Partner Utility (B9) Faults

[Orchid70]

Cannot turn off engine fault codes: U0118 P1434 P1435, adblue is filled in. Could it have Eolys also?

[Orchid70]

There is also Adblue filler neck. So this car has two different additives?

[GiveMeABreak]

I don't have the exact specifics, but U0118 refers to a fault with the additive pump (communications or other) and P1434 & P1435 both refer to additive supply issues.

Has the Eolys additive tank been replaced recently?

Have a look at this video, these people replaced the additive pump, but using their 'Snap On' system had to inform the engine ECU it had been replaced a different way in order to clear these same 3 codes:

[GiveMeABreak]

There is also Adblue filler neck. So this car has two different additives?

There are 2 separate systems.

1) The DPF uses an additive (Powerflex in your case) injected from the Additive Reservoir into the fuel tank each time fuel is added. This is to help reduce the exhaust gas temperature needed to burn of the trapped particles in the DPF during regeneration.

2) Separate to that the SCR (Selective Catalytic Reduction) system treats the NOx emissions by injecting Urea (Adblue) into the catalytic converter. The Adblue is contained in a separate tank.

So the above fault codes have nothing to do with the SCR, only the DPF additive tank.

[Orchid70]

And yes!
I have talked to Peugeot.
This car has both Eolys and Adblue.

[Orchid70]

I have talked to the garage that filled the Eolys (as he said).
The owner told that afte he got the van back, he needed to go back bevause the car wasnt ok. They did something and gave it back to him, for free. So perhaps they didnt know to program the fill up.
I also talked with Peugeot and he told that sometimes the tank needs to be changed, sometimes its the pipe between and sometimes its the serine pump, as he called it.
Ive seen online the pump often fails.
Thanks Marc! I think I need to find a replacement.
Is the pump its own unit and the fluid in a separate bag? I could see the fluid is almost full. 1,26 L.

[Orchid70]

Has the Eolys additive tank been replaced recently?

This was done 76 000 km ago.

[GiveMeABreak]

And yes!
I have talked to Peugeot.
This car has both Eolys and Adblue.

Yes correct - I didn't comment about that as you asked about additives. Adblue is not an additive as it doesn't get added to anything, it's simply injected directly into the Cat.

Watch this to explain the 2 systems:



Please don't get these 2 systems mixed up.

This one is a much older (2012) video before the introduction of SCR and Adblue - but it shows how the DPF Additive system works (which was not shown in the video above):



Vehicles with Adblue Tank / Pump problems are separate to the DPF tank / pump issues that your fault codes are bringing up. Ignore Adblue tanks and pump issues and focus on the DPF additive faults.

[Orchid70]

The only filled it, didnt change it.

[GiveMeABreak]

Oh, ok, I must of misunderstood. As per that last video at the top of the page - they had the same 3 codes you have stated. So your garage may not have been able to notify the engine ECU the additive reservoir was topped up. To be honest, it may be cheaper and easier in the long term to just get Peugeot to do it for you, as they should know exactly what needs doing.

[Orchid70]

I will continue on this thread:
There are more faults. It has a piloted manual gearbox.

When he left the car, there were intermittent codes I did reset, he had been driving it on manual mode:
P0915 - internal fault - Gear Shift Position Circuit
P0915 - mechanical fault
P1701 - computer for the manual gearbox damaged in the piloted manual gearbox's computer

I took the car for a bit longer drive and:
The fault codes only set during Auto position. They are set at 2:nd and 6:th gear. When I drive on manual mode no fault codes are set. It feels like the clutch is slipping. But the codes are (try to translate them to English):
P0915 - internal fault - Gear Shift Position Circuit
P0914 - short to plus or a break

If there is not a more or less simple solution to this I will send the car to the dealer.
I did take a look under. Connector is ok to the Eolys unit. I tried to start the pump manually to test, nothing happens and I get an error message: Pump defective

[GiveMeABreak]

Ok these are completely different faults that relate to the piloted manual gearbox.

This is likely going to be a dealer job. P1701 is a damaged gearbox ECU (Fault in the microprocessor or in a control component: Gearbox ECU damaged). I can't help with the P0915, so don't waste any time taking it to different garages if you want my opinion, as it is going to need specialist diagnostic tools to deal with and give you a realistic idea of problem and cost to fix.

[Orchid70]

That what I am afraid of.
I notised though it was going into Economy mode. Tested the battery with my cheap little tester and it came out "37% healthy" fully charged.
I can also see at servicebox.peugeot.com that this car has Start and Stop system. Didnt know. I dont know if I need to press some button to turn it on, but it wasnt functioning when we went to the village.
All though - the fault code should be lost programming in that case, right?
The P0915 and P0914 are for the gear selector switch.

I will call the owner tomorrow and give him the bad news.
Thanks!!!

[GiveMeABreak]

The Stop & Start system just stops the vehicle at certain times (when the condition allow) to save fuel. It won't operate if any conditions on a long list are true, but primarily if the vehicle battery charge is anywhere below 80%. Sounds like your battery has had it. 37% means its capacity to hold a charge has diminished by almost two thirds. As a battery ages, it loses its capacity to hold a charge. So although it may start OK, the alternator won't be able to put much charge back into the battery, and at some point it will start affecting the electrical systems as once everything starts wanting power there won't be enough to go round.

With this new info, I would get the battery replaced as a first step, to eliminate other issues that may be caused by a lack of power.

[Paul-R]

Make sure that the correct type of battery is fitted. With an S&S system it's likely that an AGM type battery will be needed or an EFB type. Unfortunately these are the most expensive types (especially the AGM) and some vendors will try to steer you into a cheaper old technology battery. While one of these will improve the situation it may not allow the S&S system to operate. Also, don't underspecify the current capacity.

S&S isn't just an economy device. It will have a minimal (albeit beneficial) effect on economy but more importantly in town conditions it will stop exhaust emissions stone dead whilst waiting for traffic lights, etc.