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HONDA Motorcycle Fault Codes DTC


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 control unit (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) 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) 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) 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