Anyone know what the suzuki FI Flashing light codes mean?

[AZRyder]

Is there a chart around somewhere? I used to be able to find charts for my cars flashing signals.

[Ext1jdh]

Oh dude you're screwed.





























I haven't got a clue.

[gar4mayor]

Originally Posted by Ext1jdh

Oh dude you're screwed.

that is wrong on so many different levels. for shame.


the manual for the M50 doesn't tell you much. just that if it comes on at all, then there is a failure somewhere in the FI system. doesn't say where. if it comes on and stays on, then it says to ride it to a mechanic a.s.a.p. if it continuously blinks, then it says the bike won't run, and to get it to a mechanic a.s.a.p.

but then again you have an C90, and your light might actually mean something since your bike is bigger, fancier, and costs more dough.

[GregR1]

Originally Posted by AZRyder

Is there a chart around somewhere? I used to be able to find charts for my cars flashing signals.

try a service manual. i know, i know - too obvious. what are they, like $35? get one. it'll cost you about the same as two tanks of gas.

[AZRyder]

Originally Posted by GregR1

try a service manual. i know, i know - too obvious. what are they, like $35? get one. it'll cost you about the same as two tanks of gas.

I have the factory manual. I don't think it's in there but I'm not at home at the moment. I'll check it when I get home.

The FI light blinks twice and the bike won't start. died in the middle of traffic yesterday almost got creamed trying to coast uphill to the side of the road from the middle lane.

[D_Klein]

Originally Posted by AZRyder

Is there a chart around somewhere? I used to be able to find charts for my cars flashing signals.

I have a pdf version of the shop manual for my Gixxer. Obviously a different model than your ride, but I'd imagine that Suzuki uses universal codes (like auto manufacturers). I've never had to look up diag codes in it yet, but I'm sure they're listed in there, if anything.

Let me know what code is coming up and I'll check for ya!

[Don M50limited]

The service manual does include the codes - relative malfunction part.
c00 none
c12 crankshaft positions sensor, pickup coil signal, signal generator
c13 intake air pressure sensor #2, for front cylinder
c14 throttle position sensor
c15 engine coolant temp sensor
c17 intake air pressure sensor #1 for rear cylinder
c21 intake air temp sensor
c23 tip over sensor
c24 ignition signal, coil #1 for rear cylinder
c25 ignition signal, coil #2 for front cylinder
c28 secondary throttle valve actuator
c29 secondary throttle valve position sensor
c31 gear position signal switch
c32 injector signal #1 for rear cylinder
c33 injector signal #2 for front cylinder
c41 fuel pump control system, fuel pump, fuel pump relay
c42 ignition switch signal, anti theft
c44 heated oxygen sensor
c49 pair control solenoid valve

[Brad_M50]

According to the M50 service manual, when the FI flashes and the engine shuts off or won't start. It means there could be a possible serious abnormality of the sensor signals and the ECM has determine it is unsafe to run the engine until you get it checked. When this happens the instrument cluster reads "FI" continuously and the FI led will flash. The book says it could be several things from bad gas to intake air leak to fuel injection malfunction. I hope you understand this better than I do.

[omegajim]

Don, you're making a good point for never buying anything made after '86.

[tastytreats]

My uncle had a similar problem with his 2006 GSXR 750, it flashed the "FI" light in the dash but the bike ran fine, he took it to the dealer (as it occured when the bike was a few weeks old) and they said it was the fuel injector light. In my uncles case there was something wrong with the sensor fuse or something like that.

[Blade]

You have to put the bike into the diagnostic mode though to read the code.

[Ext1jdh]

How, pray tell, does one do that?

[diamond_jim]

For the M50/C50s, and probably all suzukis for that matter, use a paper clip to short out the "dealer wires" located behind the painted plastic cover on the right side of the bike, directly below the seat. With the bike off, use the paper clip to short out the white/red strip wire and the black/white stripe wire. Now don't start the bike, just turn the ignition to on as you are watching the readout on the speedo.

If your bike is stock and all is fine is should read only "C00".

If you have dePAIRedand in doing so removed the gold valve altogether AND all is fine, you should get two codes, "C00" then "C49".

Originally Posted by Don M50limited

The service manual does include the codes - relative malfunction part.
c00 none
c12 crankshaft positions sensor, pickup coil signal, signal generator
c13 intake air pressure sensor #2, for front cylinder
c14 throttle position sensor
c15 engine coolant temp sensor
c17 intake air pressure sensor #1 for rear cylinder
c21 intake air temp sensor
c23 tip over sensor
c24 ignition signal, coil #1 for rear cylinder
c25 ignition signal, coil #2 for front cylinder
c28 secondary throttle valve actuator
c29 secondary throttle valve position sensor
c31 gear position signal switch
c32 injector signal #1 for rear cylinder
c33 injector signal #2 for front cylinder
c41 fuel pump control system, fuel pump, fuel pump relay
c42 ignition switch signal, anti theft
c44 heated oxygen sensor
c49 pair control solenoid valve

[crimeprof]

Fuel injection system fails, and the display has one of two modes - FI and the odometer alternately and the red indicator comes on and remains lit. According to the manual try to keep the engine running until you can get it into a dealer.

[phil.dye]

Originally Posted by diamond_jim

For the M50/C50s, and probably all suzukis for that matter, use a paper clip to short out the "dealer wires" located behind the painted plastic cover on the right side of the bike, directly below the seat. With the bike off, use the paper clip to short out the white/red strip wire and the black/white stripe wire. Now don't start the bike, just turn the ignition to on as you are watching the readout on the speedo.

If your bike is stock and all is fine is should read only "C00".

If you have dePAIRedand in doing so removed the gold valve altogether AND all is fine, you should get two codes, "C00" then "C49".

Okay maybe I am a little slow. I removed the right side panel. Located the ECU. There are two groups of wire going into it. The large group on the bottom has a white/red stripe wire and a black/white stripe wire. The top smaller group has I think two black/white stripe wires. I tried jumping the white and black wire in the larger group both plugged in and disconnected. While connected I still just get the miles and FI light. While disconnected I only get the chec light. Am I just really dumb. I miss my chevy were right under the ole dash I had a connector that I could jump....

[diamond_jim]

I think there are two connectors there not plugged into anything. They are just hanging there. It's one of those 2 connectors. Is it one of those two connectors that you are shorting the wires on or are you unplugging a connector to do it? I'd go look but I just had a nice big shot of whiskey and don't feel like going to the garage at the other end of the property (we live out in the country) to check. I won't be so lazy tomorrow though.

[phil.dye]

Thanks for the answer I will go out and see in the morning. I haven't had any whiskey, but have had enough beer to keep me from walking outside.

[phil.dye]

Okay, I went out there this morning and removed my head from my butt. Right there big as day were the wires everyone was talking about. I jumped them and came up with a C21, intake air temp sensor. Now I get to go track that down and figure out what happened. I just want to be able to tell what time it is while riding and this stupid FI light won't let me. I think I need to just buy a watch....

[diamond_jim]

That should be the sensor that is mounted on the back of the airbox. It sticks into the airbox from behind and senses the air coming through and the ECU adjusts the fuel for air changes.

Either the connector is not on good, the tip of the sensor is dirty or something is up with the wiring somewhere from the sensor connector to the ECU.

[phil.dye]

Okay, just so everyone knows, I am not a complete idiot. However, the plug going into the IAT sensor disconnected when I removed the air cleaner the other day. I thought I hooked it back up, but guess what... Nope, I forgot to. So a tip to anyone who has there FI light come on after they remove their air cleaner housing...double check and make sure you didn't forget to hook up the IAT sensor.

Thanks for the help Jim, I really appreciate it.