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Trans failsafe + no gear indicator on dash Trans failsafe + no gear indicator on dash
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  #11  
Old 09-29-2023, 10:13 AM
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Read my thread I shared from my E38 with the 5hp24. A failed solenoid will cause no gear indicator and trans failsafe. I believe I shared how to test the OHMs and shared the expected values. You may be able to do as little as drop the pan and replace the bad solenoid if it is deemed bad to get it back. This info was obtained from a range rover thread someone shared on Xoutpost.
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  #12  
Old 09-29-2023, 10:14 AM
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Quote:
Originally Posted by Supr4 View Post
I'll check on inpa.
Error in dis is solenoid valve 1
Ok, also what is your voltage?
Bad battery or alternator could be allowing solenoid issues to occur...

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Old 09-29-2023, 10:15 AM
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Quote:
Originally Posted by Purplecty View Post
Read my thread I shared from my E38 with the 5hp24. A failed solenoid will cause no gear indicator and trans failsafe. I believe I shared how to test the OHMs and shared the expected values. You may be able to do as little as drop the pan and replace the bad solenoid if it is deemed bad to get it back. This info was obtained from a range rover thread someone shared on Xoutpost.
Very true!!

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Old 09-29-2023, 10:49 AM
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It's stabilized at 13.9 using USB charger with voltage indicator but when changing gear or activating xenons or anything electric it goes down then up again, sometimes there is spikes at 14.5 but very rare. It always did that but it never affected the gearbox. I changed alternator 8month ago
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Old 09-29-2023, 12:07 PM
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What is the interlock cable? I'm not native English. Is it the cable from the gear shift knob to the gearbox ?

Does the symptoms I described can be caused by that ?
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Old 09-29-2023, 12:14 PM
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Originally Posted by Supr4 View Post
What is the interlock cable? I'm not native English. Is it the cable from the gear shift knob to the gearbox ?



Does the symptoms I described can be caused by that ?
The Interlock Cable functions to prevent accidents caused by shifting of gears in a state where the brakes are not actuated by the driver's careless operation in an auto transmission vehicle. So it can cause an error in the readings of the computer thinking that it's in the wrong position making transmission positions lock out or disengage.

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Old 09-29-2023, 12:21 PM
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I saw that definition but where is that cable?
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Old 09-29-2023, 12:40 PM
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Originally Posted by Supr4 View Post
I saw that definition but where is that cable?
You can see the rod at the end of the cable in this picture from CapeX5

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  #19  
Old 09-29-2023, 01:00 PM
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Where it goes to ? Under steering wheel ?
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  #20  
Old 10-01-2023, 09:16 AM
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Today I drove the car and it lost gear position while driving.
Checked gearbox temp and it got to 135degrees Celsius.

I did the test with inpa and all solenoids where failed plus the interlock. Only reverse light reported ok.

When in park if I didn't press the brake I couldn't go to drive so interlock is fine ?
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