Below is a list of comprehensive list of diagnostic codes that you may come across on your Harley-Davidson.
P = ECM / ICM (Engine / Ignition Control Module)
S = TSM / TSSM (Turn Signal / Turn Signal Security Module)
SP = Speedometer
t = Tachometer
POO51 | Heater Control Circuit 02 Sensor Low |
PO106 | Map Sensor Rate of Range Error |
P0107 | Map Sensor Failed Open/Low |
P0108 | Map Sensor Failed High |
P0112 | IAT Sensor Voltage Low |
P0113 | IAT Sensor Voltage Open / High |
P0117 | ET Sensor Voltage Low |
P0118 | ET Sensor Voltage Open / High |
P0120 | TPS1 Range Error TPS |
P0122 | TPS1 Low TPS |
P0123 | TPS1 High / Open TPS |
P0131 | Front 02 Sensor Low (lean) |
P0132 | Front 02 Sensor High (rich) |
P0134 | Front 02 Sensor Open / Not Responding |
P0151 | Rear 02 Sensor Low (lean) |
P0152 | Rear 02 Sensor High (rich) |
P0154 | Rear 02 Sensor Open / Not Responding |
P0220 | TPS2 Range Error |
P0222 | TPS2 Low TPS |
P0223 | TPS2 High/Open |
P0261 | Front Injector Open/Low |
P0262 | Front Injector High |
P0263 | Rear Injector Open/Low |
P0264 | Rear Injector High (CAN-Bus) |
P0264 | Rear Injector Open/Low |
P0265 | Rear Injector High |
P0371 | Crank Position Sensor, Too Many Pulses |
P0372 | Crank Position Sensor, Too Few Pulses |
P0373 | CKP Sensor Intermittent |
P0374 | CKP Sensor Not Detected |
P0444 | Purge Solenoid (Evap. Canister) Open/Low |
P0445 | Purge Solenoid (Evap. Canister) High |
P0501 | VSS Low |
P0502 | VSS High/Open (Can-Bus) |
P0502 | VSS Speed Failed Low |
P0503 | VSS Speed Failed High |
P0505 | Loss of Idle Speed Control |
P0506 | Idle Speed Control RPM Too Low |
P0507 | Idle Air Control System RPM Higher Than Expected |
P0562 | Battery Voltage Low |
P0563 | Battery Voltage High |
P0572 | Brake Switch Low |
P0577 | Cruise Control Input High |
P0602 | Calibration Memory Error |
P0603 | ECM EEPROM Failure |
P0604 | RAM Failure |
P0605 | ECM Flash Error |
P0607 | Converter Error |
P0641 | 5V+Vref 1 Out of Range |
P0651 | 5V+Vref 2 Out of Range |
P0661 | Intake Solenoid Low/Open |
P0662 | Intake Solenoid High/Shorted |
P1001 | System Relay Coil Open/Low |
P1002 | System Relay Coil High/Shorted |
P1003 | System Relay Contacts Open |
P1004 | System Relay Contacts Closed |
P1009 | Incorrect Password |
P1010 | Missing Password |
P1270 | TGS Validation Error |
P1351 | Front Ignition Open/Low |
P1352 | Front Ignition Coil High/Shorted |
P1353 | Front Cylinder No Combustion |
P1354 | Rear Ignition Coil Open/Low |
P1355 | Rear Ignition Coil High/Shorted |
P1356 | Rear Cylinder No Combustion |
P1357 | Front Intermittent Secondary Combustion |
P1358 | Rear Intermittent Secondary Combustion |
P1475 | Exhaust Actuation Position Error |
P1477 | Exhaust Actuator Open/Low |
P1478 | Exhaust Actuator Shorted/High |
P1501 | Jiffy Stand Sensor Low |
P1502 | Jiffy Stand Sensor High |
P1510 | EFI Limited Performance Mode (TBW) |
P1511 | EFI Power Management Mode |
P1512 | EFI Forced Idle Mode |
P1514 | Air Flow Fault (TBW) |
P1600 | EFI Module Processor Internal Error |
P1632 | Odometer Learned Up |
P2100 | EFI TCA Motor Circuit Open (TBW) |
P2101 | EFI TCA Motor Circuit Range/Performance |
P2102 | EFI TCA Motor Circuit Low |
P2103 | EFI TCA Motor Circuit High |
P2105 | EFI Forced Engine Shutdown |
P2107 | EFI Module Control Processor Internal Fault |
P2119 | EFI Motor Throttle Body Range Performance (TBW) |
P2122 | TGS1 Low/Open |
P2123 | TGS1 High |
P2127 | TGS2 Low/Open |
P2128 | TGS2 High |
P2135 | TPS Voltage Correlation Error |
P2138 | TGS Voltage Correlation Error |
P2176 | EFI Closed Postion Not Learned |
P2300 | Front Ignition Coil Driver Low/Open |
P2301 | Front Ignition Coil Driver High/Shortened |
P2303 | Rear Ignition Coil Driver Low/Open |
P2304 | Rear Ignition Coil Driver High/Shortened |
C0562 | Device Voltage Low |
C0563 | Device Voltage High |
C1014 | ECU Internal Fault ABS |
C1017 | Pump Motor Power Circuit Fault |
C1018 | Pump Motor Ground High Resistance Fault |
C1021 | Front Wheel Speed Sensor Equals Zero |
C1023 | Rear Wheel Speed Sensor Equals Zero |
C1025 | Front Wheel Speed Signal Intermittent |
C1027 | Front Wheel Speed Frequency Out Of Range |
C1032 | Front Wheel Speed Sensor Open or Shorted |
C1034 | Rear Wheel Speed Sensor Open or Shorted |
C1041 | Rear Actuator Circuit Low/Open |
C1042 | Front Actuator Circuit Open |
C1043 | Pump Motor Stalled |
C1044 | Rear Actuator Circuit Open |
C1052 | Rear Actuator Circuit High |
C1055 | ABS ECU Internal Fault |
C1066 | ECU Internal Fault |
C1094 | Front Brake Switch Always On |
C1095 | Front Brake Switch Open |
C1102 | Rear Actuator Motor Stalled |
C1118 | ECU Internal Fault |
C1121 | ECU Internal Fault |
C1151 | Front Wheel Release Too Long |
C1153 | Rear Wheel Release Too Long |
C1158 | Calibration Programming Required |
C1178 | No VIN Received From ECM |
C1184 | VIN Does Not Match ABS ECU Calibration |
C1192 | Front Actuator Circuit High |
C1193 | Front Actuator Motor Stalled/td> |
C1206 | Front Wheel Speed Sensor Frequency Out of Range |
C1207 | Rear Wheel Speed Signal Intermittent |
C1208 | Rear Wheel Speed Sensor Frequency Out of Range |
C1212 | Front or Rear Brake not Applied With Decel |
C1214 | Rear Brake Switch Always On |
C1216 | Rear Brake Switch Open |
C1222 | ABS Voltage Low Terminal 11 |
C1223 | ABS Voltage Low Terminal 20 |
C1224 | Front Actuator Power Shorted High |
C1225 | Rear Actuator Power Shorted High |
C1561 | Front Apply Solenoid Circuit Open or High |
C1562 | Front Apply Solenoid Circuit Shorted Low |
C1563 | Front Solenoid Circuit Shorted High |
C1564 | Front Release Solenoid Circuit Open or High |
C1565 | Front Release Solenoid Circuit Shorted Low |
C1567 | Rear Apply Solenoid Circuit Open or High |
C1568 | Rear Apply Solenoid Circuit Shorted Low |
C1571 | Rear Solenoid Circuit Shorted High |
C1572 | Rear Release Solenoid Circuit Open or High Resistance |
C1573 | Rear Realease Solenoid Circuit Shorted Low |
B0563 | Battery Voltage High TSM / TSSM |
B1004 | Fuel Level Sending Unit Low Instruments |
B1005 | Fuel Level Sending Unit High / Open |
B1006 | Accessory Line Overvoltage |
B1007 | Ignition Line Overvoltage Instruments |
B1008 | Reset Switch Closed Instruments |
B1101 | LHCM Turn Signal Bulb Out |
B1103 | LHCM Internal Fault |
B1121 | Left Turn Output Fault TSM / TSSM |
B1122 | Right Turn Output Fault TSM / TSSM |
B1123 | Left Turn Output Short to Ground TSM/TSSM |
B1124 | Right Turn Output Short to Ground TSM/TSSM |
B1125 | Left Turn Output Short to Battery TSM/TSSM |
B1126 | Right Turn Output Short to Battery TSM/TSSM |
B1131 | Alarm Output Low TSSM |
B1132 | Alarm Output High TSSM |
B1134 | Starter Output High TSM/TSSM |
B1135 | Accelerometer Fault TSM/TSSM |
B1136 | Accelerometer Tip Test Error TSSM |
B1141 | Ignition Switch Open / Low TSSM |
B1142 | Smart Security System Internal Fault TSSM |
B1143 | Security Antenna Short To Ground TSSM |
B1144 | Security Antenna Short To Battery TSSM |
B1145 | Security Antenna Open TSSM |
B1151 | (Sidecar) BAS Low TSM/TSSM |
B1151 | RHCM Turn Signal Bulb Out |
B1152 | (Sidecar) BAS High TSM/TSSM |
B1153 | (Sidecar) BAS Out Of Range TSM/TSSM |
B1153 | RHCM Internal Fault |
B1154 | Clutch Switch Input Short To Ground |
B1155 | Neutral Switch Input Short To Battery |
B1200 | Instrument Internal Fault |
B1210 | Fuel Sender Shorted Low / Fuel Gauge Circuit |
B1211 | Fuel Sender Shorted High / Open |
B2102 | System Power Output Shorted High |
B2103 | System Power Output Shorted Low |
B2104 | System Power Output Overloaded |
B2107 | Front Position / Running Power Output Shorted High |
B2108 | Front Position / Running Power Output Shorted Low |
B2109 | Front Position / Running Power Output Overloaded |
B2112 | Accessory Output Shorted High |
B2113 | Accessory Output Shorted Low |
B2114 | Accessory Output Overloaded |
B2116 | Fuel Pump Output Open |
B2117 | Fuel Pump Output Shorted High |
B2118 | Fuel Pump Output Shorted Low |
B2119 | Fuel Pump Output Overloaded |
B2121 | Starter Output Open/BCM Malfunction |
B2122 | Starter Output Shorted High |
B2123 | Starter Output Shorted Low |
B2124 | Starter Output Overloaded |
B2126 | Horn Output Open |
B2127 | Horn Output Shorted High |
B2128 | Horn Output Shorted Low |
B2129 | Horn Output Overloaded |
B2131 | High Beam Output Open |
B2132 | High Beam Output Shorted High |
B2133 | High Beam Output Shorted Low |
B2134 | High Beam Output Overloaded |
B2136 | Low Beam Output Open |
B2137 | Low Beam Output Shorted High |
B2138 | Low Beam Output Shorted Low |
B2139 | Low Beam Output Overloaded |
B2141 | Left Front Turn Signal Output Open |
B2143 | Left Front Turn Signal Output Shorted Low |
B2144 | Left Front Turn Signal Output Overloaded |
B2146 | Right Front Turn Signal Output Open |
B2148 | Right Front Turn Signal Output Shorted Low |
B2149 | Right Front Turn Signal Output Overloaded |
B2151 | Left Rear Turn Signal Output Open |
B2153 | Left Rear Turn Signal Output Shorted Low |
B2154 | Left Rear Turn Signal Output Overloaded |
B2156 | Right Rear Turn Signal Output Open |
B2158 | Right Rear Turn Signal Output Shorted Low |
B2159 | Right Rear Turn Signal Output Overloaded |
B2161 | Brake Lamp Output Open |
B2163 | Brake Lamp Output Shorted Low |
B2164 | Brake Lamp Output Overloaded |
B2166 | Running Lights Output Open |
B2168 | Running Lights Output Shorted High |
B2169 | Running Lights Output Shorted Low |
B2172 | Security Siren Output Shorted High |
B2173 | Security Siren Output Shorted Low |
B2176 | Security Antenna Output Open |
B2177 | Security Antenna Output Shorted High |
B2178 | Security Antenna Output Shorted Low |
B2203 | Ignition Switch Input Shorted Low |
B2206 | Engine Stop Switch Input Open/Shorted High |
B2208 | Engine Stop Switch Input Shorted Low |
B2218 | Neutral Switch Shorted Low |
B2223 | Rear Brake Switch Shorted Low |
B2250 | Clutch Switch Stuck |
B2251 | Horn Switch Stuck |
B2252 | High Beam Switch Stuck |
B2253 | Low Beam Switch Stuck |
B2254 | Left Turn Switch Stuck |
B2255 | Trip Switch Stuck |
B2260 | Start Switch Stuck |
B2261 | Right Turn Switch Stuck |
B2262 | Front Brake Switch Stuck |
B2263 | Hazard Switch Stuck |
B2270 | BCM Internal Fault |
B2271 | BCM Low Voltage |
B2272 | BCM or Speedometer Voltage High |
B2274 | Constant Battery Line Fault |
U0001 | CAN bus Fault |
U0011 | CAN bus Low Shorted / Can bus High |
U0100 | Lost Communication With ECM |
U0121 | Lost Communication With ABS |
U0140 | Lost Communication With BCM |
U0141 | Lost Communication With LHCM |
U0142 | Lost Communication With RHCM |
U0156 | Lost Communication With Speedometer |
U1016 | Loss of ICM/ECM Serial Data |
U1040 | Loss OF Communication With ABS |
U1064 | Loss Of TSM/TSSM Serial Data |
U1097 | Loss Of Speedometer Serial Data |
U1255 | Missing Message at Speedometer EFI |
U1300 | Serial Data Low |
U1301 | Serial Data Open/High |
U1302 | Infotainment Bus Off |
U1306 | Infotainment Bus Lost Communication With Handsfree Phone |
U1307 | Infotainment Bus Lost Communication With CB |
U1308 | Infotainment Bus Lost Communication With Future |
U1312 | Infotainment Bus Lost Communication With Future |
U1313 | Infotainment Bus Lost Communication With Radio Satellite |
U1314 | Infotainment Bus Lost Communication With Navigation |
U1317 | Infotainment Bus Lost Communication With High-Out Amplifier |
B2006 | Radio Switch Stuck or Open |
B2007 | Handlebar Switch Shorted High |
B2008 | Handlebar Switch Shorted Low |
B2009 | Handlebar Switch Stuck or Open |
B2010 | Passenger Switch Shorted High |
B2011 | Passenger Switch Shorted Low |
B2012 | Passenger Switch Stuck or Open |
B2013 | Sidecar Switch Shorted High |
B2014 | Sidecar Switch Shorted Low |
B2015 | Sidecar Switch Stuck or Open |
B2016 | Front Speaker Shortened R1.0 Ohm When Setup |
B2017 | Front Speaker Opened R>100 Ohms Tested Once per Ignition Cycle Ignition ON after Ignition Off for 10 sec. |
B2018 | Front Speaker Shortened to Ground Ignition ON After Ignition OFF for 10 sec. |
B2019 | Front Speaker Shortened to Battery Ignition ON After Ignition OFF for 10 sec. |
B2020 | Rear Speaker Shortened R1.0 Ohm When Setup |
B2021 | Rear Speaker Opened R>100 Ohms Tested Once Per Ignition Cycle Ignition ON After Ignition |
B2022 | Rear Speaker Shortened to Ground Ignition ON After Ignition OFF for 10 sec. |
B2023 | Rear Speaker Shortened to Battery Ignition ON After Ignition OFF for 10 sec. |
B2024 | Sidecar Speaker Shortened R1.0 Ohm |
B2025 | Sidecar Speaker Opened R>100 Ohms Tested Once Per Ignition Cycle Ignition ON After Ignition OFF for 10 sec. |
B2026 | Sidecar Speaker Shortened to Ground Ignition ON After Ignition OFF for 10 sec. |
B2027 | Sidecar Speaker Shortened to Battery Ignition ON After Ignition OFF for 10 sec. |
Sensors and motor
Sensors and motorHarley-Davidson Fault Code Abbreviations
Sensors and motor
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
[/stag_one_half][stag_one_half_last] 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