Royal Enfield Thunderbird Fault Codes

Royal Enfield Thunderbird motorcycles have engines, which are made up of many different parts. These parts must work together in order for the engine to function. A problem with one of the parts can make the engine not run. There are many different parts that make up an engine. The following royal enfield thunderbird faults are the list of some of the parts of a motorcycle engine.

One of the most common issues with Royal Enfield Thunderbird motorcycle electrical systems is a clogged battery terminal. This can cause your ride to start having issues with the electrical components. Discolored terminals are often caused by a build-up of corrosion. This will prevent electrons from flowing properly, which reduces your ride’s electrical performance.

Royal Enfield Thunderbird Faults :

Engine management systems of Royal Enfield Thunderbird are responsible for monitoring a range of features and its warning light should go out a few seconds after ignition. The system's main job is to keep the engine running at peak performance by monitoring many parameters like coolant temperature, oil pressure, fuel level and air/fuel ratio. The system monitors these parameters continuously and alerts the driver if any of these parameters fall outside the predetermined limits.

We have listed below a few basic checks in case your motorcycle is not functioning. If in case the problem is not rectified after these checks, it is necessary to get the motorcycle checked by a Royal Enfield Authorised Dealer / Service Center to rectify the problem and to ensure trouble free performance.

Common Royal-Enfield Problems :

SymptomObservationsCheck for / Remedy
Engine does not start 1. Ignition/Engine stop switch is in OFF position
2. Very low / No fuel in the fuel tank.
3. Lights / horn very dim
4. Electricals not working
5. Engine Cranking but not starting
Switch ON Ignition / Engine stop switch
Turn fuel tap to reserve position / Fill Fuel
Weak/Discharged battery. Replace Battery
1. Battery completely dead. Replace battery
2. Fuse Blown. Replace appropriate fuse.
Note: If fuse blows again, contact Authorised Service Center.
Spark plug Cap/wire disconnected. Reconnect.
Engine Starts BUT shuts off immediatley Engine shuts off as soon as throttle is closed. Idling RPM setting in Carburetor is disturbed. Reset the Idling RPM screw in Carburetor.
Carburetor Flooded. Shut off fuel tap, gently tap Carburetor bottom and reopen fuel tap. Check if flooding has stopped
Engine Misfires & Runs Erratically / Stops 1. Typically happens after a Refill / Adulterated / Water in Fuel
2. Motorcycle driven in Low gear / High RPM / Crowded places for long time.
Drain out entire fuel and Refill with fresh fuel from a reputed filling station.
Excessive Engine temperature. Switch OFF Engine and allow to cool down.
Poor Pickup Engine RPM raises improportinately to motorcycle speed
Rear Chain excessively loose causing chain to slip on Sprocket.
Clutch is Slipping. Check for sticky clutch/ clutch not having any free play.
Adjust Rear chain to correct tension.

ROYAL-ENFIELD ABS (ANTI-LOCK BRAKING SYSTEM) EFI TROUBLE SHOOTING CODES

S.No.P Codes for ABSComponents monitored and malfunction type
15043 HFront wheel speed sensor Disconnection/ground Short/Uz Short
25042 H Front wheel speed sensor malfunction - Plausibility
35045 H Rear wheel speed sensor Disconnection/ground Short/Uz Short
45044 H Rear wheel speed sensor malfunction - Plausibility
55025 H Deviation between Wheel speeds (WSS_GENERIC)
65017 HFront Inlet Valve malfunction (EV)
75018 H Front Outlet Valve malfunction (AV)
85013 HRear Inlet Valve malfunction (EV)
95014 H Rear Outlet Valve malfunction (AV)
105035 H Pump Motor Malfunction
115019 H Valve Relay malfunction (Failsafe relay)
125055 H ECU malfunction
135052 H Power Supply Malfunction (Low Voltage)
145053 H Power Supply Malfunction (High Voltage)
155122 HVarcode EEPROM ReadError
165223 H VarCode EEPROM Out Of Range
175331 H Front Wheel Pressure sensor ohmic fault
185332 H Front wheel pressure sensor offset/Test Pulse/POT fault
195333 H External Supply for Pressure sensor failure

ROYAL-ENFIELD MIL BLINK CODES DESCRIPTION

MIL will glow continuous. Engine will start but not perform to its potential
MIL will glow continuous. Engine will NOT start but will crank

MIL BLINKMALFUNCATION INDICATION
Long 0 Short 6Throttle position sensor Malfunction
Long 0 Short 9Manifold Air Pressure sensor Malfunction
Long 1 Short 2Engine oil temperature sensor Malfunction
Long 1 Short 3Intake Air temperature sensor Malfunction
Long 1 Short 7O2/HEGO Sensor Malfunction
Long 4 Short 5O2 Sensor heater circuit Malfunction
Long 5 Short 4EXAI Circuit Malfunction
Long 6 Short 6Crankshaft position sensor Malfunction
Long 1 Short 5Roll over sensor Malfunction
Long 3 Short 3Fuel Injector Circuit Malfunction
Long 3 Short 7Ignition Coil Circuit Malfunction
Long 4 Short 1Fuel pump relay circuit Malfunction
Long 7 short 0Vehicle/Wheel speed sensor Malfunction( only for Continental GT Model)

ROYAL-ENFIELD DIAGNOSTIC TROUBLE CODES DESCRIPTION

Items Parameters Description DTC
Throttle position sensor TH Too low input voltage P0120
Throttle position sensor TH Too High input voltage P0123
Manifold Air Pressure sensor PM Too low input voltage P0107
Manifold Air Pressure sensor PM Too High input voltage P0105
Engine Oil Temperature Sensor TW Too low input voltage P0117
Engine Oil Temperature Sensor TW Too High input voltage P0115
Intake Air Temperature Sensor TA Too low input voltage P0112
Intake Air Temperature Sensor TA Too High input voltage P0110
Rollover Sensor RO Too low input voltage P1630
Rollover Sensor RO Too High input voltage P1630
O2 Sensor HG Short circuit to ground or open circuit (low or open) P0130
Fuel Injector IJ1 Short circuit to ground or open circuit P0201
Fuel Injector IJ1 Short circuit to Battery P0201
Ignition Coil IG1 Short circuit to ground or open circuit P0351
Ignition Coil IG1 Short circuit to Battery P0351
Fuel Pump Relay FLR Short circuit to ground or open circuit P0230
Fuel Pump Relay FLR Short circuit to Battery P0230
O2 sensor Heater HR Short circuit to ground or open circuit (low or open) P0030
Vehicle / Wheel speed sensor VSP The Sensor circuit malfunction P0500
AIR System Switching Valve "A" Circuit EXAI Short circuit to ground or open circuit (low or open) P0412
Crankshaft position sensor CRK The Sensor circuit malfunction P0335

Royal Enfield Thunderbird Motorcycle Problems :

  • Royal Enfield thunderbird after fire
  • Royal Enfield thunderbird air cleaner clogged, poorly sealed, or missing
  • Royal Enfield thunderbird air cleaner element clogged
  • Royal Enfield thunderbird air duct loose
  • Royal Enfield thunderbird air suction valve trouble
  • Royal Enfield thunderbird air switching valve trouble
  • Royal Enfield thunderbird backfiring when deceleration
  • Royal Enfield thunderbird cracked or obstructed intake air pressure sensor
  • Royal Enfield thunderbird crankshaft sensor trouble
  • Royal Enfield thunderbird eCU ground and power supply trouble
  • Royal Enfield thunderbird eCU trouble
  • Royal Enfield thunderbird engine overheating - Water temperature sensor or crankshaft sensor trouble
  • Royal Enfield thunderbird engine stalls easily
  • Royal Enfield thunderbird engine vacuum not synchronizing
  • Royal Enfield thunderbird exhaust Smokes Excessively
  • Royal Enfield thunderbird firing incorrect
  • Royal Enfield thunderbird fuel filter clogged
  • Royal Enfield thunderbird fuel injector clogged
  • Royal Enfield thunderbird fuel injector O-ring damage
  • Royal Enfield thunderbird fuel injector trouble
  • Royal Enfield thunderbird fuel line clogged
  • Royal Enfield thunderbird fuel poor quality or incorrect
  • Royal Enfield thunderbird fuel pressure regulator trouble
  • Royal Enfield thunderbird fuel pressure too low or too high
  • Royal Enfield thunderbird fuel pump bearings may wear. Replace the fuel pump
  • Royal Enfield thunderbird fuel pump not operating
  • Royal Enfield thunderbird fuel pump operates intermittently and often DFI fuse blows
  • Royal Enfield thunderbird fuel pump relay trouble
  • Royal Enfield thunderbird fuel pump trouble
  • Royal Enfield thunderbird fuel/air mixture incorrect
  • Royal Enfield thunderbird fuel/air mixture incorrect
  • Royal Enfield thunderbird gear position sensor, starter lockout or side stand switch trouble
  • Royal Enfield thunderbird inspect and repair or replace
  • Royal Enfield thunderbird intake air pressure sensor trouble
  • Royal Enfield thunderbird intake air temperature sensor trouble
  • Royal Enfield thunderbird intake air temperature sensor trouble
  • Royal Enfield thunderbird intermittent any DFI fault and its recovery
  • Royal Enfield thunderbird little fuel in tank
  • Royal Enfield thunderbird main throttle sensor trouble
  • Royal Enfield thunderbird no or little fuel in tank
  • Royal Enfield thunderbird poor acceleration
  • Royal Enfield thunderbird spark plug burned or gap maladjusted
  • Royal Enfield thunderbird spark plug dirty, broken or gap maladjusted
  • Royal Enfield thunderbird spark plug incorrect
  • Royal Enfield thunderbird spark weak
  • Royal Enfield thunderbird stick coil shorted or not in good contact
  • Royal Enfield thunderbird stick coil trouble
  • Royal Enfield thunderbird subthrottle sensor trouble
  • Royal Enfield thunderbird subthrottle valve actuator trouble
  • Royal Enfield thunderbird throttle body assy dust seal damage
  • Royal Enfield thunderbird throttle body assy holder loose
  • Royal Enfield thunderbird throttle valves will not fully open
  • Royal Enfield thunderbird unstable (rough) idling
  • Royal Enfield thunderbird unstable fuel pressure
  • Royal Enfield thunderbird vacuum hose
  • Royal Enfield thunderbird vehicle-down sensor trouble
  • Royal Enfield thunderbird water or foreign matter in fuel Change fuel
  • Royal Enfield thunderbird water temperature sensor trouble

Issues with the engine are typically caused by issues with the engine parts. Whether it is a fuel issue or an ignition problem, the engine parts should be inspected to determine the cause. Another issue that can occur is when the Royal Enfield Thunderbird motorcycle engine is not working is a failure of the electrical system. This can cause the motorcycle to stall and not work correctly. The electrical system is typically the most complex system on a motorcycle.

Possible Failure Types :

  • Strange Royal Enfield Thunderbird engine noise.
  • Royal Enfield Thunderbird fog from engine.
  • Strange Royal Enfield Thunderbird engine noise.
  • Royal Enfield Thunderbird Vibrations and Rattling
  • Royal Enfield Thunderbird Loud Acceleration
  • Royal Enfield Thunderbird rusty exhaust
  • Royal Enfield Thunderbird blockages in exhaust pipe
  • Royal Enfield Thunderbird wear and tear exhaust
Royal Enfield Logo

Royal Enfield of India is the second company to bear the name, with a transfer of license from the original Royal Enfield of England in 1968. It is famous for having the longest in-production model in the world, with the Bullet first being produced in 1901.

Check other Royal Enfield fault codes.

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 Royal Enfield 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.

Royal Enfield and logo are registered trademarks of Royal Enfield. We are fan of MOTORCYCLES ! We love them.

Motorcycle electrical systems are very complex to fix it, check with your motorcycle diagnosis tool for the fault code and start motorcycle troubleshooting process.Some bike problems require professional troubleshooting and repair. However, there are many issues that you can easily fix on your own.

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