View source for Huracán (4T) Transmission Electronics

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'''Information'''<br>
The page applies to the Lamborghini DL800/0BH. This transmission is an electronically-controlled automatic transmission with two clutches for uninterrupted torque delivery during acceleration. It offers various driving modes, from fully automatic to exclusively manual mode, designed to maximize performance. <br>


'''General Information''' <br>
Caution: When the engine is idling and not in Park (P) or Neutral (N), the vehicle might move, so it's advised to press the brake to prevent unintended movement. The automatic parking lock engages when the engine is off and disengages when a gear is selected. Additionally, there's an emergency release mechanism available for manual disengagement (see owner's/service manual). <br>


'''Disclaimer and Waiver''' <br>
''By engaging in the procedures outlined herein, applicable only to stock (unmodified) vehicles, you acknowledge and assume full responsibility for any potential consequences or damages. Please be aware that if the vehicle has been modified or altered, our procedure may fail or lead to adverse outcomes. Note that modifications void warranties. Proceed at your own risk!'' <br>



The Transmission type can be identified by evaluating the data in the Auto-Scan: 

   Address 02: Auto Trans (J217)       Labels:. 0BH-927-711.clb
      Part No SW: 4T0 927 155 E    HW: 0BH 927 711 F
      Component: LB 7G     NAR H10 3602
      ASAM Dataset: EV_TCMDL800041 001013





== Coding ==

Due to Coding variants for the DL800/0BH transmission it is recommended to use the coding from the original module when replacing the TCM. VCDS will display coding information within the Long Coding Helper.

== Basic Setting ==

=== Standstill Adaptation procedure for 0BT/0BH 0DE 0GC (UDS only) ===

'''<u>Prerequisites:</u>'''<br>

* Transmission fluid temperature greater than 15°C.<br>
** ''Do NOT continue if the temp is out of specs!'' <br>
** '' Use Advanced Measuring Values = [Control Module temperature] (IDE00102)'' <br>
* Selector lever in [P]. <br>
* Engine idle speed, do not press accelerator pedal.<br>
* Parking brake and foot brake applied during the entire procedure.<br>

* Note: Not all transmission controllers support this function. <br>
* Be sure all the Prerequisites are followed, important! - The brake pedal must be depressed during the entire procedure. <br>


'''[Select]''' <br>
'''[02 - Auto Trans]''' <br>
'''[Basic Settings - UDS]''' <br>
Select [Basic settings of transmission] (IDE02903)<br>

Next click [Show Measuring Data] and select: <br>
* [Engine RPM] (IDE00021)<br>
* [Main status of abort code basic setting] (IDE02824)<br>
* [Status of basic setting] (IDE00322)<br>
* [Status of basic setting data for clutch] (IDE02859)<br>
* [Status of basic setting data; gear selector] (IDE02858)<br>
* [Sub-status of abort code basic setting] (IDE02825)<br>
'''Then press [Go!]''' <br>

* During the basic setting procedure, there maybe some loud gear shifting noises from the transmission, this is normal. <br>

'''Basic settings may not complete successfully if:''' <br>
* The fluid temperature gets too hot. <br>
* Brake is released <br>


Once complete, there should be an indication of this in the [Status of Basic Settings] (IDE00322). <br>

Then click - [Done, Go Back] and Check for fault codes. <br>



=== Automatic transmission fluid level check ===

'''<u>Prerequisites:</u>'''<br>
* Notes on Fluid Temperature: <br>
** Transmission fluid level changes with temperature. <br>
** Valid temperature range: 30°C to 45°C. <br>
** Overfill risk if too low; underfill risk if too high. <br>
** Allow transmission to cool if vehicle is hot. <br>

* Basic Setting Check:
** Vehicle must be stationary and on a level surface. <br>
** Engine at idle speed. <br>
** Parking brake engaged. <br>
** 1st and 2nd gears engaged. <br>
** [ATF temperature] 30°C to 45°C. (IDE00024)<br>

* Confirmation: <br>
** If all conditions are met, the basic setting starts automatically when selected on VCDS. <br>

'''<u>Performance Check:</u>''' <br>
* Set Vehicle on Lifting Platform: <br>
** Ensure vehicle is stationary and on a flat surface. <br>
** Engage parking brake. <br>
* Start Engine, Allow engine to idle. <br>
* Gear Engagement: <br>
** Engage '1' using the upshift paddle, then press 'M' on central module. <br>
** Engage 'P' on central module. <br>


'''<u>Check Preconditions</u>''' <br>
* Transmission Fluid Temperature Check: <br>
** Monitor temperature using VCDS and the Advanced Measuring Values. <br>
** Temperature must be within the valid range (30°C to 45°C). (IDE00024)<br>

* Engine RPM Check: <br>
** Ensure engine speed is within the range (500 to 1000 rpm). (IDE00021)<br>

* Vehicle Speed Sensor: <br>
** Vehicle speed should be less than 0.1 km/h. (IDE00075)<br>

* Shift Position Check: <br>
** Verify the gear is in 'P' (Position_P_Stop) (IDE00096) <br>



'''<u>Start Basic Setting Routine</u>'''<br>
*Using VCDS, choose the Basic Settings:
** [Check ATF level] (IDE08089) <br>

* Monitor various parameters during the process (e.g., transmission fluid temperature, clutch values, gear positioner actual positions). <br>
** Use "Show measuring data" <br>


* Possible Abort Conditions: <br>
** Routine will stop if transmission fluid temperature exceeds 45°C.
**  Possible reasons for routine abort include: <br>
*** Parking brake not engaged. <br>
*** Basic setting not started or active. <br>
*** Gear actuator control position not reached. <br>

'''<u>Completion and Repetition</u>'''<br>

* Completion: <br>
** If the basic setting routine completes successfully, switch off the engine. <br>

* Repetition: <br>
** If the routine is aborted, address the issue (e.g., cool down transmission fluid) and repeat the basic setting. <br>
** If necessary, perform an ignition off/on cycle and repeat the routine. <br>

* Additional Information <br>
** End of Test Module: <br>
*** Ensure all conditions are met before finalizing the transmission fluid level check. <br>
*** Document any issues and corrective actions taken during the process. <br>


* Troubleshooting <br>

** Diagnostic Link Failure: <br>
*** If communication to the Mechatronic unit fails, check the diagnostic link and repeat the test. <br>

** Event Memory Entries: <br>
*** If the basic setting is aborted due to event memory entries in the Mechatronic unit, follow the test plan to resolve these entries. <br>

* Final Notes <br>
** Repeat Basic Setting if Necessary: <br>
*** Ensure all conditions are met and repeat the basic setting if required. <br>
*** Monitor and adjust as per the guidelines provided in the test steps. <br>





=== Special Notes ===

[[Category:Transmissions]]