Hello,I was wondering if anyone had had this problem,my Range Rover Sport drives about a half of a mile and then goes into limp mode where the hdc malfunction message illuminates and the transmission limited gears message illuminates,once I hard reset the battery,it will shift right and drive a half of a mile and problem occurs again,I have checked the Intergrated transmission control module and I didn't see any corrosion in the plugs,but I did not open the module and check imside,if any one can lead me in any direction it would be greatly appreciated...Thank you

 

The usual suspect is battery or alternator.

 

Thank you, I have put a new battery in,and the alternator is doing 14volts,any other suggestions!!

 

You will have to get a code reader and check codes.

normally when you have multiple faults it leads to a voltage issue.

Without reading the codes the only other easy thing to try is a new brake switch, they can cause those issues you are experiencing.

 

Thank you for the quick response,I have put a new brake switch in early on when this first happen,and brake lights work,I just charged my battery over night,and it just drove around the block shifting fine and then the F symbol on the dash came on again,I have a code reader but I guess it isn't picking up the codes,I omhed the battery and it was 12.37 after I parked it..I filled the transmission fluid up underneath the truck.. dealer is telling me the valvebody with mechatronic "TCM" but they say they have to put that in and see what happens,I can't gamble 4200.00 on a guess,thank you for any other suggestions!!

 

Codes for the trans will not be readable by a basic reader, you need something more specific.

an F on the trans indicator def means a fault stored in that module.

i think you can rule out voltage, but... to test properly you start the car and turnoin every electrical gizmo possible, full load and then check the voltage at alt or battery. If below 12 you have an alt problem.

but I think you have trans issues.

looking on my phone, so not sure. If you are near so cal I can read the codes.

There is a rebuild kit for the valve body called a zip kit which is easy to follow and new soleinoids are around $600.

Swapping it is about as hard as doing a trans service, with extra time for the valve body removal.

At $4500 I could do a complete rebuild installed.

 

Thank you,do you have a link to the zip kit?? last question,do you think the Mechatronic computer attached to the valvebody could also cause this problem?? It's just weird that I can hardly reset the battery and it fine again,but once the codes trips it won't start until I do a hard reset,then it starts fine....

 

I didn't realize car won't start.

battery ground cable. Just went through this.

call me,number is in my signature.

 

I'm apologize,I'm new to this forum,where do I find your signature?? I don't mind posting my number if it is convenient for you 614-634-5133 my name is Al.. Thank you for your time,really appreciate you

 

Not sure if that's your cell. I texted you a picture