Aprilia ETX 350 Fault Codes
Aprilia ETX 350 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 etx 350 faults are the list of some of the parts of a motorcycle engine.
The oil level of Aprilia ETX 350 should be the same level in the dipstick, even when the engine is cold. You can check the oil level by removing the dipstick, holding the dipstick in your hand, and then reinserting the dipstick. Then, you’ll be able to see where the oil level is.
Aprilia ETX 350 Faults :
Engine management systems of Aprilia ETX 350 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.
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 ETX 350 Motorcycle Problems :
- Aprilia etx 350 after fire
- Aprilia etx 350 air cleaner clogged, poorly sealed, or missing
- Aprilia etx 350 air cleaner element clogged
- Aprilia etx 350 air duct loose
- Aprilia etx 350 air suction valve trouble
- Aprilia etx 350 air switching valve trouble
- Aprilia etx 350 backfiring when deceleration
- Aprilia etx 350 cracked or obstructed intake air pressure sensor
- Aprilia etx 350 crankshaft sensor trouble
- Aprilia etx 350 eCU ground and power supply trouble
- Aprilia etx 350 eCU trouble
- Aprilia etx 350 engine overheating - Water temperature sensor or crankshaft sensor trouble
- Aprilia etx 350 engine stalls easily
- Aprilia etx 350 engine vacuum not synchronizing
- Aprilia etx 350 exhaust Smokes Excessively
- Aprilia etx 350 firing incorrect
- Aprilia etx 350 fuel filter clogged
- Aprilia etx 350 fuel injector clogged
- Aprilia etx 350 fuel injector O-ring damage
- Aprilia etx 350 fuel injector trouble
- Aprilia etx 350 fuel line clogged
- Aprilia etx 350 fuel poor quality or incorrect
- Aprilia etx 350 fuel pressure regulator trouble
- Aprilia etx 350 fuel pressure too low or too high
- Aprilia etx 350 fuel pump bearings may wear. Replace the fuel pump
- Aprilia etx 350 fuel pump not operating
- Aprilia etx 350 fuel pump operates intermittently and often DFI fuse blows
- Aprilia etx 350 fuel pump relay trouble
- Aprilia etx 350 fuel pump trouble
- Aprilia etx 350 fuel/air mixture incorrect
- Aprilia etx 350 fuel/air mixture incorrect
- Aprilia etx 350 gear position sensor, starter lockout or side stand switch trouble
- Aprilia etx 350 inspect and repair or replace
- Aprilia etx 350 intake air pressure sensor trouble
- Aprilia etx 350 intake air temperature sensor trouble
- Aprilia etx 350 intake air temperature sensor trouble
- Aprilia etx 350 intermittent any DFI fault and its recovery
- Aprilia etx 350 little fuel in tank
- Aprilia etx 350 main throttle sensor trouble
- Aprilia etx 350 no or little fuel in tank
- Aprilia etx 350 poor acceleration
- Aprilia etx 350 spark plug burned or gap maladjusted
- Aprilia etx 350 spark plug dirty, broken or gap maladjusted
- Aprilia etx 350 spark plug incorrect
- Aprilia etx 350 spark weak
- Aprilia etx 350 stick coil shorted or not in good contact
- Aprilia etx 350 stick coil trouble
- Aprilia etx 350 subthrottle sensor trouble
- Aprilia etx 350 subthrottle valve actuator trouble
- Aprilia etx 350 throttle body assy dust seal damage
- Aprilia etx 350 throttle body assy holder loose
- Aprilia etx 350 throttle valves will not fully open
- Aprilia etx 350 unstable (rough) idling
- Aprilia etx 350 unstable fuel pressure
- Aprilia etx 350 vacuum hose
- Aprilia etx 350 vehicle-down sensor trouble
- Aprilia etx 350 water or foreign matter in fuel Change fuel
- Aprilia etx 350 water temperature sensor trouble
Fault problems that can occur with yourAprilia ETX 350motorcycle engine is a blown head gasket. This can cause your engine to overheat and possibly crack the cylinder heads. In this case, it is best to take your Aprilia ETX 350 motorcycle to a professional mechanic to have it checked out. Another common problem is with the carburetor. The carburetor is the part of your motorcycle that mixes air and fuel to create the combustion needed to power the engine.
Possible Failure Types :
- Strange Aprilia ETX 350 engine noise.
- Aprilia ETX 350 fog from engine.
- Strange Aprilia ETX 350 engine noise.
- Aprilia ETX 350 Vibrations and Rattling
- Aprilia ETX 350 Loud Acceleration
- Aprilia ETX 350 rusty exhaust
- Aprilia ETX 350 blockages in exhaust pipe
- Aprilia ETX 350 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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