gti9
New Member
Posts: 5 
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Post by gti9 on May 11, 2016 20:07:03 GMT
Tried the app but not working. I just get "SOC ...%" ? What's up?
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Post by OBDeleven on May 12, 2016 11:14:38 GMT
Tried the app but not working. I just get "SOC ...%" ? What's up? No one knows why it is not working on some cars, I will try to find out what is going wrong when I have MK7 in my workshop. Does your car still have original battery? |
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gti9
New Member
Posts: 5
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Post by gti9 on May 13, 2016 13:37:46 GMT
Tried the app but not working. I just get "SOC ...%" ? What's up? No one knows why it is not working on some cars, I will try to find out what is going wrong when I have MK7 in my workshop. Does your car still have original battery? Original battery, the cars only 2 months old with 4500 miles on it. |
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Post by JP on Jun 27, 2016 6:11:47 GMT
Same here. USA 2016 Golf Sportwagen S
Thanks.
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Post by dv52 (Australia) on Jun 27, 2016 7:21:46 GMT
Tried the app but not working. I just get "SOC ...%" ? What's up? gti9: I got a hunch as to the reason why this tweak might be problematic on some cars (and not others) that I would like you to disprove.
Not sure if you are aware, but (some?) mk7's have a "battery monitor control unit" (J367). The role of this little beastie is to provide continuous information to the car's electronics about what VW calls "System voltage" - which is very different from Battery voltage.
Most of the control modules' decisions regarding the rail voltage in the car is actually based on a calculation of System Voltage which is generated from the historic behaviour of all the electrical current flows that went into and out-of the physical battery since it was first installed and registered in the CAN Gateway. J367 is pivotal to data gathering for this calculation. The existence of J367 is the reason why it is never correct to charge the battery in a mk7 by placing the positive/negative charger leads directly onto the positive/negative battery terminals and it's also the reason why System Voltage calculation must be reinitialised in the CAN Gateway whenever a new battery is replaced in the car (but that's another story!)
Anyhow, my hunch is that this tweak relies on the data that is generated by J367 and it's possible that not all mk7's have a J367 module (especially if the car doesn't have Start Stop which is where lots of System Voltage decisions are made). You can tell if your mk7 has a J367 module by looking at the negative battery terminal clamp - J367 should be just next to the negative battery terminal as shown in the picture below:
Does your car have J367? Don
PS: this tweak facility works for me (it was factory enabled) and my mk7 has J367
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Post by JP on Jun 27, 2016 17:34:48 GMT
No module next to the battery
No start/stop functionality on the 2016 USA Sportwagen S.
Thank you for your informative and concise post.
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Post by cooloregon on Sept 14, 2016 0:17:03 GMT
Assuming that the function is activated in your car, mine was...2015 Golf-S tsi 5-speed.
1. With the ignition off hold down the 0.0 button on the centre of the dash.
2. The MFD screen (the one in the middle of the rev-counter and the speedo) will cycle through "time" entry (allowing you to set the clock).
3. Let go the button when it says "Battery".
4. The MFD will then display SOC for a few seconds (mine generally reads 95-100%)
If you can't access the "Battery" message when you hold-down the 0.0 button, it means that SOC isn't enabled in your car.
To enable SOC, you will need access to a VCDS cable. The VCDS tweak goes like this:
1. Select the Instrument control module (address hex17).
2. Select adaptation -10,
3. Scroll down the channel list until you find "Battery charge" - select.
4. Change setting to "active"
hope this helps!
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Post by Sync84 on Jan 13, 2017 13:45:31 GMT
Hi, I have the same SOC problem ( ---% )
I have start/stop system and J367
How can I fix it? Is there any solutions?
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Post by rmoreira on Jul 18, 2021 7:36:35 GMT
I am in the exact situation as you.
Went to my vw dealer and they didn't even know that vw cars could read vw s.o.c...
Can obd eleven help me?
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jul 18, 2021 8:55:03 GMT
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Post by ahpaul82 on Jul 22, 2021 8:36:04 GMT
Assuming that the function is activated in your car, mine was...2015 Golf-S tsi 5-speed. 1. With the ignition off hold down the 0.0 button on the centre of the dash. 2. The MFD screen (the one in the middle of the rev-counter and the speedo) will cycle through "time" entry (allowing you to set the clock). 3. Let go the button when it says "Battery". 4. The MFD will then display SOC for a few seconds ( mine generally reads 95-100%) If you can't access the "Battery" message when you hold-down the 0.0 button, it means that SOC isn't enabled in your car. To enable SOC, you will need access to a VCDS cable. The VCDS tweak goes like this: 1. Select the Instrument control module (address hex17). 2. Select adaptation -10, 3. Scroll down the channel list until you find "Battery charge" - select. 4. Change setting to "active" hope this helps! So high reading? mine mostly 80% only.. (Y2013/14 VW GOLF GTI MK7) |
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Post by dv52 (Australia) on Jul 22, 2021 21:34:53 GMT
ahpaul82 : I assume that your car has Start-Stop fitted- this is normally the case in cars with SOC enabled . If I'm correct, the car will also have regenerative braking (bluemotion).
If you think about how regenerative braking works, it helps to stop the car whilst adding additional energy into the battery (the alternator voltage is increased during regenerative braking).
For this to happen, the Energy Management System (EMS) in the car must ensure that there is a "headroom" in the battery capacity to accept the additional energy that results from regenerative braking. Hence, in normal circumstances, the EMS cannot allow the SOC to be 100%. A SOC of 80% is normal
I suspect that your question is exactly the reason why VW discontinued the SOC facility in later model Golfs - too many owners complained that their SOC reading wasn't 100 %!!
Don
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Post by ahpaul82 on Jul 23, 2021 3:28:25 GMT
Yes, you are right, my car fitted with Start-Stop function, but I have disabled it using OBDEleven  Thanks for your excellent explanation, if only VW can officially publish such explanation I guess won't have so many owners complained about SOC ready not 100%... hehe |
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Post by rmoreira on Jul 25, 2021 15:40:14 GMT
Hi, I have the same SOC problem ( ---% ) I have start/stop system and J367 How can I fix it? Is there any solutions? Mine is a 2016 golf mk7 1.6 tdi, gps edition(It's a portuguese car, don't know if that makes a difference) and I have the same problem, "soc...%". Went to a dealer and they didn't even know that existed. Does anyone know how to activate this function? I have start-stop, just went to the dealer and pit a new battery thinking that might be the problem, but stil reads soc...% |
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Post by dv52 (Australia) on Jul 25, 2021 22:52:29 GMT
rmoreira : I'm not sure when the change was made on Portuguese cars, but as has been said many times in this thread SOC was only available in early model mk7s.
I assume that your car didn't have the SOC as factory fitted and that you enabled the facility as an OBD11 tweak (either manually, or via an App) - If I'm correct, I would suspect that while the Dashboard module (@ address hex17) can display the SOC screen, the firmware in this, or another module on the car doesn't have the necessary smarts to fully support an actual SOC reading (because the function is not available on your model).
Don
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