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Discussion Starter #1
So, I decided to buy a diagnostic fault code reader (only £20 on eBay) just to see what came up for my CONTINUAL fault

The codes I received were:

U0415
U0141
U0121
U0101
U0002

...anything obvious standing out to anyone?

It’s looking like a possible issue with the onboard computer to me?

Any help would be fantastic!

Kind regards

Andy
 

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Khaki Nitro Nut
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29,483 Posts
U0002 = CAN C BUS off performance
U0101 = Lost communication with transmission control module(TCM)
U0121 = Lost communication with anti-lock brake module(ABS)
U0141 = Lost communication with totally integrated power module (TIPM)
U0415 = Implausible data received from ABS

2 of the above are ABS communication errors, 1 is a communication error with the trany, 1 is communication error with the TIPM. Last but not least is the CAN BUS.

Common to all is the CAN network. Main check is shorted or broken communication wires.
Second in all the lists is the module with which communication was lost.
Last on all the lists is the ECM.

The U0002 I believe is the key.
If that DTC is active it leads to a Diag of U0001 = CAN C BUS circuit.

Here is how this goes.
Chase wires and test them. If that is OK then...

Unplug all of a potential offending module plugs, one module at a time.(IE ABS, TCM, ECM.)[Reconnect when test is complete with that module]
TIPM has to remain plugged in at all times.
Cycle the ignition from on to off 3 times. Turn the ignition on.
Check for the DTC.
If the DTC goes Away when one module is unplugged, there is likely an internal short in that Module.
But not 100% sure that is the case, as an intermittent short to B+ or ground in a wire can occur while you are moving/removing/installing plugs.
This test does not test the TIPM for an internal short!
Caution:
DO THIS AT YOUR OWN RISK!

This post/thread and any others related to modifying/repairing your Nitro in any way, are here for informational purposes only.
It is your sole responsibility to verify the information is correct, accurate, and safe to use.
What you choose to do with the information is up to you.
If you are unsure, please consult a professional.
 

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Discussion Starter #3
Scar0 ...thank you for your time and fantastic post!

I have an auto mechanic coming around next week. I’ve shown him your post. Brilliant!

Been driving the Nitro today and it’s been struggling to find gear at times with an alarm and boxes around the PRND as well as both needles fluctuating

For some reason, I get an alarm and the boxes around the PRND only when I start turning RIGHT and decelerate by taking my foot off the gas ...it NEVER does it turning left or accelerating!

...I’ll let you know what the auto electrician finds...
 

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Khaki Nitro Nut
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You're welcome. Hope this will give you a good starting point.
Check the wires from the trany going forward. They are pretty close to the exhaust a some points. May be as simple as a melted wire.
 

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Discussion Starter #5
So.....

...after 5 hours worth of chasing wires, road testing, static testing, removing modules, resets etc ...nothing has worked! :(

Auto electrician has advised me to scrap the Nitro. His main focus was the CAN C Bus fault which he believes is linked to the comms between the Traction Control Module or something deep within the gear box possibly causing a short

He said the next step would be looking at replacing the TIPM but that’s incredibly expensive and specialist equipment may be needed to reprogram it to my vehicle ...but it might not even be the TIPM

I can’t spend another penny more on this heap of s**t! It’s nearly financially broken me and I don’t know what else to do other than scrap it

Thank you for your time Scar0

Kind regards

Andy
 
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