Hello,

Has anyone got the error code P06A7 on Ford Mondeo, build year 2010, engine 2.0 TDCI. The issue is, when I accelerate slowly I don't get any codes or errors or anything, and after the first and second gear I can do whatever I want, accelerate harshly, drive normal, and nothing bad will happen. But if I put more load (accelerate faster) in the first gear I get the engine malfunction message on my dashboard. The error code as mentioned is P06A7 - Sensor reference voltage low in circuit B. Went to the workshop, changed the DPF, the Differential Pressure Sensor, the throttle body, got the whole wiring in the car inspected, and still the issue wasn't resolved. I'm really desperate, and need help with this, don't know what to do.

Thanks in advance

What's the reg (needed for specifics) I'll look at a wiring diagram and see what sits on Ref B circuit

1 hour ago, MasterTechTip said:

What's the reg (needed for specifics) I'll look at a wiring diagram and see what sits on Ref B circuit

Thank you for your answer. Since I'm not an expert, and not native English speaker, can you please tell me what do you mean by "reg"? Where can I find the diagram of the B circuit? 

Thanks in advance 😄

Sorry it's short for registration. Is the vehicle a UK spec car? 

Also to view the wiring diagrams you'd need access to Ford Etis

1 minute ago, MasterTechTip said:

Sorry it's short for registration. Is the vehicle a UK spec car? 

Also to view the wiring diagrams you'd need access to Ford Etis

Oh, unfortunately I'm not from UK. Has anyone experiemced something similar? Could the problem be from the pcm/ecu? 

I have had similar but the problem is the Ref B circuit has quite a few different sensors and actuators on it making it hard to diagnose. It could also be the PCM like you said. 

I think the last one I had was a faulty EGR

3 minutes ago, MasterTechTip said:

I have had similar but the problem is the Ref B circuit has quite a few different sensors and actuators on it making it hard to diagnose. It could also be the PCM like you said. 

I think the last one I had was a faulty EGR

Do you maybe know which sensors are there? 

Any fix for this? I have same error on my 2016 Mondy.

On 8/3/2021 at 10:37 PM, MasterTechTip said:

I have had similar but the problem is the Ref B circuit has quite a few different sensors and actuators on it making it hard to diagnose. It could also be the PCM like you said. 

I think the last one I had was a faulty EGR

Hi I have the same issue P06A7 on a 2011 fl mondeo reg no, PJ60FUM would you be able to look into it?

I have managed to find the fault which has caused the P06A7, the round shape A/C sensor on the air con pipe has caused the issue I hope it's gonna help for others