Honda CB 750 four Fault Codes
Honda CB 750 four 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 honda cb 750 four faults are the list of some of the parts of a motorcycle engine.
What’s wrong with my Honda CB 750 four motorcycle brake light and what can I do about it? There are a few possibilities. One is that your break switch is defective and will need to be replaced. Another is that your brake fluid level may be low.
Honda CB 750 four Faults :
The warning light comes on when one of the various sensors has detected an abnormal condition in the Honda CB 750 four engine's performance. For example, if the oil pressure drops below a certain threshold or if the air/fuel ratio rises beyond a certain point, then this would cause an immediate alert from your vehicle's engine management system.
HONDA Motorcycle Fault Codes DTC list
| Code (MIL) | Cause (a, b, c, ...) | Symptoms |
|---|---|---|
| Steady on | There is a jumper in the service connector; not faulty controlnunit (ECM); short circuit in the service connector | Engine is operating normally |
| No light |
a) ECM power failure b) Tilt sensor defective c) Open in the tilt sensor circuit d) Malfunctioning engine stop relay e) Open in the engine stop relay circuit f) Engine breaker not working properly g) Open in engine stop switch circuit h) The ignition switch is not working i) Not good ECM j) Blown fuse PGM-FI (20A) k) Open circuit in engine stop circuit l) Starter / ignition fuse blown (10A) | Engine fails to start |
| No light | An open in the MIL circuit of the indicator | Not OK ECM Engine running fine |
| 1 |
a) MAP sensor contact is off or not b) Open in MAP sensor circuit c) Malfunctioning MAP sensor | Engine is operating normally |
| 2 | Vacuum hose MAP sensor is removed or disconnected Malfunctioning MAP sensor | Engine is operating normally |
| 7 |
a) Whether the contact of the FCT sensor moves away b) Open or short in ECT sensor circuit c) Faulty ECT sensor | Heavy engine start at low temperature |
| 8 |
a) TP contact of the sensor moves away or not b) Open or short in TP sensor circuit c) Faulty TP sensor | Poor engine feedback on throttle opening |
| 9 |
a) Whether the contact of the IAT sensor moves away or not b) Open or short in IAT sensor circuit c) c) AT sensor defective | Engine running normally |
| 11 |
a) The contact of the speedometer sensor b) An open or short in the speedometer sensor circuit c) Speedometer sensor defective | Engine running normally |
| 12 |
a) The contact of the injector No. 1 connector is removed or not b) Open or short in injector No. 1 connector circuit c) Injector No 1 defective | Engine does not start |
| 13 |
a) The contact of the injector No. 2 connector is removed or not b) Open or short in injector No. 2 connector circuit c) c) Injector No. 2 is not working | The engine does not start |
| 14 |
a) The contact of the injector No. 3 connector is removed or not b) Open or short in injector No. 3 connector circuit c) Injector No. 3 is not working | The engine does not start |
| 15 |
a) The contact of the injector No. 4 connector is removed or not b) Open or short in the injector No. 4 connector circuit c) Injector No. 4 is not working | The engine does not start |
| 18 |
a) Whether or not the contact of the pulse generator sensor
connector moves away b) Open or short in the pulse generator sensor connector circuit c) Pulse generator sensor defective | Engine does not start |
| 19 |
a) Whether or not the contact of the pulse ignition sensor departs b) Open or short in the pulse ignition sensor circuit c) c) Pulse ignition sensor defective | Engine does not start |
| 21 | O2 sensor defective (California only) | Engine is operating normally |
| 23 | Faulty O2 heating sensor (California only) | Engine is operating normally |
| 33 | Damaged E2-PROM in ECM Engine running normally | Self-diagnosis not saved |
Honda MIL Failure Codes
The PGM-FI MIL denotes the failure codes (the number of blinks from 0 to 54). When the indicator lights for 1.3 seconds, it is equivalent to ten blinks. For example; a 1.3 second illumination and two blinks (0.5 second x 2) of the indicator equals 12 blinks. Follow code 12 troubleshooting.
When more than one failure occurs, the MIL shows the blinks in the order of lowest number to highest number. For example; if the indicator blinks once, then seven times, two failures have occurred. Follow codes 1 and 7 troubleshooting.
| Number of blinks | Causes | Symptoms | |
|---|---|---|---|
| 0 | No blinks | Faulty ECM | Engine does not start |
| 0 | No blinks | Faulty ECM (PGM-FI warning indicator output) | Engine operates normally |
| 0 | Stay lit | Short circuit in service check connector Faulty ECM (PGM-FI warning indicator output) | Engine operates normally |
| 1 | Blink | Open or short circuit in MAP sensor line (in the ECM) Faulty MAP sensor | Poor idle |
| 7 | Blinks | Loose or poor contact on ECT sensor Open or short circuit in ECT sensor wire Faulty ECT sensor | Hard starting at a low temperature (Simulate using numerical values; 90 C/194 F) Cooling fan does not stop |
| 8 | Blinks | Open or short circuit in TP sensor line (in the ECM) Faulty TP sensor | Poor engine response when operating the throttle quickly (Simulate using numerical values; throttle open 0) |
| 9 | Blinks | Open or short circuit in IAT sensor line (in the ECM) | Engine operates normally (Simulate using numerical values; 25 C/77 F) |
| 12 | Blinks | Loose or poor contact on injector connector Open or short circuit in injector wire Faulty injector | Engine does not start |
| 21 | Blinks | Loose or poor contact on O2 sensor Open or short circuit in O2 sensor wire Faulty O2 sensor | Engine operates normally |
| 54 | Blinks | Loose or poor contact on bank angle sensor connector Open circuit in bank angle sensor wire Faulty bank angle sensor | Engine starts but stops after few seconds. |
Honda CB 750 four Motorcycle Problems :
- Honda cb 750 four after fire
- Honda cb 750 four air cleaner clogged, poorly sealed, or missing
- Honda cb 750 four air cleaner element clogged
- Honda cb 750 four air duct loose
- Honda cb 750 four air suction valve trouble
- Honda cb 750 four air switching valve trouble
- Honda cb 750 four backfiring when deceleration
- Honda cb 750 four cracked or obstructed intake air pressure sensor
- Honda cb 750 four crankshaft sensor trouble
- Honda cb 750 four eCU ground and power supply trouble
- Honda cb 750 four eCU trouble
- Honda cb 750 four engine overheating - Water temperature sensor or crankshaft sensor trouble
- Honda cb 750 four engine stalls easily
- Honda cb 750 four engine vacuum not synchronizing
- Honda cb 750 four exhaust Smokes Excessively
- Honda cb 750 four firing incorrect
- Honda cb 750 four fuel filter clogged
- Honda cb 750 four fuel injector clogged
- Honda cb 750 four fuel injector O-ring damage
- Honda cb 750 four fuel injector trouble
- Honda cb 750 four fuel line clogged
- Honda cb 750 four fuel poor quality or incorrect
- Honda cb 750 four fuel pressure regulator trouble
- Honda cb 750 four fuel pressure too low or too high
- Honda cb 750 four fuel pump bearings may wear. Replace the fuel pump
- Honda cb 750 four fuel pump not operating
- Honda cb 750 four fuel pump operates intermittently and often DFI fuse blows
- Honda cb 750 four fuel pump relay trouble
- Honda cb 750 four fuel pump trouble
- Honda cb 750 four fuel/air mixture incorrect
- Honda cb 750 four fuel/air mixture incorrect
- Honda cb 750 four gear position sensor, starter lockout or side stand switch trouble
- Honda cb 750 four inspect and repair or replace
- Honda cb 750 four intake air pressure sensor trouble
- Honda cb 750 four intake air temperature sensor trouble
- Honda cb 750 four intake air temperature sensor trouble
- Honda cb 750 four intermittent any DFI fault and its recovery
- Honda cb 750 four little fuel in tank
- Honda cb 750 four main throttle sensor trouble
- Honda cb 750 four no or little fuel in tank
- Honda cb 750 four poor acceleration
- Honda cb 750 four spark plug burned or gap maladjusted
- Honda cb 750 four spark plug dirty, broken or gap maladjusted
- Honda cb 750 four spark plug incorrect
- Honda cb 750 four spark weak
- Honda cb 750 four stick coil shorted or not in good contact
- Honda cb 750 four stick coil trouble
- Honda cb 750 four subthrottle sensor trouble
- Honda cb 750 four subthrottle valve actuator trouble
- Honda cb 750 four throttle body assy dust seal damage
- Honda cb 750 four throttle body assy holder loose
- Honda cb 750 four throttle valves will not fully open
- Honda cb 750 four unstable (rough) idling
- Honda cb 750 four unstable fuel pressure
- Honda cb 750 four vacuum hose
- Honda cb 750 four vehicle-down sensor trouble
- Honda cb 750 four water or foreign matter in fuel Change fuel
- Honda cb 750 four water temperature sensor trouble
The electrical system includes the battery, the charging system, the starters, and the charging system. It is also possible that the electrical system can fail due to a problem with the generator. A good place to start Honda CB 750 four troubleshooting the electrical system is to check the engine parts. For example, it is possible that the electrical system can fail due to a problem with the generator. A good place to start troubleshooting the electrical system is to check the engine parts.
Possible Failure Types :
- Strange Honda CB 750 four engine noise.
- Honda CB 750 four fog from engine.
- Strange Honda CB 750 four engine noise.
- Honda CB 750 four Vibrations and Rattling
- Honda CB 750 four Loud Acceleration
- Honda CB 750 four rusty exhaust
- Honda CB 750 four blockages in exhaust pipe
- Honda CB 750 four wear and tear exhaust
Honda Motor Company is by far the world's biggest motorcycle maker. Honda's first motorcycle was born out of necessity in immediate post World War II Japan, where public transportation was desperately overcrowded and gasoline severely restricted.Honda's first bikes were very successful and supplies of the surplus engines ran out after a few months. Business was good by then, so he decided to manufacture his own motors. Using the surplus motor as a model, Honda designed and built his own 50cc engine.
Check other Honda 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 Honda 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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