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Memoliito



Member Since: 23 Feb 2024
Location: Corby
Posts: 13
United Kingdom 2016 Range Rover Autobiography 4.4 V8 Fuji White
Gearbox help

After my mechanic serviced gearbox of mine 4.4 2016 i started having gearbox fault P177A-07 and car goes in limp mode and would not go in reverse just revs without moving
I also get this error U0402-00-Invalid data received from TCM
anyone had similar problems before ?
Post #721890 26th Jul 2025 1:16am
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Mikey



Member Since: 10 Jan 2008
Location: Dundee
Posts: 1850
Scotland 

Check the fluid level first.

If that's OK, find out what oil and filter were used. It must be 8HP compatible oil, and an OE filter.

Otherwise...

Click image to enlarge

Post #721912 26th Jul 2025 4:17pm
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Memoliito



Member Since: 23 Feb 2024
Location: Corby
Posts: 13
United Kingdom 2016 Range Rover Autobiography 4.4 V8 Fuji White

mechanic checked level and is saying correct use of OE filter and Zf oil, probably will go for 2nd hand gearbox
My gearbox part number is CPLA-7000-AB ,do i have to find same code gearbox or can use any for 4.4 engine?
Post #721961 27th Jul 2025 9:40pm
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