How to fix a P2047 fault code
P2047 can be a broken wire, a corroded plug or an AdBlue injector that has failed, and the bill is very different for each. A £100 + VAT diagnostic where the vehicle is parked shows which one you're facing.
Fix options for P2047 compared
| Fix | When it's the answer | Where it's done | Price |
|---|---|---|---|
| Mobile diagnostics | First, to test the injector's circuit and resistance | Your home or workplace | £100 + VAT |
| Wiring or connector repair | The circuit is broken or corroded between the ECU and injector | Dealer or SCR specialist garage | Garage quote |
| New AdBlue injector | The injector's winding has failed open | Dealer or SCR specialist garage | Garage quote |
| AdBlue delete (software) | You'd rather switch the system off than repair it | At your premises | £330 + VAT |
What P2047 means
The official wording is Reductant injector circuit/open (bank 1, unit 1). The AdBlue injector sprays fluid into the exhaust ahead of the SCR catalyst, and the ECU has found a break in its electrical circuit, so it can't dose.
What causes P2047
- A wire broken by heat or chafing near the exhaust
- Corrosion in the injector's connector
- An injector with an internal open circuit
- A supply fuse or relay fault
Symptoms you may notice
The AdBlue and engine lights come on, and a countdown to no-restart often follows on Euro 6 vehicles. The vehicle usually feels exactly the same to use, so the countdown is what prompts most owners to act.
Using the vehicle with P2047
You can usually carry on for now, but with no AdBlue being dosed, the countdown keeps falling. Book a check while there's still plenty left on the counter.
What happens on a P2047 visit
Price first
Diagnostics costs £100 + VAT at your home or workplace.
Circuit test
We check the injector's resistance, the wiring back to the ECU and the supply.
Your answer
You'll know whether it's wiring or the injector. We don't repair AdBlue systems, so repairs go to a dealer or SCR specialist with our findings.
The delete option
The £330 + VAT AdBlue delete can be carried out on site.
Related code P208E
P208E is listed as reductant injection valve stuck closed (bank 1, unit 1). Here the injector's circuit is intact, but it isn't opening to dose, often because AdBlue crystals have set inside it. If your Citroen or any other vehicle is showing P208E, we diagnose it on the same visit and in the same way as P2047.
How much does it cost to fix P2047?
A wiring repair is normally less than a new injector. The dealer or specialist quotes once our diagnostic has shown which you need.
Is it worth fixing P2047 on an older or high-mileage vehicle?
On a vehicle that stays on the road, yes, because the countdown will eventually stop it restarting.
Will replacing the AdBlue injector always clear P2047?
No. If the wire to it is broken, a new injector sits on the same open circuit and the code stays.
Can you sort P2047 at my home or workplace?
We diagnose it there, and can carry out the AdBlue delete on site. Injector and wiring repairs are dealer or specialist work. A dosing pressure code such as P20E8 may show up alongside.
Do I need a diagnostic before you can quote for P2047?
Yes. The quote depends on whether the injector or the wiring has failed, and only testing tells you.
Can a vehicle with P2047 have the AdBlue delete and stay on the road?
No. The delete is for off-road and export use only, and our guide on whether an AdBlue delete is legal explains the reasons.
Book the right fix for P2047
Send the registration and the countdown figure, and we'll confirm the price and a slot before booking.
More fault codes explained
Eccles, Manchester M30 0SF