![]() | Home > Technical (L322) > Shift Solenoid 2/Trans Fail Safe on ZF5HP24 gearbox |
![]() ![]() |
|
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 984 ![]() ![]() |
I could test your solenoid for you, although it’s probably easier just to send you one to swap out and see if the problem disappears (MV2 in the photo). It’s just as likely to be the wiring harness at fault, but substituting the solenoid is a good first step.
Phil |
||||||||||
![]() |
|
SLB23 Member Since: 22 Aug 2022 Location: Shropshire Posts: 4 ![]() ![]() ![]() |
Brilliant! How do i go about buying one from yourself? If it was the harness are you able to just swap them out?
|
||
![]() |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 984 ![]() ![]() |
Yes, the internal wiring harness can be swapped out as well with the transmission in situ. Replacement of the solenoid and the wiring harness are both covered in RAVE so it’s a job that Land Rover even allowed their technicians to do.
|
||
![]() |
|
SLB23 Member Since: 22 Aug 2022 Location: Shropshire Posts: 4 ![]() ![]() ![]() |
Fantastic i'll drop a dm now |
||
![]() |
|
SLB23 Member Since: 22 Aug 2022 Location: Shropshire Posts: 4 ![]() ![]() ![]() |
Finally got round to putting the harness & solenoid in the transmission & now it's all fully working as normal. Can finally drive longer than 10 minutes with no warning sounds! Big thanks to Phil for helping & selling me the parts. Onto the rest of the list now! |
||
![]() |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 984 ![]() ![]() |
|||
![]() |
|
richyx Member Since: 13 Dec 2023 Location: nuneaton Posts: 4 ![]() ![]() |
sorry for dragging up an old post but ive just come across this and registered to get some info but seems i cant pm you
|
||
![]() |
|
richyx Member Since: 13 Dec 2023 Location: nuneaton Posts: 4 ![]() ![]() |
or if anyone knows where i can get spares for the gearboxes |
||
![]() |
|
richyx Member Since: 13 Dec 2023 Location: nuneaton Posts: 4 ![]() ![]() |
error code im getting is 4 pressure regulator solenoid 4 |
||
![]() |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 984 ![]() ![]() |
So, the shift solenoids are the three ‘brown body’ solenoids (MV1, MV2 & MV3) and the pressure regulator solenoids have the black caps (EDS2, EDS3, EDS4 & EDS5).
EDS1 is a pressure regulator with a green cap and this works the opposite way round to the black cap solenoids i.e. increasing current reduces pressure, rather than increasing it. This is used for controlling main system pressure and is designed to failsafe to maximum pressure in the event of the electrics being lost. Your error code appears to indicate a fault with EDS4. You can check if the solenoid windings and the wiring loom are intact by measuring the resistance between pins 11 & 16 at the 16-pin connector at the rear of the transmission. The reading should be around 5.8 to 6.0Ω
If the resistance reading is incorrect, you will have to detach the loom from the solenoid and then re-measure, to determine whether it’s the solenoid at fault or an issue with the wiring. If it’s easier, you could also measure the resistance at the transmission ECU under the bonnet (between pins 7 & 21). This has the added advantage of checking the rest of the transmission wiring loom, too.
![]() Identical solenoids and wiring loom were used in later BMW and Jaguar models fitted with the 5HP24, but you need to avoid very early models. Phil |
||||||||||||||||
![]() |
|
richyx Member Since: 13 Dec 2023 Location: nuneaton Posts: 4 ![]() ![]() |
ive sent you a pm as well
|
||
![]() |
|
![]() ![]() |
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2025 Futuranet Ltd & Martin Lewis
