Code
Anyone know about this code? Is it the actual throttle actuator or just TPS sensor? On m156 e63.
Last edited by Hankthetank; Dec 3, 2021 at 09:49 PM.




I would discount that as a fluke unless ECU is going to reliably fail with this DTC
Have you done a "BATTERY FLOAT + RESET" lately..?
I did not say... your throttle bodies are mint, I said troubleshoot first unless you are rushed.
🤞
Last edited by CaliBenzDriver; Dec 3, 2021 at 10:24 PM.
I would discount that as a fluke unless ECU is going to reliably fail with this DTC
Have you done a "BATTERY FLOAT + RESET" lately..?
I did not say... your throttle bodies are mint, I said troubleshoot first unless you are rushed.
🤞
Trending Topics




> Take a look at the TB harness for signs of crusties and oil.
> After that I'd look at Throttle body live data with KeyON engineOFF: press accelerator pedal from 0 to 100 and what the response.
> back probe connector..?
(> look at ECU for legendary oil flood)
Make sure your voltages are not marginal.
Last edited by CaliBenzDriver; Dec 4, 2021 at 07:11 PM.
The Best of Mercedes & AMG
> Take a look at the TB harness for signs of crusties and oil.
> After that I'd look at Throttle body live data with KeyON engineOFF: press accelerator pedal from 0 to 100 and what the response.
> back probe connector..?
(> look at ECU for legendary oil flood)
Make sure your voltages are not marginal.








Few of the DTCodes are a reliable call for parts - You always need to wear your thinking cap to trace the issue unless you can tap prior expertise.
Here the fact one throttle body keeps getting flagged says something is truly up with its circuit, not a generic Benz glitch...
[ECU > wiring > connector > device]
I don't think complexities can be successfully worked out with ignorance. What's causing this issue may well be a $1000+ question.... how fast you get to the cause determines the outcome.
If the throttle body can be tested defective it'll be a successful closure.
Last edited by CaliBenzDriver; Dec 6, 2021 at 09:47 AM.
Few of the DTCodes are a reliable call for parts - You always need to wear your thinking cap to trace the issue unless you can tap prior expertise.
Here the fact one throttle body keeps getting flagged says something is truly up with its circuit, not a generic Benz glitch...
[ECU > wiring > connector > device]
I don't think complexities can be successfully worked out with ignorance. What's causing this issue may well be a $1000+ question.... how fast you get to the cause determines the outcome.
If the throttle body can be tested defective it'll be a successful closure.
Im definitely going to have dealer look at it as that is the easiest solution for me with the time I have. Just confusing how the car doesn't have a check engine light about 60% of the time. Havent really figured out the reason why it sometimes throws codes but it is seemingly random.


