Codes 23 & 41 BF225

[Mahi-Mike]

Hello,

I have a 04 BF225 that had a water leak started under the cowl on a rough day, and also some waves crashing over the back of the boat. The water leak was from one of the cooling lines. When I throttled the boat to come in the alarm sounded. The next day I tried to run the motor it cranked but would not fire up. I looked into it, and found water all in the vst. I cleaned the vst replaced the fuel filters plugs. The motor started after that and idled smooth. The next time I took it out it idles fine, throttles fine, but I hit 3000rpm I get an alarm. No performance changes when the alarm comes on, and I can throttle past 3k rpm. If I turn the motor off and back on no alarm until the next 3k rpm. I chaeck the codes and it is 23 & 41 . I need some insight on these because I did not have those alarms before the water intrusion.

Did anybody have any similar issues with 23 & 41 ?

Thanks in advance

 

[Fun Times]

About halfway down the following page they offer a fault code chart and 23 and 41 are mentioned...,

Honda Outboard Fault Code List [DTC Chart] |

How do you pull fault codes on a Honda outboard? How do you reset the check engine light on a Honda outboard? Get all the answers!

powersportsguide.com

Honda Outboard Fault Code List

No. of blinks of MIL	Probable problem part
MIL does not come ON or does not blink.	Open circuit in MIL wire Blown MIL bulb Open circuit in ECM ground wire Faulty ECM
MIL stays ON	Short circuit in service check connector wire Short circuit in MIL wire Short circuit in power supply line for ECM Faulty ECM
1	Disconnected oxygen sensor connector Short or open circuit in oxygen sensor wire Faulty oxygen sensor Spark plug misfire
3	Disconnected MAP sensor connector Short or open circuit in MAP sensor wire Faulty MAP sensor
4	Disconnected CKP sensor connector Short or open circuit in CKP sensor wire Faulty CKP sensor
6	Disconnected ECT sensor connector Short or open circuit in ECT sensor wire Faulty ECT sensor
7	Disconnected TP sensor connector Short or open circuit in TP sensor wire Faulty TP sensor
8	Disconnected TDC sensor 1 connector Short or open circuit in TDC sensor 1 wire Faulty TDC sensor 1
10	Disconnected IAT sensor connector Short or open circuit in IAT sensor wire Faulty IAT sensor
13	Disconnected BARO sensor connector Short or open circuit in BARO sensor wire Faulty BARO sensor
14	Disconnected IAC valve connector Short or open circuit in IAC valve wire Faulty IAC valve
21 (BF225A)	Disconnected VTEC solenoid valve connector Short or open circuit in VTEC solenoid valve wire Faulty VTEC solenoid valve
23	Disconnected knock sensor connector Short or open circuit in knock sensor wire Faulty knock sensor
24	Disconnected overheat sensor 1 connector Short or open circuit in overheat sensor 1 wire Faulty overheat sensor 1
25	Disconnected overheat sensor 2 connector Short or open circuit in overheat sensor 2 wire Faulty overheat sensor 2
26	Disconnected oil pressure switch (high pressure side) connector Short or open circuit in oil pressure switch (high pressure side)wire Faulty oil pressure switch (high pressure side)
41	Disconnected oxygen sensor heater circuit connector Short or open circuit in oxygen sensor heater circuit wire Faulty oxygen sensor heater circuit Spark plug misfire
58	Disconnected TDC sensor 2 connector Short or open circuit in TDC sensor 2 wire Faulty TDC sensor 2
7,13	Open circuit in sensor output voltage line (brown/white)
1,6,13,7,10,24,25	Open circuit in sensor ground line (green/red)

 

[Mahi-Mike]

Ok Thanks for the code list.

One other question,

about clearing the codes. I have a MOB kill switch and for me it I cant clear the codes. Is there a trick to clear the codes with a mob kill switch?