Fault code 15560 p046c00
- Thread starter amv
- Start date
From where the "sensor A failure" interpretation comes - it's not on the screenshot. I believe the interpretation is not correct.
According to VW TSB/TPI fault code P046C alone and no emission light on dash means no repair needed.
Please untick the "Use Aggressive Mode" - does the fault disappear?
amv
Member
Hi, thank you for you answer. Sensor A was specified to me by the car scanner obd bluetooth. He copied it exactly now.
Car Scanner ELM OBD2
Version: 1.98.0/400980/GP
DTC report
Connection profile: Volkswagen OBD-II / EOBDDate: 09/04/2023 14:23:42
VIN: WV2ZZZ7HZH...........
===============
01. Unidad de control del motor01. Unidad de control del motor
DTCs: 1
----------------------------
15560 [0x003CC8]
P046C00: EGR Sensor "A" Circuit Range/Performance
Exhaust Gas Recirculation Sensor "A" Circuit, Range/Performance
P046C00: EGR Sensor "A" Circuit Range/Performance
Estatus: Temporal, Confirmada, Prueba fallada desde el momento del último reseteo de fallas, Prueba no finalizada en el ciclo de conducción corriente
In the instrument panel I do not get the engine drawing failure, only in the obd. Do you think I should ignore the error? In the workshop they told me that I still had to change the EGR
Thanks!
Any VW garage should be able to find the document.
Anyways, all factory originated documents can be found in
Volkswagen AG erWin Online
amv
Member
Ok. Thanks a lot.Any VW garage should be able to find the document.
Anyways, all factory originated documents can be found in
However, it's sometimes challenging to find the information as there are a lot of documents.Volkswagen AG erWin Online
erwin.volkswagen.de
I have been doing tests and it is an error that does not come out while driving or idling, only when completely stopped for a while, either removing the ignition key or star stop for about a minute.
Could it be a software glitch? Or certainly a bad egr sensor. If I changed the EGR would it fix it?
I'm going to take it to a workshop that can see if the valve openings and everything is fine or they see a defective point, I wouldn't like to go on a trip and be damaged.
Do you think it's a good idea? Or is it nonsense?
That's exactly my impression, too. In all the six incidents I have captured, indeed it happen when engine is stopped after a drive. When engine is at 0 RPM, it seems to do a couple of EGR valve full range (negative minimum through zero to positive maximum) runs six times and a couple of shorter sweeps. I guess it's meant to clear the valves travel path.
The engine has a built-in test to verify EGR valve movement - described here:
Cylinder 3 glow plug code P13D600
Have this code on my vcds and engine lights on, has anyone changed this glow plug 3 (with sensor) themselves?
In the captured freeze frame at the faults there seems to be a deviation between the actual and commanded value - perhaps there indeed has been a stuck then. However, the fault hasn't happened in three months now (since the burst of six mentioned before).
How many times you have recorded the fault?
I think it's just opposite - a perfectly fine working sensor (for EGR valve position) - please see the test mentioned above.
Yes, I believe so.
To get better understanding of overall condition of the EGR systems you could run also this test:
[T6_measured] 01-Engine - Built-in test for EGR
So it seems - inevitable P0401. Well, visited a VW garage to be tested - the van had accumulated 30 events in ECU's memory since July 2021 (since 20 months now). Eventually managed turn on the emission light at event number 31 - thus had a priviledge to have EGR flow tested. The result -...
amv
Member
Hi again, and thanks for the info.That's exactly my impression, too. In all the six incidents I have captured, indeed it happen when engine is stopped after a drive. When engine is at 0 RPM, it seems to do a couple of EGR valve full range (negative minimum through zero to positive maximum) runs six times and a couple of shorter sweeps. I guess it's meant to clear the valves travel path.
The engine has a built-in test to verify EGR valve movement - described here:
Cylinder 3 glow plug code P13D600
Have this code on my vcds and engine lights on, has anyone changed this glow plug 3 (with sensor) themselves?www.t6forum.com
In the captured freeze frame at the faults there seems to be a deviation between the actual and commanded value - perhaps there indeed has been a stuck then. However, the fault hasn't happened in three months now (since the burst of six mentioned before).
How many times you have recorded the fault?
I think it's just opposite - a perfectly fine working sensor (for EGR valve position) - please see the test mentioned above.
Yes, I believe so.
To get better understanding of overall condition of the EGR systems you could run also this test:
[T6_measured] 01-Engine - Built-in test for EGR
So it seems - inevitable P0401. Well, visited a VW garage to be tested - the van had accumulated 30 events in ECU's memory since July 2021 (since 20 months now). Eventually managed turn on the emission light at event number 31 - thus had a priviledge to have EGR flow tested. The result -...
The error occurs every time I stop the engine. There is no exception, except that it stops and starts in a very short time, if more than a minute or less passes, The error returns.
I bought a liquid from the liqui Moly brand, which is used to clean the EGR ducts and diesel carbon.
It is the last option that I have left, perhaps I will clean it and the problem will be corrected, although I doubt it.
What I don't understand is why VW says that if this error comes, you just have to ignore it. Isn't it important to be sure that the valve closes correctly? Thank you
Ahh, I see. Very different than my case.
Well, certainly their response to ignore was related to my case - to justify EGR replacement.
Certainly had had only few incidents compared with yours.
Well, obviously the fault doesn't cause emission failure as it happens only engine off.
However, clearing the fault causes engine to restart various adaptation processes to build up "Emission readiness" status. It can take up to 400-500 kms before all required conditions are passed successfully. In Car Scanner it's under "Emission tests". Also before a fault manifests itself as warning light, engine's internal tests must fail several times - thus clearing a fault also clears any accumulated internal fault history.
It looks like engine doesn't see the conditions serious enough - otherwise it would turn on flashing coil light (glow plug light flashing).
I guess - it depends on many unknown to me factors...
What I have observed - seems to be typically in range of 300 to 600 km. But also seen much longer times (almost 2000 km), as well as shorter (less than 100km). Possibly the "timer" includes ignition cycles, etc.
Unfortunately Car Scanner doesn't show fault frequency counter which would tell exactly when there has been a "renewal" of the fault. Well, the counter actually is in the shown freeze frame data... somewhere in there.
sorry to jump on this conversation
I have a similar issue with my 67 plate T6 4 motion 204 dsg 115k
I have had the management light coming up for a bit with a error on the voltage regulator ,i have just put a new battery on the van as it was getting sluggish and coded it in.
I have also had this EGR 15560 sensor 1 and 23871 error coming up on the van when driving,I am able co clear the error but still comes back up now and again.
I have put the photos of the scan on ,any ideas folks ?
Thanks
John
Would be helpful if you could do VCDS Auto-Scan (use Auto-detect), save it to file, then attach the file in your post.
Anyways, 02256 - Quiescent Current. Indicates that there are extra electric consumers connected which draw (too much) current when the van is locked - e.g. USB chargers, etc.
Quiescent Current - Battery Regulator
Anyone able to shine any light on this? Address 61: Battery Regul. Labels: 1K0-907-534.clb Control Module Part Number: 7E0 907 534 HW: 7E0 937 090 Component and/or Version: Batt.regelung H80 0736 Software Coding: 330B1A73 Work Shop Code: WSC 02739 790 00000...
[T6_measured] 61-Battery Regulator - Built-in test for Quick Quiescent Current Analysis
A quick DIY test using van's built-in test using VCDS or OBDeleven diagnostics tool. Related fault code: 02256 - Quiescent Current - Upper Limit Exceeded VCDS How-to Unlock the van, open driver door (hood and all the other doors closed). Startup VCDS. (-A-) Turn ignition key to position...
23871 - aka P0401 - EGR System Insufficient flow.
Please run engine's EGR flow test.
[T6_measured] 01-Engine - Built-in test for EGR
So it seems - inevitable P0401. Well, visited a VW garage to be tested - the van had accumulated 30 events in ECU's memory since July 2021 (since 20 months now). Eventually managed turn on the emission light at event number 31 - thus had a priviledge to have EGR flow tested. The result -...
15560 - aka P046C - EGR Sensor 1
Please run engine's EGR Valve Self Test
EGR Valve Self Test Procedure (IDE00242)- P046C?
So, I've been getting the all too common P046C fault code along with P2457 (Insufficient EGR Cooling Performance). Neither alone will flag a check engine light but combined they sometimes seem to. To try to figure out what is going on, I ran an EGR Flow test on VCDS using instruction from @mmi...
