I also have a question on code 17843 secondary air inject...
Customer
I also have a question on code 17843 secondary air injection pump relay short circuit and p2257 air system control a circuit low! I have replaced the secondary air pump thinking it was that and no the code still came up and then r...
I also have a question on code 17843 secondary air injection pump relay short circuit and p2257 air system control a circuit low! I have replaced the secondary air pump thinking it was that and no the code still came up and then replaced the relay and still came back on and I’m pretty the relay for that is by the motor right but yeah any idea why it might keep coming up it’s a 2005 Audi A6 4.2V8
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CarDoc
223 days ago
Automotive Expert
Hello, my name is \*\*\*\*\* \*\*\*\*\* I will be helping you with your question today. I've been working on Audis for over 30 years now, so I should be able to help you through this. Please understand that some of my suggestions may require special diagnostic tools and equipment that many home mechanics may not have, but are often required. So, my first question is whether you're planning on performing your own repairs, or are you wanting to be armed with information before bringing it into your mechanic?
**Also, the site automatically prompts for a phone call. It's very rare that I'm available by phone, so let's hold off on that for now. If needed after we exchange some information, I will do my best to take the time for the call.**
This one sounds pretty familiar. Did you replace that exact relay that we discussed on Friday. Can you please take a picture of it in place in that relay panel and point to it?
Customer
223 days ago
I actually haven’t but I haven’t been able to find the 373 relay online but I’m pretty sure it might me the one u showed you online but it just doesn’t show the number on itBut so your saying the location is on the engine of the passenger side I haven’t checked but I’m not sure if there’s something for relays there on that side but once the car is back I will check
CarDoc
223 days ago
Automotive Expert
Take a picture of the relay panel on the right side of your engine compartment and post it here. I will edit the picture, circle the relay and post it back
Customer
223 days ago
Are you able to just circle like which side of it it should be on
Customer
223 days ago
You can click picture for full screen
CarDoc
223 days ago
Automotive Expert
Ok, I would have thought that you already had the relay panel exposed. It's in here.
CarDoc
223 days ago
Automotive Expert
It's either in position 3 or 4, has 373 printed on it as I mentioned. If you haven't opened that box up, then that is the reason you haven't seen the 373 relay.
Attaching parts info again showing exact location.
Customer
223 days ago
Ohh okay well when I’m with the car again I will check it out and open that box up
CarDoc
223 days ago
Automotive Expert
Yep, mentioned that on Friday also, that it's in that location.
Customer
223 days ago
I just haven’t been able to find the exact relay online I mean u have found the one I showed you with the exact part number but it doesn’t show the 373 printed on it or maybe it is but just doesn’t show that angle but maybe it should work if it’s same part number right
CarDoc
223 days ago
Automotive Expert
Just use that part number, buy it from a dealer so you know it's genuine. Don't worry about the 373 printed on it. A new relay might not have that. The 10-character part number (4H0 951 253 A) is the important part.
It could even have 643 printed on it. But again, this printed number on the replacement relay doesn't matter.
Customer
223 days ago
if it has the exact same part number you told me is it ok if it has a number like 600 and something
CarDoc
223 days ago
Automotive Expert
Yes. Ignore the printed 3-digit number on the new relay.
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I also have a question on code 17843 secondary air injection pump relay short circuit and p2257 air system control a circuit low! I have replaced the secondary air pump thinking it was that and no the code still came up and then r...
I also have a question on code 17843 secondary air injection pump relay short circuit and p2257 air system control a circuit low! I have replaced the secondary air pump thinking it was that and no the code still came up and then replaced the relay and still came back on and I’m pretty the relay for that is by the motor right but yeah any idea why it might keep coming up it’s a 2005 Audi A6 4.2V8