Aprilia Leonardo 300 Fault Codes
Aprilia Leonardo 300 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 aprilia leonardo 300 faults are the list of some of the parts of a motorcycle engine.
Checking the fault code is one of the most overlooked aspects of maintaining Aprilia Leonardo 300 motorcycle. Many people don’t think about it until something goes wrong. A clogged afuel pump. Now that you know how to stay visible on your bike, and how to stay safe on your Aprilia Leonardo 300 bike, it’s important that you know what you need. When you’re on a bike, the weather is often a factor. Here are a few tips that will help you protect yourself the next time you take your motorcycle out on the road.
Aprilia Leonardo 300 Faults :
Your bike engine consists of a great deal of elements like the casting, cylinder heads and pistons. it's necessary to form certain these area unit all clean and lubricated to avoid engine issues. Conjointly keep in mind that Aprilia Leonardo 300 motorbike engine could be a terribly delicate piece of machinery therefore it is best to handle it with care.
Aprilia engine management system is able to self-diagnose faults and tell you what's wrong with it.
To display the Aprilia Fault Codes diagnostics codes, enable diagnostics mode by pressing the LAP button at key-ON for at least 15 seconds. To exit the diagnostics code display and return to the normal display mode, run a key-OFF/ON cycle. When the faults are eliminated and hence the Fault Code is no longer being sent to the dashboard by the ECU, the dashboard will continue to display them until a key-OFF/ON cycle is run. lithe dashboard is sent a code other than those given in the following diagnostics code table, it will display PXX where the XX ls the last iwo digits of the code in question. lf the CAN line does not respond or is disconnected in diagnostics mode, ERR will flash in place of the code digits
Aprilia Error Code List :
Component | Fault Code DTC | Possible Cause |
---|---|---|
Camshaft position sensor | 11 |
Sensor not connected.
Sensor broken. Wiring faulty. |
Crankshaft position sensor | 12 | |
Intake pressure sensor | 13 | |
Intake pressure sensor | 14 | Excessive pressure difference between two pressure sensors |
Throttle position sensor | 15 |
Sensor not connected.
Sensor broken. Wiring faulty. |
Coolant temperature sensor | 21 | |
Air temperature sensor | 22 | |
Atmospheric pressure sensor (inside ECU) | 23 | Sensor faulty |
Ignition coil 1, Front cylinder | 33 | Ignition coil faulty or wiring not connected |
Ignition coil 2, Front cylinder | 34 | |
Ignition coils 1 and 2, Front cylinder | 33,34 | |
Ignition coil 1, Rear cylinder | 35 | |
Ignition coil 2, Rear cylinder | 36 | |
Ignition coils 1 and 2, Rear cylinder | 35,36 | |
Fall Sensor (tip-over sensor) | 41 |
Sensor not connected.
Sensor broken. Wiring faulty. |
Aprilia ECU Error Codes
This menu allows you to view any current errors (active) or stored (memo) as detected by the ECU. The presence of an error is indicated by x. To identify the error, please refer to the ECU error codes table.
ERROR DESCRIPTION | ECU ERROR CODE |
---|---|
Engine overheat | ECU 01 |
Pick-up sensor failure | ECU 02 |
Wrong signal from throttle position sensors | ECU 03 |
Wrong signal from throttle position sensor 1 | ECU 04 |
Wrong signal from throttle position sensor 2 | ECU 05 |
Throttle position sensor 1 malfunction | ECU 06 |
Throttle position sensor 2 malfunction | ECU 07 |
Throttle position sensors malfunction | ECU 08 |
Incorrect charging voltage | ECU 09 |
Oil pump malfunction | ECU 10 |
Air injector malfunction | ECU 11 |
Fuel injector malfunction | ECU 12 |
Ignition circuit malfunction | ECU 13 |
Fuel pump malfunction | ECU 14 |
Engine rpm limiter tripped | ECU 15 |
Error in ECU power supply | ECU 16 |
Rpm limiter tripped while starting | ECU 17 |
Engine temperature sensor malfunction | ECU 18 |
Error on ECU throttle sensor connection | ECU 22 |
Atmospheric pressure sensor malfunction | ECU 23 |
Aprilia Instrument Panel Error Codes :
ERROR DESCRIPTION | INSTRUMENT PANEL ERROR CODE |
---|---|
Immobilizer failure: Key code read but not acknowledged | DSB 01 |
Immobilizer failure: Key code not read (key not available or transponder broken) | DSB 02 |
Immobilizer failure: Broken antenna (open or short-circuited) | DSB 03 |
Immobilizer failure: Inner controller failure | DSB 04 |
Fuel sensor failure | DSB 05 |
Aprilia Leonardo 300 Motorcycle Problems :
- Aprilia leonardo 300 after fire
- Aprilia leonardo 300 air cleaner clogged, poorly sealed, or missing
- Aprilia leonardo 300 air cleaner element clogged
- Aprilia leonardo 300 air duct loose
- Aprilia leonardo 300 air suction valve trouble
- Aprilia leonardo 300 air switching valve trouble
- Aprilia leonardo 300 backfiring when deceleration
- Aprilia leonardo 300 cracked or obstructed intake air pressure sensor
- Aprilia leonardo 300 crankshaft sensor trouble
- Aprilia leonardo 300 eCU ground and power supply trouble
- Aprilia leonardo 300 eCU trouble
- Aprilia leonardo 300 engine overheating - Water temperature sensor or crankshaft sensor trouble
- Aprilia leonardo 300 engine stalls easily
- Aprilia leonardo 300 engine vacuum not synchronizing
- Aprilia leonardo 300 exhaust Smokes Excessively
- Aprilia leonardo 300 firing incorrect
- Aprilia leonardo 300 fuel filter clogged
- Aprilia leonardo 300 fuel injector clogged
- Aprilia leonardo 300 fuel injector O-ring damage
- Aprilia leonardo 300 fuel injector trouble
- Aprilia leonardo 300 fuel line clogged
- Aprilia leonardo 300 fuel poor quality or incorrect
- Aprilia leonardo 300 fuel pressure regulator trouble
- Aprilia leonardo 300 fuel pressure too low or too high
- Aprilia leonardo 300 fuel pump bearings may wear. Replace the fuel pump
- Aprilia leonardo 300 fuel pump not operating
- Aprilia leonardo 300 fuel pump operates intermittently and often DFI fuse blows
- Aprilia leonardo 300 fuel pump relay trouble
- Aprilia leonardo 300 fuel pump trouble
- Aprilia leonardo 300 fuel/air mixture incorrect
- Aprilia leonardo 300 fuel/air mixture incorrect
- Aprilia leonardo 300 gear position sensor, starter lockout or side stand switch trouble
- Aprilia leonardo 300 inspect and repair or replace
- Aprilia leonardo 300 intake air pressure sensor trouble
- Aprilia leonardo 300 intake air temperature sensor trouble
- Aprilia leonardo 300 intake air temperature sensor trouble
- Aprilia leonardo 300 intermittent any DFI fault and its recovery
- Aprilia leonardo 300 little fuel in tank
- Aprilia leonardo 300 main throttle sensor trouble
- Aprilia leonardo 300 no or little fuel in tank
- Aprilia leonardo 300 poor acceleration
- Aprilia leonardo 300 spark plug burned or gap maladjusted
- Aprilia leonardo 300 spark plug dirty, broken or gap maladjusted
- Aprilia leonardo 300 spark plug incorrect
- Aprilia leonardo 300 spark weak
- Aprilia leonardo 300 stick coil shorted or not in good contact
- Aprilia leonardo 300 stick coil trouble
- Aprilia leonardo 300 subthrottle sensor trouble
- Aprilia leonardo 300 subthrottle valve actuator trouble
- Aprilia leonardo 300 throttle body assy dust seal damage
- Aprilia leonardo 300 throttle body assy holder loose
- Aprilia leonardo 300 throttle valves will not fully open
- Aprilia leonardo 300 unstable (rough) idling
- Aprilia leonardo 300 unstable fuel pressure
- Aprilia leonardo 300 vacuum hose
- Aprilia leonardo 300 vehicle-down sensor trouble
- Aprilia leonardo 300 water or foreign matter in fuel Change fuel
- Aprilia leonardo 300 water temperature sensor trouble
The first sign that your Aprilia Leonardo 300 motorcycle's starter system is working well is the warning light that appears when you switch on the ignition. It will illuminate for a few seconds, and then go out. This is a good sign that your starter system is working properly and you'll be able to start your motorcycle without difficulty.
Possible Failure Types :
- Strange Aprilia Leonardo 300 engine noise.
- Aprilia Leonardo 300 fog from engine.
- Strange Aprilia Leonardo 300 engine noise.
- Aprilia Leonardo 300 Vibrations and Rattling
- Aprilia Leonardo 300 Loud Acceleration
- Aprilia Leonardo 300 rusty exhaust
- Aprilia Leonardo 300 blockages in exhaust pipe
- Aprilia Leonardo 300 wear and tear exhaust

Aprilia was founded directly after WW2 as a manufacturer of bicycles, moving to scooters and motorcycles in 1968. Today, Aprilia enjoys success in the competitive sports and adventure bike segments, as well as competing in a variety of motorcycle racing championships.
Check other Aprilia 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 Aprilia 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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