 | Home > Puma (Tdci) > Engine Warning Light Issues on 2015 Defender 2.2 Td4 - P2263 |
 
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| hunting_defender Member Since: 14 Oct 2024 Location: Bludenz Posts: 21   
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Thank you for the instruciotns, digging into it this afternoon with a friend of mine - he is an electrical engineer, he helps me out!
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6th May 2025 1:00pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780 
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Hope you get a result and don't forget to post your findings.. will be interested in how it goes..👍
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6th May 2025 1:26pm |
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| hunting_defender Member Since: 14 Oct 2024 Location: Bludenz Posts: 21
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Good evening,
Sure took notes 
I did measure out the pin‘s: - Actuator (C2519) to ECU (C0411) - Voltage of the 5 pin‘s - Actuator to ECU: all Pin‘s beeped, the green (GND VNTP) one was a little bit reluctant - Voltage: White (C2519-1) to Blue (C2519-2) 1,783 V Green (C2519-3) to Violet (C2519-4) 0 V Orange (C2519-5) to GND of the car 4,980 V When the engine was running and we hit the accelerator Orange (C2519-5) to GND of the car went up to 4,995 V and White (C2519-1) to Blue (C2519-2) to 1,886 V. Not quite sure why the green one was a bit reluctant, maybe because I couldn’t properly reach the pin. Does the voltage look normal? Anywhere to check? Best Regards |
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6th May 2025 8:15pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780
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If I was checking the voltages I would be going from the pins on the actuator to ground...not between the pins as you seem to be doing.. ie white to blue etc.. I'd be checking white to ground..
Here is what I'd expect..with engine running at tick over..and back probing them connector terminals.. Pin 5 white/orange...5v Pin4 purple/brown...2 to3 v, it will vary if you get someone to press the accelerator..and the actuator arm moves.. Pin3 green... 0v.. or close to that..it's the ground..so minimal voltage drop .. Pin2.. and pin 1 the blue and white motor drive wires.. the voltage on these will vary and may show up as a negative value , but the important bit is you see the actuator arm moving up and down as you get someone to operate the accelerator.. Was your continuity check done with the connectors disconnected from the two components.. I'd say not really necessary if your voltage readings and operation are correct. And if the components, ie actuator and ecu are not disconnected you could be checking anything, not just the wire connecting the two.. That's my thoughts.. Have you tried your new actuator yet? |
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7th May 2025 7:54am |
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| hunting_defender Member Since: 14 Oct 2024 Location: Bludenz Posts: 21
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I also measured each pin to ground - similar values. The change in voltage was done that way.
I will do it again later today. How do you measure and check if the arm is moving at the same time? New actuator should arrive today, latest tomorrow! then I can check proper function! |
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7th May 2025 8:28am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780
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It's a visual check.. the actuator rod that connects to the turbo vanes actuation ring should move.. it is a rotary drive out of the back of the actuator and connected to the rod that moves the vanes.. you should see it moving..
That's what I was saying from the start.. in the video you posted it didn't appear to be moving.. if it doesn't move there is no turbo boost control.. If electrically all seems well but there is no actuator movement as you operated the accelerator then its likely damaged the drive in the actuator.. When you replace it have a look inside...you will likely be able to see the issue.. |
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7th May 2025 8:48am |
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| hunting_defender Member Since: 14 Oct 2024 Location: Bludenz Posts: 21
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That is fully understood
https://share.icloud.com/photos/007KN2825P9z1p8OLAmwvEWnA I took a video of the valve itself - seems fine to me! Let‘s hope the new actuator will do the trick! |
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7th May 2025 12:18pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780
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Any joy with your actuator.. it's good to get the results of any issues 👍🤔 |
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13th May 2025 10:14am |
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| Vitesse Member Since: 21 Mar 2014 Location: Sussex Posts: 399 
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Just for interest , I took the original actuator apart. No obvious fault but there was some small particles Inside. A couple of pics
 Click image to enlarge Click image to enlarge 2015 90 XS Santorini Black |
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28th Jun 2025 2:24pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780
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Nice to get some feedback..
I can't make out clearly whether there is damage to the position feedback sensor dial teeth.. the motor worm drive looks OK.. If the actuator was stuck and the motor was still trying to drive it that's where I'd expect to see something give .. Click image to enlarge |
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28th Jun 2025 2:37pm |
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| Vitesse Member Since: 21 Mar 2014 Location: Sussex Posts: 399
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Thanks. I am going to conduct some more detailed examination when I get some time
👍😀 2015 90 XS Santorini Black |
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28th Jun 2025 4:52pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 780
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Ive never had one apart.. the motor drive does appear from your picture to have what is possibly a clutch or spring loaded relief on the drive , but I suppose it depends on how long it was trying to drive stuck vanes for..
👍 |
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28th Jun 2025 8:42pm |
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