Member Since: 02 Feb 2019
Location: Monster
Posts: 58
LR4 4.0 V6 U2023
Hi guys,
I didn’t drove my disco 4 for 2 weeks. Battery died after starting attempt.
Took battery out, charged, and back in after a day.
Now, when I drive it jumps to gear fault. Code U2023-86.
Only 3 gear available.
Thought it needed a tranny oil and filter change. So done that. Without improvements.
The IId tool also refers to transmission. Control module network signal calibration data. Bus signal. Message failure
So I started crying when called the garage and the tells me need to change zf megatronic in the tranny worth of 1500€.
My feelings saying it got to be something with battery. Do I need to change it? Even if I have charged? Do I need to perform any steps to change battery? Resetting or programming gearbox?
Thank you for all your inputs.
Sam.
18th Jun 2019 6:58 pm
Globetrotter448
Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1807
"u" codes are generally information codes. Assuming you did not have the fault prior to parking it for a couple of weeks you could disconnect the battery and then touch cable ends together for say 30 secs (possibly need a screwdriver to reach across the cables) this would do a complete reset and may fix your problem. It is possible that the battery needs replacing - check its voltage.
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