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14-03-2018
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CrawlerStar
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Join Date: Jul 2016
Location: Tweed Heads
Posts: 353 What Jeep do I drive?: WK2
Likes: 141
Liked 235 Times in 132 Posts
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I can add to this as is similar symptons to the Td5 traction control as I found the sensors with light dirt, getting that squeelling of the brakes almost always set of the perm fault for their traction control, and I have noticed a couple of times the same when in the dust on the jeep. Again my diagnostics pointed to the left rear sensor. All the usual checks on resistance and physical are fine. I'm still guessing on the frequency of noise may interfere as dust is not conductive. Whereas dust from electrical brush is conductive.
By the way that picture of the carbon build up is a great shot and yes it may/will affect the sensor timing / values returning to the ecu and just a air clean will solve it. I wrote a repair for the Citroen C3 sensodrive or the Peugeot 2-tronic whereby the vertical mounted motor brushes on the clutch actuator are above the hall effect sensors and when dirty will throw the clutch actuator into fail. Wrote that years ago and a chap still has it all on a UK site of all things.
So many cars had expensive replacement repairs but the dust built up was the fault in almost all the cases. Hope this assists.
Last edited by Mousie; 14-03-2018 at 08:34 PM.
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18-06-2021
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I just registered
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Join Date: Jun 2021
Posts: 5 What Jeep do I drive?: WK2
Likes: 1
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Hi all,
this just started happening on my trail hawk - getting code C2221-00. been reading your experiences and if anyone has any thoughts on fixes please let me know
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19-06-2021
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CrawlerStar
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Join Date: Jul 2016
Location: Tweed Heads
Posts: 353 What Jeep do I drive?: WK2
Likes: 141
Liked 235 Times in 132 Posts
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The first advice is if you can diy remove and clean / check the electronics board. Most replace with huge dollars but clean and restore is the same result. It happens on multiple vehicles. That carbon spread in the picture is certainly conductive enough to easily throw a code. Pulling motor casings apart just enough to clean / fix is actually an easy DIY.
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19-06-2021
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CrawlerStar
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Join Date: Jul 2016
Location: Tweed Heads
Posts: 353 What Jeep do I drive?: WK2
Likes: 141
Liked 235 Times in 132 Posts
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The first advice is if you can diy remove and clean / check the electronics board. Most replace with huge dollars but clean and restore is the same result. It happens on multiple vehicles. That carbon spread in the picture is certainly conductive enough to easily throw a code. Pulling motor casings apart just enough to clean / fix is actually an easy DIY. Whilst I have not done mine yet, this crud can effect the Hall effect sensor signaling if they are located nearby as well.
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11-05-2022
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I just registered
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Join Date: Jun 2021
Posts: 5 What Jeep do I drive?: WK2
Likes: 1
Liked 0 Times in 0 Posts
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thanks have cleaned this all up but it has reoccurred again. looks like a lose of communication between the elsd module and drive line computer. does anyone know where this module is located? want make sure all the connectors are clean. out side have been checked and are all A-OK
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12-05-2022
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MonsterMoose
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Join Date: Apr 2005
Location: QLD
Age: 70
Posts: 8,764 What Jeep do I drive?: WK2
Likes: 4,345
Liked 3,878 Times in 2,294 Posts
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The DTCM is under the passenger seat in the hole...
__________________
2015 WK2 CRD Laredo( ZG, WG 2.7 )
Your Never Too Old To Learn Something Stupid.
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13-05-2022
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I just registered
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Join Date: Jun 2021
Posts: 5 What Jeep do I drive?: WK2
Likes: 1
Liked 0 Times in 0 Posts
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thanks Drover, all checked no issues - now i'm getting these codes
C148F-1D, C1490-00, U0114-00. feels more like a power supply issue than an actual fault with the part. If i restart the car the codes clears?? #confused
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