Acc, CMBS and air bag disabled
02-12-2019, 03:10 PM
#41
Fk no!TheyldstroyEvrthing
This matter of them popping up when something else is pressed.. a window button...
I rarely, but it happens, get them when i sound the horn. cmbs pops up and disappears right after.
My guess is either moisture, and/or the connector is loose. Which when the horn sounds, could vibrate that module and connector....
But a window operation.... that brings me back to my original idea over a year ago: power distribution. Something is juicing the power. It is already quite a heavy load on the battery. So when a new feature is activated, it sucks some extra and the power on the sensor/connector becomes weaker, and it lights up.
No one was ever able to answer the question of: is there a 'power distribution module'? or maybe a way to detect the current's level.
I'm thinking placing a meter on the connector, and sounding the horn and see if the power goes down?
Hoping to sort this out next week. But if anyone has ideas... .
I rarely, but it happens, get them when i sound the horn. cmbs pops up and disappears right after.
My guess is either moisture, and/or the connector is loose. Which when the horn sounds, could vibrate that module and connector....
But a window operation.... that brings me back to my original idea over a year ago: power distribution. Something is juicing the power. It is already quite a heavy load on the battery. So when a new feature is activated, it sucks some extra and the power on the sensor/connector becomes weaker, and it lights up.
No one was ever able to answer the question of: is there a 'power distribution module'? or maybe a way to detect the current's level.
I'm thinking placing a meter on the connector, and sounding the horn and see if the power goes down?
Hoping to sort this out next week. But if anyone has ideas... .
02-19-2019, 11:49 AM
#42
Intermediate
My 2011 had an extended sleep over at the dealership and I'm hoping that I will find out more today.
The tech followed all the procedures and ti lead to the diagnosis that the ACC module was bad. Not what I was hoping for but also not the right answer in my mind....
The ACC module was replaced under warranty (thankfully) only 1.5 years ago. The issue came back within 6 months in the colder weather. I have been working with a fantastic dealership so my patience is still intact and hoping the true resolution will be found sooner than later.
Will keep you posted!
PS - in my 03 accord there was an issue with the ELD in the main fuse box that caused the headlights to dim when the alternator would cycle. Beginning to wonder if this is something down the same path...
The tech followed all the procedures and ti lead to the diagnosis that the ACC module was bad. Not what I was hoping for but also not the right answer in my mind....
The ACC module was replaced under warranty (thankfully) only 1.5 years ago. The issue came back within 6 months in the colder weather. I have been working with a fantastic dealership so my patience is still intact and hoping the true resolution will be found sooner than later.
Will keep you posted!
PS - in my 03 accord there was an issue with the ELD in the main fuse box that caused the headlights to dim when the alternator would cycle. Beginning to wonder if this is something down the same path...
02-19-2019, 01:14 PM
#43
Fk no!TheyldstroyEvrthing
Now I've been saying this for over 2 years. a load distribution. thanks for thinking of that, i had no idea where to look. That makes sense when combined with a light popping when a horn is sound or a window lowered as in your case.
It doesn't explain the weather or car wash necessarily, unless moisture on modules affect how this fuse box & ELD work... in which case, replacing it is pointless. but itt's good to tell this to your technician in hopes he ets to an answer.
Here's what i found online:
The ELD (electric load detector) is part of the fuse box. You can't replace it without replacing the whole box. ---- The ELD is essentially a current transformer that monitors the amount of current draw the car is pulling from the battery. This amount varies from time to time depending on what you have turned on (various electrical devices). The ELD will output .1 - 4.8 volts to the ECU. This reference voltage is what tells the ECU to increase or decrease the field strength in the alternator, which in turn bumps up the output of the alternator. (https://acurazine.com/how-tos/a/acur...harging-426923) -- courtesy of acura tsx.. also picture shows tsx.
But the link below says an ELD can be replaced.
https://acurazine.com/how-tos/a/acur...harging-426923
It doesn't explain the weather or car wash necessarily, unless moisture on modules affect how this fuse box & ELD work... in which case, replacing it is pointless. but itt's good to tell this to your technician in hopes he ets to an answer.
Here's what i found online:
The ELD (electric load detector) is part of the fuse box. You can't replace it without replacing the whole box. ---- The ELD is essentially a current transformer that monitors the amount of current draw the car is pulling from the battery. This amount varies from time to time depending on what you have turned on (various electrical devices). The ELD will output .1 - 4.8 volts to the ECU. This reference voltage is what tells the ECU to increase or decrease the field strength in the alternator, which in turn bumps up the output of the alternator. (https://acurazine.com/how-tos/a/acur...harging-426923) -- courtesy of acura tsx.. also picture shows tsx.
But the link below says an ELD can be replaced.
https://acurazine.com/how-tos/a/acur...harging-426923
03-01-2019, 06:52 AM
#44
Intermediate
Hi All,
It's been 10 days since picking up the car back up with all codes cleared, no Christmas Tree of light and no decisive resolution on what the actual problem is.
Fingers crossed, everything has been perfect so far. Best suggestion to everyone that experiences this issue is to visit the dealer and have them clear the codes from all 3 locations in the computer (PCE, body and transmission).
I love this car so it's not going anywhere for a long time and will continue to expand my knowledge about all things RL.
It's been 10 days since picking up the car back up with all codes cleared, no Christmas Tree of light and no decisive resolution on what the actual problem is.
Fingers crossed, everything has been perfect so far. Best suggestion to everyone that experiences this issue is to visit the dealer and have them clear the codes from all 3 locations in the computer (PCE, body and transmission).
I love this car so it's not going anywhere for a long time and will continue to expand my knowledge about all things RL.
03-02-2019, 07:13 PM
#45
Fk no!TheyldstroyEvrthing
That's it? Clearing the codes makes it go away for good?
03-02-2019, 08:46 PM
#46
Intermediate
Clearing the codes properly gets rid of the issue until the next time the original cause pops up.
If you don’t clear them, it stays in a compounding cycle of lights. The number of errors keeps growing in the pcm and makes everything even more sensitive.
CMBS light came on today while driving but there was a bunch of wet snow so it wasn’t a surprise.
Will post lay when it rears it’s ugly head again.
Cheers!
If you don’t clear them, it stays in a compounding cycle of lights. The number of errors keeps growing in the pcm and makes everything even more sensitive.
CMBS light came on today while driving but there was a bunch of wet snow so it wasn’t a surprise.
Will post lay when it rears it’s ugly head again.
Cheers!
Last edited by theShaft; 03-02-2019 at 08:50 PM. Reason: Phone glitch
03-03-2019, 05:30 AM
#47
Fk no!TheyldstroyEvrthing
Ok, so im gonna go forward with my plan and wrap this module up.
12-06-2021, 09:36 PM
#49
In feb 2018 my christmas tree was coming from a corroded wire in the back of the OBD plug located on the right of the steering . The year after it came back again and this time they change the obd plug located near the hand break (on the left of the steering) Some of the wires were also corroded and they changed the plug with the wires ..... Since two years not a single time with a christmas tree ... Good luck and happy Christmas time if it can help you to turn off your lights
12-06-2023, 08:53 AM
#51
8th Gear
Join Date: Nov 2017
Age: 28
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2010 rl
This seems like it must be a pretty common problen for this car.
I am pulling my hair out trying to solve this problem.
I bought the car with a bad engine and replaced it.
Now when i drive i get this problem. I have replaced the battery, the contacts are very clean and tight. I checked my grounds. Im waiting on a new alternator although im skeptical that it will fix my problem. There must be a corroded connector somewhere or something.
I clear codes and these keep coming back.
Sensor logic failure. (I have performed vsa sensor reset many times)
ecm/pcm relation failure
Can relation failure
Lost communication with acc control module.
i have an acc module to try, will be next.
I could deal with everything except the airbags being disabled. So crazy.
I am pulling my hair out trying to solve this problem.
I bought the car with a bad engine and replaced it.
Now when i drive i get this problem. I have replaced the battery, the contacts are very clean and tight. I checked my grounds. Im waiting on a new alternator although im skeptical that it will fix my problem. There must be a corroded connector somewhere or something.
I clear codes and these keep coming back.
Sensor logic failure. (I have performed vsa sensor reset many times)
ecm/pcm relation failure
Can relation failure
Lost communication with acc control module.
i have an acc module to try, will be next.
I could deal with everything except the airbags being disabled. So crazy.
Last edited by Ottomobille; 12-06-2023 at 09:02 AM.
12-07-2023, 07:02 PM
#52
8th Gear
Join Date: Nov 2017
Age: 28
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I did some experimenting today.
I unplugged my acc module and started the car to see how it would react. Predictably I got check acc, cmbs, afs airbags.
I then plugged in a new acc module I got from a wrecking yard. Strangely the only message i got was check CMBS, so i drove it around a bit and not long after I got check ACC and Airbags.
I then plugged in my original ACC module and got no messages at all. But soon after I starteI driving i got the usual error messages.
Does anybody know why replacing the ACC module would trigger the CMBS check light? is there a reset procedure for this unit?
I also have many DTC's on the dash when i jump obd2 pin 4&9:
B1171
B2100
B2106
B2107
B2108
B2127
B2141
B2142
DTC 30
DTC 62
DTC103
DTC 105
DTC 112
DTC 113
that seems like alot right?
can anybody tell me if the abs code clear procedure will clear these or do I need a HDS system?
Could this be related to the fact that the throttle body has been replaced? i think i remember reading that it needs to be reprogrammed?
I unplugged my acc module and started the car to see how it would react. Predictably I got check acc, cmbs, afs airbags.
I then plugged in a new acc module I got from a wrecking yard. Strangely the only message i got was check CMBS, so i drove it around a bit and not long after I got check ACC and Airbags.
I then plugged in my original ACC module and got no messages at all. But soon after I starteI driving i got the usual error messages.
Does anybody know why replacing the ACC module would trigger the CMBS check light? is there a reset procedure for this unit?
I also have many DTC's on the dash when i jump obd2 pin 4&9:
B1171
B2100
B2106
B2107
B2108
B2127
B2141
B2142
DTC 30
DTC 62
DTC103
DTC 105
DTC 112
DTC 113
that seems like alot right?
can anybody tell me if the abs code clear procedure will clear these or do I need a HDS system?
Could this be related to the fact that the throttle body has been replaced? i think i remember reading that it needs to be reprogrammed?
12-10-2023, 10:08 PM
#53
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Join Date: Nov 2017
Age: 28
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I was finally able to get HDS working on my computer and cleared a bunch of permanent codes that were stored in the ecu. I have not been able to ger the lights to come back on at all.
could it really be that simple?
Ill follow up if the lights come back on again.
could it really be that simple?
Ill follow up if the lights come back on again.
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danmm7
2G RL (2005-2012)
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