New battery and alternator, van won't start

[Deak22]

After I limped it home I tried to see if it would restart and it was cranking and not firing then... So Im no further along really. The new alternator I put on was just my old one that was reconditioned by a local firm. I'm alright with spanners but a spanner with tech. I'll get someone out

 

[Dundee_Kev]

Have you checked the basics like all fuses, earth's etc.

 

[Deak22]

Yeah gone through the fuses including the ones under the battery, all look good (to me lol)

 

[Deak22]

It's got a leisure battery fitted, seen something about a hard reset and disconnecting it.... Might give that a go...

 

[mmi]

Just to add 2019 t6.1

Which one - 2019 or T6.1, can't have both.
Which engine exactly - engine code please - something like CXGA, CXGB, CXHA,....

P056200 system voltage engine fault

Is this a current fault or just a thing of the past. Does it clear? Does it come back?

Can't comment in obd11 for reading the engine computer data?

@mmi any joy with obd11?

Yes, it can be of some help. All ECU data is available - when you know whar to look for. However VCDS would save A LOT of time, and probably money, too.

If the fault P0562 has been cleared/resolved:

OBDeleven > Contorl Units > Engine > Live data​

1) Check camshaft timing offset > Camshaft adaptation intake bank 1, phase position​

2) Verify fuel pressure build up when cranking > Fuel pressure​

3) Verify the ECU fires the injectors when cranking > Main injection, duration of activation​

Post in thread 'Start problem vw t6 CXHA'

1 Sep 2025

Here is the file, hope i did it right... thank you

Perfect

The issue is fuel pressure - it takes two seconds before it even starts to climb. But still remains too low. I would say the prime suspect is high pressure fuel pump (HPFP) - possibly broken spring?



For reference normal behaviour below - fuel pressure climbs immediately with engine starting to crank

• mmi

• 
• 

 

[Dellmassive]

Awesome...

@Deak22 as above.....

 

[Deak22]

?

Sorry my bad 69 plate t6.1

 

[Deak22]

come

Comes back

 

[mmi]

Comes back

Immediately after clearing (without cranking)?
Anyways, the fault need to be resolved as it seems the ECU isn't fully powered.

Sorry my bad 69 plate t6.1

Sorry but the plate designation is just a UK registration thing. Being a T6.1 it must be model year 2020 then...
Still need to know the exact engine code - as they all are not wired the same. Something like CXGA, CXGB, CXHA,....

 

[Deak22]

Immediately after clearing (without cranking)?
Anyways, the fault need to be resolved as it seems the ECU isn't fully powered.


Sorry but the plate designation is just a UK registration thing. Being a T6.1 it must be model year 2020 then...
Still need to know the exact engine code - as they all are not wired the same. Something like CXGA, CXGB, CXHA,....

It was first registered on 30th December 2019, so guess it's one of the 1st t6.1. Engine code is CXHC

 

[Deak22]

And yeah sorry the code won't clear at all...

 

[Dellmassive]

T6.1: (2019 - 2023) EA288 series engine used in pre-2020 (Delphi)
2.0 TDI CR - CXGD 90ps
2.0 TDI CR - CXGE 110ps
2.0 TDI CR - CXHC 110ps <--- this one
2.0 TDI CR - CXFA 150ps
2.0 TDI CR - CXHA 150ps
2.0 BiTDI CR - CXEC 199ps
EA288 series engine used in post-2020n (Bosch)
2.0 TDI CR - DNAC - 66kw/90ps
2.0 TDI CR - DNAB - 81kw/110ps
2.0 TDI CR - DNAA - 110kw150ps
2.0 BiTDI CR -DMZA - 150kw/204ps

Thread 'VW Transporter Engine codes (T5-T6.1)'

10 Oct 2024

VW Transporter Engine codes (T5-T6.1)


do we have a definitive list of engine codes?

if not then lets get one sorted out.

ill start the list, . . .

and in info below and ill update the main list.

• Dellmassive
• caac engine cxhb engine dmza engine dnaa engine dnab engine dnac engine
• Replies: 11
• Forum: Engine, Gearbox, Exhaust, Drivetrain

 

[Deak22]

T6.1: (2019 - 2023) EA288 series engine used in pre-2020 (Delphi)
2.0 TDI CR - CXGD 90ps
2.0 TDI CR - CXGE 110ps
2.0 TDI CR - CXHC 110ps <--- this one
2.0 TDI CR - CXFA 150ps
2.0 TDI CR - CXHA 150ps
2.0 BiTDI CR - CXEC 199ps
EA288 series engine used in post-2020n (Bosch)
2.0 TDI CR - DNAC - 66kw/90ps
2.0 TDI CR - DNAB - 81kw/110ps
2.0 TDI CR - DNAA - 110kw150ps
2.0 BiTDI CR -DMZA - 150kw/204ps

Thread 'VW Transporter Engine codes (T5-T6.1)'

10 Oct 2024

VW Transporter Engine codes (T5-T6.1)


do we have a definitive list of engine codes?

if not then lets get one sorted out.

ill start the list, . . .

and in info below and ill update the main list.

• Dellmassive
• caac engine cxhb engine dmza engine dnaa engine dnab engine dnac engine
• Replies: 11
• Forum: Engine, Gearbox, Exhaust, Drivetrain

Yes mate

 

[mmi]

Just double-checking - the model year is exposed by 10th digit of the VIN. So yours should be as below
WV1ZZZ7HZL*******
or WV2.... for a passenger carrier

 

[Deak22]

Yes mate it's wv1

 

[mmi]

Please check voltage at fuses (both ends) - both ignition OFF and ignition ON.
What size (Amps) fuses you have got in these?

SB 9​

SB 32​

​

SC 47​

Fuse box SB is in the engine bay by the coolant bottle
Fuse box SC is in the cabin

 

[Deak22]

Please check voltage at fuses (both ends) - both ignition OFF and ignition ON.
What size (Amps) fuses you have got in these?

SB 9​

SB 32​

​

SC 47​

Fuse box SB is in the engine bay by the coolant bottle
Fuse box SC is in the cabin

Hi mate, sorry for the late reply...
SB 9 5amp ignition off 11.7v
Ignition on 11.6v
SB32 30amp ignition off 11.7
Ignition on 0.0
SC47 ignition off 11.7
Ignition on 11.6