Autocom Data query Ona Nissan Juke (***FIXED***)

[Fingerz]

Afternoon Gang,

Got a Nissan Juke here
Reg- GK66 FAM
Vin- SJNFCAF15U7270745

Gonna jump straight to it.

If there are any Autocom users on here
What data pid do you use to monitor the DPF pressure sensor. Senor at the back of the turbo in a right awkward place to get on. I am fully aware of the hoses perishing in these models. They are ok.

Fault code - P1453

So with Sensor plugged in!

I got.

5v ref = 5volts good ✅ ( Tested with Volt meter and with incondesent test, test light works fine)
Ground = 0 volts✅ ( also tested with test light)
Signal = 4 volts at sensor

Sensor Unplugged

5v ref = Good ✅(Also work with test light)
Ground = Good ✅( Also Works with test light)
Signal = No Bias voltage

If I put test light to battery positive, Sensor unplugged harness side and tap on the signal wire,
connect volt meter signal wire ECU side, with the ECU plugged in, I can see 11volts being sent down to the ECU via my test light. Wire integrity confirmed.! Also if I go to battery negative, volt metre picks it up at the ECU end,still nothing on Live data.

Also I cannot see anything happening in Live data on any of the data pids I have tried, so its looking to me to be a faulty ECU.

In Real time Data

the only data pids that were available when plugged in were

•Particle filter differential pressure
•Particle filter differential correction

I have tried a load more pids to see if I can see any response from the ECU and I can’t.
Is it just me looking at the wrong data pid?? does anyone know of any updates that on these ECU modules for this type of issue.?

Or am I on the correct data pids and it’s most likely the ECU is up the duff.?

If anyone knows the correct abbreviation for the DPF sensor in Autocom it would be much appreciated. I don’t wanna condemn this and get it wrong.

not sure if there is any offset values that need to be reset, have deleted codes it’s coming back and keeps throwing this code up. All Electrical supply’s and grounds and signal wires have checked out good. Done pin drag and there is no sign of green crustys.

Any help much appreciated.

Thanks in advance

Regards
Wayne
Scope3

 

[Nigel Yardley]

Could this be a SENT signal, rather than voltage change?

 

[Steve SDN]

As above, drop a scope onto the signal wire 👍

 

[Fingerz]

So are you saying to drop the scope on the signal wire, at the at the ECU and sensor side, with the sensor unplugged.

If I show a matching signal on both channels change the sensor?

 

[Lewisbryant]

Does your fault description list a number.def?

Or maybe low byte data so a - and 2 numbers after it?

Also are both pipes clear?

Is the code clearing and coming back after ignition on or after a road test ect?

I can confirm there are no updated for the juke regarding this fault code or concern.

And ive tested this sensor before on 2014-2018 F15 and it isnt a SENT signal, nissan UK models have only recently started using SENT on there temp sensors as they can combine 4 temp sensors and use 1 wire back to ecu and its also used for GPF sensor on the new 1.3 engine which has been co designed with Mercedes Renault and Nissan.

 

[Fingerz]

Hi Lewis,
Come to think of it I first plugged in the Topdon to pull codes and yes it did have to extra digits after it. I didn’t write them down though just the main code. Oops.

I then plugged Autocom in and it only shows the P1453. I plugged Autocom in because i wanted to try another scanner as I couldn’t get any data pids in the Topdon to respond to me testing the signal wire with my incondescent test light on the dpf sensor unplugged.

Just out of curiosity do you know wether the signal should have a 5 volt bias on it?

Been trying to get one in of late that works to get some known good values. Had a few in of lately and now not one in sight. Typical.

I will try and get back up there early next week and rescan it to get the full code.

If I remember right it deleted, I took it for road test and it came back after a drive up the A48 to see if I could get all monitors to run and check out ok.

I had to give it back to the customer she the said after two days the actual light came back on. That’s when I popped up to have another look.

Are you saying as well that I should she a response on pid data ( providing I’m on the right pid) just like any other 3 pin sensor? I would of thought they are no different but this was has made me question my judgement.

Thanks for the help.

 

[Fingerz]

Does your fault description list a number.def?

Or maybe low byte data so a - and 2 numbers after it?

Also are both pipes clear?

Is the code clearing and coming back after ignition on or after a road test ect?

I can confirm there are no updated for the juke regarding this fault code or concern.

And ive tested this sensor before on 2014-2018 F15 and it isnt a SENT signal, nissan UK models have only recently started using SENT on there temp sensors as they can combine 4 temp sensors and use 1 wire back to ecu and its also used for GPF sensor on the new 1.3 engine which has been co designed with Mercedes Renault and Nissan.

Sorry Lewis forgot to click on the reply button. 😂

have messaged you underneath. On the thread.

 

[Lewisbryant]

The low byte data helps determine what the ecu is seeing wrong with it as it could be signal high signal low invalid data ect. And you know yourself if its at 0v on signal wire unplugged and its saying signal high then it could well be ecu ...

I havent had this issue, like you've said p1453 is almost always the rubber hose pre dpf to sensor split.

I'm not 100 percent on the bias on that circuit havent tried it but I know nissan don't but bias on everything.

If I get one in next week I'll check it for you mate if you don't get one in before me haha.

 

[Ian durston]

Hi @Fingerz , some systems only show pressure or only voltage, some pressure and voltage. I would have thought if there was a fault in the pcm the light would be on all the time. Do you get a pid change when you snap throttle? What about a pid change on road test?

 

[Fingerz]

Hi @Fingerz , some systems only show pressure or only voltage, some pressure and voltage. I would have thought if there was a fault in the pcm the light would be on all the time. Do you get a pid change when you snap throttle? What about a pid change on road test?

Hi Ian, I couldn’t get any response from any of the data pids I was using in Autocom, When at idle, road test, or when I was trying to manually test the sensor with my test light.

How ever because of the location of the sensor I could not get my mittyvac gauge in to do a manual test on the sensor either.

So that’s when I started doubting wether Autocom’s pid data isn’t supported or was I the problem and picking the wrong data pids in the software.

Below is a picture of the original faults code logged when I first arrived.

I am back down there tomorrow and got to revisit this as she wants the car sorted ASAP. And I still have no verdict to give to her yet.

I will check Resistance on pins 2and 3 of the sensor Alldata is saying it needs to be 330kohms

 

[Fingerz]

The low byte data helps determine what the ecu is seeing wrong with it as it could be signal high signal low invalid data ect. And you know yourself if its at 0v on signal wire unplugged and its saying signal high then it could well be ecu ...

I havent had this issue, like you've said p1453 is almost always the rubber hose pre dpf to sensor split.

I'm not 100 percent on the bias on that circuit havent tried it but I know nissan don't but bias on everything.

If I get one in next week I'll check it for you mate if you don't get one in before me haha.

I’m back down there tomorrow Lewis. I haven’t seen another Juke for love nor money.

Don’t suppose you have had any luck with any coming in your end?

 

[Fingerz]

Does your fault description list a number.def?

Or maybe low byte data so a - and 2 numbers after it?

Also are both pipes clear?

Is the code clearing and coming back after ignition on or after a road test ect?

I can confirm there are no updated for the juke regarding this fault code or concern.

And ive tested this sensor before on 2014-2018 F15 and it isnt a SENT signal, nissan UK models have only recently started using SENT on there temp sensors as they can combine 4 temp sensors and use 1 wire back to ecu and its also used for GPF sensor on the new 1.3 engine which has been co designed with Mercedes Renault and Nissan.

That’s the original that keeps coming back. P1453-92

 

[Fingerz]

My plan of attack tomorrow is assuming this system is something like what I have drawn below.

I’m gonna put 5v up the signal wire (Sensor unplugged) start the the car see if I can get- Signal high circuit fault and
Retry it pulling it to ground to see if I can get- Signal circuit low, Just to see if the computer is ok and can see what’s going on,
on signal line.
That will make me feel a bit better that the computer is not dead and I am in fact on the wrong data pids.

Not sure if this is going to work and is the wrong or right procedure, but I need to try something as she wants it sorted this week once and for all.

If I’m wrong please feel free to correct me with what system you think is on these vehicles.

And In the pictures below those were the readings I had at the vehicle Last time

 

[Lewisbryant]

I have had a couple in here but haven't had the time with everything going on to get any readings and as you said where it is, isnt the easiest to get down there.

But 92 is performance or incorrect operation

If you pull it high it should go to 24
And If you pull it low it should go to 23

Low byte data is a gem sometimes.

 

[Fingerz]

I have had a couple in here but haven't had the time with everything going on to get any readings and as you said where it is, isnt the easiest to get down there.

But 92 is performance or incorrect operation

If you pull it high it should go to 24
And If you pull it low it should go to 23

Low byte data is a gem sometimes.

Thank you mate,
that’s some more good info for the knowledge bank.

And Yeh it’s a pig to get on, even just to undo the the Sensor connector.
They really don’t think of the Tech when confronted with some of these issues. Insane.

Will hopefully give you a good news update tomorrow. Fingers Crossed 🤞🏻

 

[Fingerz]

I have had a couple in here but haven't had the time with everything going on to get any readings and as you said where it is, isnt the easiest to get down there.

But 92 is performance or incorrect operation

If you pull it high it should go to 24
And If you pull it low it should go to 23

Low byte data is a gem sometimes.

Morning mate,

Managed to get codes this morning. (Picture supplied)

Re done the test unplugged I got

5v on references = loaded circuit good
Ground = loaded circuit good
Signal = 5v will go to zero if u pull it down.

Computer identified with these codes. Alldata tells me what I wanted to read. High voltage and low voltage.

Also Alldata was telling me, I need to 330kohms on pins 2 and 3 of the sensor. I struggled getting me leads on but it was showing open circuit once I managed to get on.

Sending it down for a senor.

Reckon I’ve made a decent call or not??. 😂😂

Will report back on the result.

All data states if that doesn’t work replace the ECM if the code come after new sensor fitted. 😂

Honestly you can laugh at some of this info we get.

 

[Ian durston]

HI If you have 5v on signal wire unplugged i would say you circuit is fine. you said on your first post 0v on signal wire unplugged whats changed? may be a poor connection when testing? and you said 4v on signal wire plugged in which i think should be either 0.5 volt or 1 volt. new sensor required

 

[Fingerz]

Hi mate,

I rechecked myself to make sure what I have been saying on here is the same and was correct.
I think I may have been the problem or poor testing first time time round.

So to clarify the data I have loaded on the most recent post is correct.

The Sensor has failed its ohm test.

Powers and grounds are fine.

ECU is detecting that I am creating Hi voltage and low voltage on the signal wire.

Still don’t know why I can’t see any data pid for DPF pressure sensor though. Time for some new scanners.

Just out of curiosity what scanners are using. Is it main dealer Tool for Nissan, Renualt, Vauxhall.

 

[Fingerz]

HI If you have 5v on signal wire unplugged i would say you circuit is fine. you said on your first post 0v on signal wire unplugged whats changed? may be a poor connection when testing? and you said 4v on signal wire plugged in which i think should be either 0.5 volt or 1 volt. new sensor required

Also just to add.

When unplugged the

Faults codes P2452-17 & P2452-17 show them selves .

When plugged back in a faults cleared.

Restarted and rescanned The P1453 is the only that code that resurfaces

 

[Ian durston]

I would be using Bosch kts on your vehicle, I also have topdon and snap on, each tool has its good points and bad.