I am trying to sort out another issue with the car and buried in the misc codes were these three. My star computer and Wis setup is at a friends shop and between work, girlfriend, and sleep, didn't have time to go back over there today.

Codes are (from an autel maxisys this time), U014600, U016800, U021200. Stored, not current. They are the only ones of three I can not actually see an explanation on. All three say "please refer to vehicle service manual!

Thank you.

CAN BUS fault code.... those start with U letter. looks like there is smth going on with your communication modules/control units.
gonna do some more research tomorrow morning.

U021200 - Lost Communication With Steering Column Control Module

Thank you. This falls into my other thread from the electrical faults when cornering. Not having the time to dedicate during normal hours is killing me and driving me mad. These appear to be redundant to other lost communication faults with nearly every system in the car from the engine, to steering column, to central gateway, esp, brakes, battery, etc. I'd not seen an error described as needing reference the owners manual before with an exclamation point.

Thank you for looking.

Perhaps with these three, I can isolate where a problem is I. The can bus and perhaps resolve this bs.

Once again, thank you. Now I can attempt my four hours of sleep haha

yea i been checking out that thread a lot lol
could it possibly be a steering column unit(since its kinda has to do with turning the wheel) , or one of the computer units related (water got in there ....etc) ??
edit: makes me wanna think something that has to do with ECU?

and you welcome
got a 550 too , so kind of interesting for me

U014600 - Communication with the central gateway has a malfunction. (U014600 - Lost Communication With Gateway "A") ---

U016800 - Communication with the electronic ignition lock has a malfunction.

That's along the lines of what I expected and redundant to other more or less duplicate codes.

Thank you again!

Hello,

I have a 2000 c230K W202 with a constant SRS light. Scanned it via the 38-PIN port and only get "22, current, Please refer to vehicle service manual". From the Google research I have done "22" seems to indicate a left side air bag sensor. I found a used on on ebay and tried it out. That did not solve the problem and actaully created two more (a "23" and a "1B"). I removed the used part and put the original back. That got me back to just "22" DTC. I then swapped the drivers side with the passengers side. Still have the "22" code. I am thinking maybe the sensor is not the problem. The is the first vechile I have had that does not scan for the more current "P0xxx" OBDII codes so I am stumped by exactly what "22" really means beyond the questionable document I found on line.

FYI - when I attempt to clear the code (Foxwell NT530) the SRS light does go out for about two seconds then comes back on right way. Any ideas?

Thank you

you are dealing with a qualified SRS fault that keeps coming back with a "22"code...

can you get a diagram to see what sensors are involved in your circuit
Then from there do a visual inspection.

Any prior collision repair??
🤞

Not sure about the collision repair. Just purchased the car this summer and the light was on when I got it. I do know the battery had been replaced just before I purchased it. My thinking was that the old battery's low voltage tripped the code and that I would be able to easily clear it.

I am not sure where to go for the wiring diagram. Do you know if Haynes and the other after-market repair guides include that sort of information?