS
P0108	101	MAP sensor failed high/open port	TMAP SENSOR DIAGNOSTICS
P0112	123	IAT sensor shorted low	TMAP SENSOR DIAGNOSTICS
P0113	125	IAT sensor high open	TMAP SENSOR DIAGNOSTICS
P0117	102	ET sensor shorted low	ET SENSOR DIAGNOSTICS
P0118	107	ET sensor high open	ET SENSOR DIAGNOSTICS
P0120	76	TPS 1 range error	TCA DIAGNOSTICS
P0122	74	TPS 1 low	TCA DIAGNOSTICS
P0123	75	TPS 1 high open	TCA DIAGNOSTICS
P0131	157	02 sensor low/engine lean (front)	HO2S DIAGNOSTICS
P0132	159	Engine running rich (front)	HO2S DIAGNOSTICS
P0134	161	Oxygen sensor high/open (front)	HO2S DIAGNOSTICS
P0151	158	02 sensor low/engine lean (rear)	HO2S DIAGNOSTICS
P0152	160	Engine running rich (rear)	HO2S DIAGNOSTICS
P0154	162	02 sensor high/open (rear)	HO2S DIAGNOSTICS
P0220	79	TPS 2 range error	TCA DIAGNOSTICS
P0222	77	TPS 2 open low	TCA DIAGNOSTICS
P0223	78	TPS 2 high	TCA DIAGNOSTICS
P0261	96	Fuel injector low/open (front)	FUEL INJECTOR DIAGNOSTICS
P0262	97	Fuel injector shorted high (front)	FUEL INJECTOR DIAGNOSTICS
P0264	98	Fuel injector low/open (rear)	FUEL INJECTOR DIAGNOSTICS
P0265	99	Fuel injector shorted high (rear)	FUEL INJECTOR DIAGNOSTICS
P0325	139	Knock sensor front open circuit	KNOCK SENSOR DIAGNOSTICS
P0327	140	Knock sensor front circuit low	KNOCK SENSOR DIAGNOSTICS
P0328	141	Knock sensor front circuit high	KNOCK SENSOR DIAGNOSTICS
P0330	142	Knock sensor rear open circuit	KNOCK SENSOR DIAGNOSTICS
P0332	143	Knock sensor rear circuit low	KNOCK SENSOR DIAGNOSTICS
P0333	144	Knock sensor rear circuit high	KNOCK SENSOR DIAGNOSTICS
P0371	65	CKP sensor wrong number of pulses	CKP SENSOR DIAGNOSTICS
P0374	64	CKP sensor no pulses	CKP SENSOR DIAGNOSTICS
P0444	147	Purge solenoid low open	PURGE SOLENOID DIAGNOSTICS
P0445	148	Purge solenoid shorted high	PURGE SOLENOID DIAGNOSTICS
P0462	174	Fuel sender shorted low	FUEL GAUGE AND SENDER DIAGNOSTICS
P0463	175	Fuel sender shorted high/open	FUEL GAUGE AND SENDER DIAGNOSTICS
P0502	137	VSS failed low	PURGE SOLENOID DIAGNOSTICS
P0503	138	VSS	failed high VSS DIAGNOSTICS
P0505	148	Idle speed control - unstable	IDLE SPEED CONTROL DIAGNOSTICS
P0522	168	Engine oil pressure sensor/switch shorted low	INDICATOR LAMPS
P0523	169	Engine oil pressure sensor/switch shorted high open	INDICATOR LAMPS
P0562	127	ECM voltage low BATTERY	AND SYSTEM VOLTAGE DIAGNOSTICS
P0572	202	Brake switch low	BRAKE SWITCH DIAGNOSTICS
P0577	163	Cruise control	input error Cruise Control
P0603	29	ECM EEPROM memory error	ECM INTERNAL DIAGNOSTICS
P0605	28	ECM FLASH memory error	ECM INTERNAL DIAGNOSTICS
P0641	62	5 Volt reference out of range	5V REFERENCE DIAGNOSTICS
P0651	63	5 Volt reference 2 out of range	5V REFERENCE DIAGNOSTICS
P0693	119	Chassis fan control circuit shorted low	CHASSIS FAN DIAGNOSTICS
P0694	120	Chassis fan control circuit shorted high	CHASSIS FAN DIAGNOSTICS
P1009	32	VTD disabled fuel due to bad password	DTC P1009
P1017	103	ET indicates overheating	DTC P1017
P1019	106	ECT difference (high temp)	ECT SENSOR DIAGNOSTICS
P1270	67	TGS 2 ND validation error	DTC P1270
P1501	166	JSS low	JSS DIAGNOSTICS
P1502	167	JSS high open	JSS DIAGNOSTICS
P1505	445	Power limit violation	HESITATION OR LOSS OF POWER
P1510	447	ETC limited performance mode	ETC MANAGEMENT DIAGNOSTICS
P1511	448	ETC power management mode	ETC MANAGEMENT DIAGNOSTICS
P1512	449	ETC forced idle mode	ETC MANAGEMENT DIAGNOSTICS
P1514	87	ETC airflow error	ETC ERROR DIAGNOSTICS
P1600	66	ETC watchdog error	ETC ERROR DIAGNOSTICS
P1655	164	ACR solenoid open low	ACR Diagnostics
P1656	165	ACR solenoid shorted high	ACR Diagnostics
P1691	115	Cooling fan left low open	COOLING FAN DIAGNOSTICS
P1692	116	Cooling fan left shorted high	COOLING FAN DIAGNOSTICS
P1693	117	Cooling fan right low open	COOLING FAN DIAGNOSTICS
P1694	118	Cooling fan right shorted high	COOLING FAN DIAGNOSTICS
P2100	82	ETC driver open circuit	ETC ACTUATOR DIAGNOSTICS
P2101	83	ETC actuation error	ETC ACTUATOR DIAGNOSTICS
P2102	84	ETC driver shorted low	ETC ACTUATOR DIAGNOSTICS
P2103	85	ETC driver shorted high	ETC ACTUATOR DIAGNOSTICS
P2105	446	ETC forced shutdown mode	DTC P2105, P2107
P2107	68	ETC driver internal error	DTC P2105, P2107
P2119	81	ETC actuator return error	DTC P2119
P2122	69	TGS 1 low/open	TGS DIAGNOSTICS
P2123	70	TGS 1 high	TGS DIAGNOSTICS
P2127	71	TGS 2 low/open	TGS DIAGNOSTICS
P2128	72	TGS 2 high	TGS DIAGNOSTICS
P2135	80	TPS correlation error	CORRELATION ERROR DIAGNOSTICS
P2138	73	TGS correlation error	CORRELATION ERROR DIAGNOSTICS
P2176	86	ETC zero position learning error	DTC P2176
P2184	121	ECT sensor low	ECT SENSOR DIAGNOSTICS
P2185	122	ECT sensor high	ECT SENSOR DIAGNOSTICS
P2300	88	Ignition coil driver low/open (front)	IGN COIL DRIVER DIAGNOSTICS
P2301	89	Ignition coil driver shorted high (front)	IGN COIL DRIVER DIAGNOSTICS
P2303	90	Ignition coil driver low/open (rear)	IGN COIL DRIVER DIAGNOSTICS
P2304	91	Ignition coil driver shorted high (rear)	IGN COIL DRIVER DIAGNOSTICS
P2602	104	Coolant pump "A" control circuit low	COOLING PUMP DIAGNOSTICS
P2603	105	Coolant pump "A" control circuit high	COOLING PUMP DIAGNOSTICS
U0001	1	CAN BUS error	Odometer Self-Diagnostic Inoperative: DTC 00001, 00002, U0011, B2274
U0002	16	CAN comm bus perf error	Odometer Self Diagnostic Inoperative: DTC 00001, 00002, U0011, 82274
U0003	13	Network management monitoring	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0011	2	CAN bus low shorted to CAN bus high	Odometer Self-Diagnostic Inoperative: DTC 00001, 00002, 00011, B2274
U0100	7	Lost comm w/ECM	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0121	11	Lost comm w/ABS	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0140	3	Lost comm w/BCM	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0141	9	Lost comm w/LHCM	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0142	8	Lost comm w/RHCM	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0156	10	Lost comm w/speedo	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0158	180	Lost comm w/fuel gauge	SECONDARY COMMUNICATION DIAGNOSTICS
U0159	181	Lost comm w/volt gauge	SECONDARY COMMUNICATION DIAGNOSTICS
U0160	179	Lost comm w/fuel and volt gauges	SECONDARY COMMUNICATION DIAGNOSTICS
U0184	323	Lost comm w/radio	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U0185	325	Lost comm w/AMP	1 AMP COMMUNICATION DIAGNOSTICS
U0186	326	Lost comm w/AMP	2 AMP COMMUNICATION DIAGNOSTICS
U0187	20	Lost comm w/AMP	3 AMP COMMUNICATION DIAGNOSTICS
U0188	21	Lost comm w/AMP	4 AMP COMMUNICATION DIAGNOSTICS
U0300	15	Internal control module software incompatibility	NO VEHICLE POWER OR LOST COMMUNICATION DTCS
U1302	324	ACC bus pert error	SECONDARY COMMUNICATION DIAGNOSTICS
U1401	331	Lost comm w CB	SECONDARY COMMUNICATION DIAGNOSTICS
U1401	331	Lost comm w CB	COMMUNICATION DIAGNOSTICS
U1405	450	ACC bus lost comm w/ WIM	Code used to support P&A parts

Known as the 'American Classic,' Harley-Davidson was founded in 1903 in Wisconsin, USA. One of the two major American brands to survive the harsh Great Depression, the company has built a reputation for its cruiser and bagger-touring style motorcycles featuring large-displacement V-twin engines.

Harley-Davidson Models With Service Repair Manuals:

Common abbreviations and their meanings below:

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

These abbreviations, and the accompanying list of trouble codes, can be a great start when your Harley-Davidson check engine light comes on. As mentioned above, if you are not comfortable with electrical diagnostic work, a dealership or qualified technician can offer assistance. Please keep in mind that even though you have the ability to clear a DTC using the onboard diagnostic feature, you shouldn't clear the code prior to your service appointment. Let the technician view and clear the codes as they troubleshoot the issue.

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