Mercruiser Fault Codes??
01-02-2019 | 08:37 PM
#61
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 45
From: Ft. Worth TX
Thanks for the good words. Im always just one road trip away but by appointment only. I always have boats in from all over and at times completely covered up. . Anyways for this exact fault code there should be NO guardian. The fault itself TRIM CKT LO = TRIM SENSOR CIRCUIT LOW = trim circuit open and that can = sensor issue and or wire issue and or connection issue..
How are you seeing this fault -- scan tool or smartcraft display ?? If scan tool what brand of scan tool ?
How are you seeing this fault -- scan tool or smartcraft display ?? If scan tool what brand of scan tool ?
01-02-2019 | 09:31 PM
#62
Registered
Joined: Jan 2005
Posts: 686
Likes: 18
From: Canyon Lake, TX
Im seeing the code via SmartCraft display. Again, just on trailer. Have not run boat with this code showing. Boat is at Canyon Lake, between Austin and San Antonio if you ever make trips that way from your neck of woods.
01-03-2019 | 01:13 AM
#63
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 45
From: Ft. Worth TX
Thanks This is a twin engine boat correct ?? I would scan the engines. Clear the code and see what happens and of course scan again in due time.. If code comes back (prob will ) then look at what I posted above for the possible fix.
I have 2 boats in now from Austin and 2 from the Tulsa area and 1 from New Mexico and 1 guy whom just moved from Florida. . . The rest are within a 100 mile rad plus the regular loco s. . Our weather stinks lately - hard to get anything done as of late. I was up in Indy Mid Dec for 2 boats there..
Min once per month - every month, I travel all over from being hired.. Basically 600 Sci and down.- The 496 seems like everyone hits me up. I see alot of wakeboats as well. LS / LSA / GEN V direct injection and Ford Raptor.. I like that because its not the same old same old plus its new Tech as well. Anyways just thinking out loud,
I have 2 boats in now from Austin and 2 from the Tulsa area and 1 from New Mexico and 1 guy whom just moved from Florida. . . The rest are within a 100 mile rad plus the regular loco s. . Our weather stinks lately - hard to get anything done as of late. I was up in Indy Mid Dec for 2 boats there..
Min once per month - every month, I travel all over from being hired.. Basically 600 Sci and down.- The 496 seems like everyone hits me up. I see alot of wakeboats as well. LS / LSA / GEN V direct injection and Ford Raptor.. I like that because its not the same old same old plus its new Tech as well. Anyways just thinking out loud,
Last edited by BUP; 01-03-2019 at 01:15 AM.
01-03-2019 | 11:56 AM
#64
Registered
Joined: Jan 2005
Posts: 686
Likes: 18
From: Canyon Lake, TX
Yes, twin engine application. Glad to see you are staying busy! Maybe PM me if you are headed down 35 to the Austin area, would have you do your scan. For now, will see what I can do in the garage with nothing more than my hands, lol. No scanner available, etc. Not sure I trust the mechanics in the area with my setup. They just dont have the experience or exposure to the Mercury Racing lineup.
Appreciate your replies/comments.
Appreciate your replies/comments.
01-24-2019 | 10:54 PM
#65
Registered
Joined: Dec 2018
Posts: 11
Likes: 0
So for my Scorpion 350 DTS issue I put in 4 new o2 sensors, I found a great deal on 2 and had two new ones lying around. I noticed both stb side sensors were the original oem, and that is the side where the code was being thrown. After that and new plugs I ran it on the fake lake for 30 plus minutes from idle to 2500, it went into closed loops as expected on engine heat up. NO CODES!! But I know Im not out of woods because don’t emission vehicles have to “cycle” and then do a self check and then that’s when you would infact get a code, ie x amount of start ups and certain rpm range for certain periods of time, like a car?? But it is not instantly throwing codes like it was before....
06-06-2019 | 09:30 AM
#66
Registered
Joined: Jun 2019
Posts: 6
Likes: 0
New here, awesome thread. I have a 496 8.1 375 mercury inboard. Code 9
I have a fault code 9 pop up only when I run around 30 mph. I let off and sometimes it goes away so quick I don’t even get a chance to read the code on screen. I have the smart safe 3. Can someone plz tell me what that code means. Closest dealer is 2 hrs away. Plus can’t get it in until 2 weeks from now
06-06-2019 | 10:47 AM
#67
Registered
Joined: Jan 2005
Posts: 686
Likes: 18
From: Canyon Lake, TX
Yes, twin engine application. Glad to see you are staying busy! Maybe PM me if you are headed down 35 to the Austin area, would have you do your scan. For now, will see what I can do in the garage with nothing more than my hands, lol. No scanner available, etc. Not sure I trust the mechanics in the area with my setup. They just dont have the experience or exposure to the Mercury Racing lineup.
Appreciate your replies/comments.
Appreciate your replies/comments.
06-06-2019 | 12:43 PM
#68
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 45
From: Ft. Worth TX
fault # 9 is
You are in Guardian mode - aka protection mode - aka power reduction mode and you need to quit running your engine because some shape or form the engine is telling that person stop we are in protection MODE - you have issues with other FAULTS and or sensors and or connections and or pressures and or voltage and or whatever.
first place to start is your warning horn is that active / working - do you hear it at start up and do you hear it when fault # 9 shows up ?? if not IT NEEDS TO BE WORKING cause there will be a zillion faults for that one alone. And then one needs to see what other fault(s) that are possible taking place. Good luck and have to mention about a 2 week wait time for this time of the year ---- you are very lucky its only 2 weeks.
You are in Guardian mode - aka protection mode - aka power reduction mode and you need to quit running your engine because some shape or form the engine is telling that person stop we are in protection MODE - you have issues with other FAULTS and or sensors and or connections and or pressures and or voltage and or whatever.
first place to start is your warning horn is that active / working - do you hear it at start up and do you hear it when fault # 9 shows up ?? if not IT NEEDS TO BE WORKING cause there will be a zillion faults for that one alone. And then one needs to see what other fault(s) that are possible taking place. Good luck and have to mention about a 2 week wait time for this time of the year ---- you are very lucky its only 2 weeks.
06-07-2019 | 05:16 AM
#69
Registered
Joined: Jun 2019
Posts: 6
Likes: 0
Maybe you can help me
Yes and no about normal codes. Depending on your 8.1 app. Do you have smartcraft gauges - do have DTS - do have a catalyst 496 . Would need to know serial numbers of your motors to determine what you have as far as the 8.1. I will say this again and again anytime you take your boat in for service or buy parts from a OEM dealer the first thing they need to know is what is the serial # of the engines. Why because a 2001 496 is totally different set up than a 2010 496. Serial number breaks determine as were parts have change and different setups of that same engine. This holds true for all marine engines.
With that said I can not speak 100 % if your codes are normal or not for the first 4 codes not knowing exactly how your 496's are set up exactly from the factory or boatbuilder. Anyways most of the times on a standard 496 especially the earlier models without DTS (digital throttle & shift) these codes are meaning less.
CODE 179 Starboard EMCT - is Starboard exhaust manifold temperature HIGH. Could be sensor or a cooling problem.
I am marine factory OEM trained now for 25 years. Just in case any needs to know where my logic comes from.
.
With that said I can not speak 100 % if your codes are normal or not for the first 4 codes not knowing exactly how your 496's are set up exactly from the factory or boatbuilder. Anyways most of the times on a standard 496 especially the earlier models without DTS (digital throttle & shift) these codes are meaning less.
CODE 179 Starboard EMCT - is Starboard exhaust manifold temperature HIGH. Could be sensor or a cooling problem.
I am marine factory OEM trained now for 25 years. Just in case any needs to know where my logic comes from.
.
06-07-2019 | 05:23 AM
#70
Registered
Joined: Jun 2019
Posts: 6
Likes: 0
Yes it beeps solid
fault # 9 is
You are in Guardian mode - aka protection mode - aka power reduction mode and you need to quit running your engine because some shape or form the engine is telling that person stop we are in protection MODE - you have issues with other FAULTS and or sensors and or connections and or pressures and or voltage and or whatever.
first place to start is your warning horn is that active / working - do you hear it at start up and do you hear it when fault # 9 shows up ?? if not IT NEEDS TO BE WORKING cause there will be a zillion faults for that one alone. And then one needs to see what other fault(s) that are possible taking place. Good luck and have to mention about a 2 week wait time for this time of the year ---- you are very lucky its only 2 weeks.
You are in Guardian mode - aka protection mode - aka power reduction mode and you need to quit running your engine because some shape or form the engine is telling that person stop we are in protection MODE - you have issues with other FAULTS and or sensors and or connections and or pressures and or voltage and or whatever.
first place to start is your warning horn is that active / working - do you hear it at start up and do you hear it when fault # 9 shows up ?? if not IT NEEDS TO BE WORKING cause there will be a zillion faults for that one alone. And then one needs to see what other fault(s) that are possible taking place. Good luck and have to mention about a 2 week wait time for this time of the year ---- you are very lucky its only 2 weeks.
It all started when my niece took it from around half throttle to almost full throttle all at once.
the pre check always checks good when key is first turned on.
It it sounds like I might be looking for a needle in a hay stack if there is several things it could be such as sensors, and loose wires.
