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= 0BK Transmission (ZF 8HP-55) – Standstill Basic Settings =
 
==  Audi A5 (8T) Active/Dynamic Steering == 
 
== Coding ==
 
'''Coding for this Control Module is normally done via Software Version Management (SVM). If the old Control Module is still accessible read/copy it's Coding to the new Module.
 
 
 
== Basic Setting ==
 
=== 1B-Active Steering ===
 
 
'''<u>Prerequisites:</u>'''<br>
* Battery Voltage = 12.0 - 14.0 V'''<br>
* No fault codes other than [[01087 | 01087 - Basic Setting Not Performed]]'''<br>
 
* Perform G85-Steering Angle Sensor Basic Settings found on this Ross-Tech wiki page: [[Audi A5 (8T) Steering Wheel Electronics#Basic Setting|Audi A4/A5 (8K/8T) Steering Angle Sensor (G85) Calibration]]
 
 
 
 
<span style="color:#000000; background:#FFFF00"> '''- Continue Only after successfully completing the G85 basic settings -''' </span>
 
*Leave the steering wheel in the straight ahead position during the next steps.
 
 
'''[Select]'''<br>
'''[1B-Active Steering]'''<br>
 
'''[Security Access - 16]'''<br>
Enter 61378, to enable the basic setting.'''<br>
'''[Do it!]'''<br>
 
 
'''[Basic Settings - 04]'''<br>
Group 101<br>
'''[Go!]'''<br>
'''[ON/OFF/Next]''' <br>
 
* The results should be stored after a key cycle and fault code(s) should clear.
 
 
'''[Done, Go Back]''' <br>
'''[Fault Codes - 02]'''<br>
Check and clear fault codes.<br>
'''[Close Controller, Go Back - 06]'''<br>
 
 
 
 
 
 
 
 
 
======================================================================
 
 
 
001 Upper Limit Exceeded<br>
002 Lower Specified Value too Low<br>
003 Mechanical/Hydraulic Fault<br>
004 No signal/communication<br>
005 No or Incorrect Basic Settings/Adaptation<br>
006 Short Circuit to positive<br>
007 Short to Ground<br>
008 Implausible Signal/Ranger or Performance<br>
009 Open Circuit/short to ground<br>
010 Open Circuit/short to positive<br>
011 Open Circuit<br>
012 Electrical fault in Circuit<br>
013 Check/Read DTC memory<br>
014 Defective<br>
015<br>
016 Signal outside of Tolerance<br>
 
<br>
 
027 Implausible Signal<br>
028 Short Circuit to positive<br>
029 Short to Ground<br>
030 Open Circuit<br>
031 Open Circuit/short to ground<br>
035 No Indication in Display<br>
036 Open Circuit<br>
037 Faulty<br>
045 Connector<br>
049 No Communications<br>
079 Checking DTC Memory<br>
194 Comparison not Carried Out<br>
 
 
 
 
 
 
 
 
 
 
 
 
 
__FORCETOC__
__FORCETOC__
== 18613/P2181/008577 - Performance Malfunction in Cooling System ==
==== Possible Causes ====
* Faulty Coolant Sensor
* Faulty Coolant Thermostat
* Faulty Wiring, Connections
** Note: This fault code sets when engine coolant temperature mapping falls out of expected range based on operating conditions of the engine.
** For example: Engine warms up, thermostat opens and stays open and coolant temperature drops below normal operating range, the ECM knows the coolant temperature should stay within 80.0...110.0 °C typically.


== Application ==
This procedure performs the '''Fast adaptation''' (standstill adaptation) routine for the ZF 0BK 8-speed automatic transmissions with UDS-based control modules.


''Note: Not all 0BK transmission controllers support this function.''


==== Possible Solutions ====
== Prerequisites ==
* Vehicle stationary, engine idling. 
* Parking brake applied and foot brake held firmly during the entire procedure. 
* Selector lever in '''D'''. 
* Transmission fluid temperature between '''50 °C and 95 °C'''
* Battery charger/maintainer connected. 
* No fault codes related to transmission or engine torque request.


* Check G62 - Engine Coolant Temperature Sender <br>
== When to Perform ==
** Inspect wiring for G62 (Coolant Migration, damage, corrosion, etc)
* After mechatronic unit replacement 
* After clutch or internal transmission repair 
* After ATF service 
* When experiencing harsh or irregular shifting


* Check (if applicable) G83 - Radiator Outlet, Coolant Temperature Sender <br>
== Procedure ==
** Inspect wiring for G83 (Coolant Migration, damage, corrosion, etc)
[Select] → [02-Auto Trans] 
'''[Basic Settings - UDS]'''


* Check Coolant Thermostat
* From the Basic Settings drop-down list, select '''Fast/Quick Adaption (IDE07217)'''
**  Use Graph function in VCDS, Measuring Value Blocks - MVB
* Click '''[Show Measuring Data]''' and add:
** Start Engine cold, graph Coolant Temperature Sender (G62) Typically MVB Group-001
  - Engine speed (IDE00021)
** Hold RPM around 1,500rpm and watch coolant temp increase in Graph until thermostat opens, indicated by a slight drop in coolant temp
  - Fast_adaption; cancellation condition (IDE07220)
** If coolant temp drops below minimum operating temperature (80°C) or never reaches operating temperature, (verified by external thermometer) suspect failed thermostat
  - ATF temperature (IDE00024)
* Apply the parking brake, hold the brake pedal, and move the selector from '''[P]''' to '''[D]''' 
* Press '''[Go!]''' to start the Basic Setting.


* Vehicles with both G62-Engine Outlet, Coolant Temperature Sensor and G83-Radiator Outlet, Coolant Temperature Sensor
=== During the Procedure ===
** Use Measuring Value Block group MVB-130 instead on MVB-001
* Engine speed will increase to about 1,200 rpm 
** G62 should increase in Temperature before G83 increase when engine coolant is cold
* Light jolts or lurching may occur; this is normal
** G83 will increase when the thermostat opens and after G62 reaches operating temperature (80°C)
* The procedure typically runs for 5–10 minutes
** If G62 and G83 both increase while engine warms up, suspect failed thermostat
* Continue holding the brake; do not release!
* Monitor ATF temperature remains within the specified range.


=== The Basic Setting may abort if: ===
* Brake pedal is released or selector not in [D]
* ATF temperature outside 50–95 °C 
* TCM not standstill-capable (engine speed does not rise to ~ 1,200 rpm)


==== Special Notes ====
== Completion ==
When the procedure finishes '''(Finished correctly)''':
* Engine speed returns to normal idle. 
* Shift selector to '''[P]''' when prompted. 
* Click '''[Done, Go Back]''' 
* Read and clear any fault codes if necessary.
* Road  test the vehicle, normally


* Check the stored Freeze Frame data with this fault code.  Freeze Frame information will be found in the fault code description (if the module supports it) or in Generic OBD-II if the vehicle complies with those regulations.
== Notes ==
** Freeze Frame data stored at -40*C is generally an indication of a faulty ECT or wiring.
* Always confirm ATF level and temperature before performing adaptation.   
** Freeze Frame data stored at +140*C is generally an indication of a faulty ECT or wiring.
* Use official factory information if unsure whether the control module supports this function.
** Freeze Frame data stored with in the 68*C ~ 80*C range is an indication that the vehicle was close to, but not within, the cooling systems normal operation range. The Thermostat itself or Cooling system components may be at fault.

Latest revision as of 22:43, 7 November 2025

0BK Transmission (ZF 8HP-55) – Standstill Basic Settings

Application

This procedure performs the Fast adaptation (standstill adaptation) routine for the ZF 0BK 8-speed automatic transmissions with UDS-based control modules.

Note: Not all 0BK transmission controllers support this function.

Prerequisites

  • Vehicle stationary, engine idling.
  • Parking brake applied and foot brake held firmly during the entire procedure.
  • Selector lever in D.
  • Transmission fluid temperature between 50 °C and 95 °C
  • Battery charger/maintainer connected.
  • No fault codes related to transmission or engine torque request.

When to Perform

  • After mechatronic unit replacement
  • After clutch or internal transmission repair
  • After ATF service
  • When experiencing harsh or irregular shifting

Procedure

[Select] → [02-Auto Trans] [Basic Settings - UDS]

  • From the Basic Settings drop-down list, select Fast/Quick Adaption (IDE07217)
  • Click [Show Measuring Data] and add:
 - Engine speed (IDE00021)
 - Fast_adaption; cancellation condition (IDE07220)
 - ATF temperature (IDE00024)
  • Apply the parking brake, hold the brake pedal, and move the selector from [P] to [D]
  • Press [Go!] to start the Basic Setting.

During the Procedure

  • Engine speed will increase to about 1,200 rpm
  • Light jolts or lurching may occur; this is normal
  • The procedure typically runs for 5–10 minutes
  • Continue holding the brake; do not release!
  • Monitor ATF temperature remains within the specified range.

The Basic Setting may abort if:

  • Brake pedal is released or selector not in [D]
  • ATF temperature outside 50–95 °C
  • TCM not standstill-capable (engine speed does not rise to ~ 1,200 rpm)

Completion

When the procedure finishes (Finished correctly):

  • Engine speed returns to normal idle.
  • Shift selector to [P] when prompted.
  • Click [Done, Go Back]
  • Read and clear any fault codes if necessary.
  • Road test the vehicle, normally

Notes

  • Always confirm ATF level and temperature before performing adaptation.
  • Use official factory information if unsure whether the control module supports this function.
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