Volkswagen P0651 Fault – Delphi DCM6.2V Rebuild
The Delphi DCM6.2V engine ECU, fitted to a number of diesel VW vehicles, carries a known fault that causes P0651 to store. These control modules are known to create a range of faults when they fail, from no start to various warning lights. Thankfully though, we’re the experts at rebuilding the Delphi DCM6.2V to restore full functionality.
Shop Now – Delphi DCM6.2V Rebuild
You’ll find these control modules fitted to popular models like the Transporter T6 and second-generation Crafter. When failure strikes, it’s typical for the P0651 code to store in the VW, but you might also find the vehicle struggles to start.
These symptoms stem from the ECU's low-quality internal components which ultimately cause it to break down earlier than it should. You'll find these control modules fitted to some 1.4 to 2.0L TDI vehicles that were manufactured by VW as recently as 2021, leading to P0651 faults in relatively new cars.
What causes the P0651 Volkswagen code
As you’ll already have discovered, your Volkswagen’s P0651 code generates the message ‘Sensor Reference Voltage B Circuit Open’, of course indicating an issue with the sensor reference supply.
The Delphi DCM6.2V's internal component failure is disrupting various sensor circuits and preventing them from functioning correctly. Although this is actually being caused by the ECU, it still detects abnormal behaviour and triggers a P0651 code to store in your VW.
Of course, this wreaks havoc with sensors that’re vital for various electrical systems on your vehicle, subsequently leading to a wide range of symptoms.
A stored P0651 Volkswagen code isn’t the only sign of a faulty DCM6.2V engine ECU. The internal degradation of these units can be widespread. This causes issues with the ECU’s ability to ground the injector circuit for example – click here to better understand how a faulty engine ECU can disrupt the injector circuit.
Of course, injector faults are going to bring starting issues with them. This is why a defective Delphi DCM6.2V can cause engine no start as well as a stored P0651 VW code.
Our Delphi DCM6.2V Solution
As we’ve already discussed, these units cause a range of potential faults when they malfunction. This makes them particularly hard to diagnose – although P0651 is a common sign of this VW issue. So, it makes sense to take advantage of our bespoke Delphi DCM6.2V testing service.
If you’re experiencing any of the aforementioned symptoms and suspect you’re one of many to have suffered a failure of this unit, send it in to us for testing. Thanks to our state-of-the-art testing rigs, we’ll tell you conclusively if the Delphi DCM6.2V is the source of your problems. We test under realistic driving conditions to uncover even the most intermittent of faults.
If we find your unit to be faulty, we’ll offer to comprehensively rebuild it with higher-than-OEM-standard components. We do this to restore full-functionality to your Delphi DCM6.2V for the long term. Our process takes just 2-3 working days and we’ll cover you with a lifetime warranty – meaning your VW’s P0651 code is the last of your worries.
Resolve your Volkswagen’s issues the smart way – have your engine ECU rebuilt by the experts. Fill out our test form now to get started.
Common failure symptoms:
- No start
- Cutting out
- Limp mode
- Engine light on
- Inactive fuel injectors
- Glow plug light
Common fault codes:
- P0651 – Sensor Reference Voltage ‘B’ Circuit Open
- P0562 – System Voltage Low
Test and rebuild:
We rebuild all automotive control modules with the highest grade components. We do this to upgrade unit durability and provide a long-lasting solution. Our custom-built testing rigs take into account realistic driving conditions to ensure your rebuilt module is ready to return to the road.
Programming:
Don't worry about having to recode your ECU when you receive back from us as all programming information stored in your unit is preserved throughout our process.
Quality:
We strive to offer the best possible quality of service, this is exemplified by our company defect rate of just 0.49%.
Warranty:
Lifetime unlimited mileage*
How do I get my unit rebuilt?
To pay for the rebuild click the Shop Now link above, select your part number and click: Get yours rebuilt.
Print the payment/booking confirmation email.
Package the engine ECU inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).
Send us your package by tracked courier (the shipping instructions are on the confirmation email).
Once received we will test, rebuild and return your unit with an unlimited mileage lifetime warranty. (if your unit turns out not to be faulty then we will refund your payment less a small testing fee and return shipping)
What if I don’t want to pay up front?
This is not a problem, if you prefer this option then follow the following steps:
Fill in and submit this test form.
Print the booking confirmation email.
Package the Delphi DCM6.2V inside a sturdy box with plenty of packaging material (make sure you include your confirmation email in the box).
Send us your package by tracked courier (the shipping instructions are on the confirmation email).
Once received, we will test your control module and call you to advise on the outcome of testing, if your ECU is faulty and you choose to go ahead with the rebuild then we will take payment over the phone using a debit/credit card.
We will then rebuild your ECU and return it to you with an unlimited mileage warranty.
If you require further information regarding this Delphi DCM6.2V then please contact us.