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2006-2009 Range Rover MkIII / L322
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21 Posts
Discussion Starter #1
I just replaced the transmission fluid ,pan and the connector. After about three days i see the hdc fault message then the suspension lowering and trans fault limiting it to 1 gear. i pulled the codes u0126 ,u0167 and i cleared it then i got u0167,u0126,u0121,p0504,u0155. I replaced the Battery and the stoplight switch. it also seems that the codes don't show up unless the truck is warm. The last set of codes i got was u0167,u0126,u0121,p0504,u0155,u0073,u0151,u0101. Does anyone know what i am looking at here? I am totally lost. The truck has 144000 miles on it.
 

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2006-2009 Range Rover MkIII / L322
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1,207 Posts
You've lost comms with just about all of your individual control modules ABS, IPC, TMS, Active Restaints, steering angle and your high speed comm bus E negative wire has gone high. It's obviously some kind of a wiring issue. Did you knick a wire replacing the transmission sleeve, or maybe push one of the connector pins out?
 

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2006-2009 Range Rover MkIII / L322
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21 Posts
Discussion Starter #3
it's possible but the connector came out real easy. i didn't need any tools to take it off. everything came out and went back together with out any issue. i was thinking about taking the connector back out and spraying it down both ends with electronic contact cleaner.
 

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2006-2009 Range Rover MkIII / L322
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21 Posts
Discussion Starter #4
I can't afford the gaps reader. but is there a cheaper code reader that would give me more info or insight?
 

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93 Posts
I would pull the connector, clean, inspect, treat with electrical spray and go from there.

a little bit of dirt in the connector can cause problems.
 

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2006-2009 Range Rover MkIII / L322
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21 Posts
Discussion Starter #7
i replaced the battery and added a second battery and reset everything. i cleaned off the the transmission plug and reseated it. Everything worked for about three weeks and the codes restarted again. I picked up a icarsoft lr V.20 and it has issues connecting to the car. my other reader has the same issue.
 
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