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Cheebs



Member Since: 04 Jul 2017
Location: Georgia
Posts: 18

United States 2006 Range Rover HSE 4.4 V8 Lucerne Green
Hdc fault and the transmission warnings.

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.

I did replace the battery and add a second battery. I cleaned off the the transmission plug and and reset it truck and it worked well for 3 weeks but it all came back but this time i am having issues talking to the code reader. the only other thing i did was i removed the cd player and replaced it with an Aux plug.

Post #477882 9th May 2018 9:33pm
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kbald



Member Since: 17 Aug 2015
Location: Leeds
Posts: 491

United Kingdom 2007 Range Rover Vogue TDV8 Buckingham Blue

Could somehing be causing the batteries to drain since the cd player change or have you checked that the alternator is kicking out enough power to charge them or it could be on its way out. Lots of codes when there doesnt seem to be a mechanical issue is normally due to low power from the battery / alternator. Current 2007 TDV8 Vogue Buckingham Blue

Post #477893 10th May 2018 5:51am
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Cheebs



Member Since: 04 Jul 2017
Location: Georgia
Posts: 18

United States 2006 Range Rover HSE 4.4 V8 Lucerne Green

So i have another issue after i change my transmission fluid. The first time i changed it i changed out the connector sleeve too but there was a small piece of Oring in there so it would not seat right. i found this by using a mini cam to look into the connector on the tranny side. This fixed my Bus communication issues. now after i changed the fluid the first time every thing was smooth even my 1st to 2nd shifts. The second time i changed the fluid to fix the connector issue the 1st to 2nd was crazy. It would feel like it was downshifting right before it shifted up but be fine for the day. The next day it would start and when you put it in reverse would go right to transmission fault. The codes do not come up under OBD code reading. It only comes up using the my icarsoft and only in the land rover auto gear box section. P0736 is what comes up sometimes p0730 and p0741. From what i read the torque converter solenoid needs to be replaced. I wanted to check to see if this was the case and if the other symptoms pointed to anything else and also ask if i should be replacing all of the other solenoids too? 2006 Range Rover HSE

Post #479147 22nd May 2018 6:11pm
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