Fault Codes 25796 / 16056

[RSkutnik]

I get this 2 fault codes. I know that 1st one is Start Stop as it is not working. The second one is a bit of unknown.

T6 Multivan 2016 2.0 110kw

Car Scanner ELM OBD2
DTC report
Selected brand: Volkswagen
VIN: WV2ZZZ7HZGH029471

============1==============
25796
Raw code: 0064C4
ECU: 01. Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Test failed since last DTC clear

============2==============
16056
Raw code: 003EB8
ECU: 01. Engine control unit
Status: Test failed, Test failed (current drive cycle), Pending, Test failed since last DTC clear, Warning indicator requested

 

[Niknak]

Can you get access to vcds to do a scan at all

 

[Loz]

found this with a search of our forum.

16056 - Oil Pressure Switch
P164B 00 [108] - Malfunction
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 140684 km
Date: 2046.01.26
Time: 08:13:45

 

[RSkutnik]

Can you get access to vcds to do a scan at all

I can do read fault codes and erase. But its always this fault coming on.

 

[RSkutnik]

Just researching oil pressure test max 1.5 psi at 2700rpm this is not good. Can it be the oil pump failure or ????? The oil switch and filter was changed also oil.

please for solutions?

 

[Niknak]

Just researching oil pressure test max 1.5 psi at 2700rpm this is not good. Can it be the oil pump failure or ????? The oil switch and filter was changed also oil.

please for solutions?

I’m confused what have you had changed ?

 

[Niknak]

Have you physically tested the oil pressure

 

[mmi]

============1==============
25796
Raw code: 0064C4
ECU: 01. Engine control unit

A possible culprit - have a look here:

VW T6 stop start error message in dash

Hi looking for help on this van new to VCDS Getting message on dash stop start error once its started and ready to move. it also stays in vehicle status when you scroll through menu. I replaced the auxiliary belt as it was squeaking when weather damp in mornings. Battery also replaced as it was...

forums.ross-tech.com

 

[RSkutnik]

Have you physically tested the oil pressure

Yes I have physically tested oil preasure. The only thing I have done was washed all the conectors with contact spray.

So the air intake disapper but the oil preasure stayed there so I have changed Switch, Filter, Oil and no changes. So oil pump or oil pump intake filter to be blocked???

All suggestions appriciated.

Regards
Robi

 

[Niknak]

Right so you’ve checked the oil pressure and you don’t have any ? Or was that your results you listed earlier,

 

[RSkutnik]

Because the test said Oil pressure switch was a malfunction error, so the cheapest way to remove the error is by steps. So I have changed Oil switch, still error, then I have changed Oil and filter and no difference. Because of that I have decided to do the physicall oil pressure test, wich wal very low. If Im not wrong shoud be Ideling at 0,75 to 1 and then by 1000rpm 0.85 to 1 going up, so at 2700rpm I have expected 2.5 to 2.6 psi.

So I think Oil pump service is next???

 

[mmi]

So I have changed Oil switch, still error,

You need to check the wiring.