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| ------------------------------------------------------------ | | ------------------------------------------------------------ |
| | == Visual Summary: SFD Requirements for Service Tasks == |
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| __FORCETOC__
| | {| role="presentation" class="wikitable" style="background:lightgray; text-align:center; width:99%;" border="0" |
| = Readiness Test (UDS only) = | | |- |
| * This Tech Tip demonstrates how to perform the [Automatic test sequence] for UDS-based Engine Control Modules (ECMs) using VCDS.
| | ! Service Task !! Vehicles Without SFD !! SFD in 17-Instruments<sup>1</sup> !! SFD in 5F-Infotainment<sup>2</sup> !! SFD2 Gateway Filter<sup>3</sup> |
| * Basic Setting performs the required Readiness Tests on modern VW/Audi vehicles equipped with UDS protocol engine controllers.
| | |- |
| * Use of this procedure is typically for after repairs or component replacement affecting emissions-related systems, or after clearing DTCs.
| | ! SRI (Service Reminder) Reset |
| | | style="background:limegreen" | Just perform SRI reset || style="background:orange" | Unlock SFD in 17 first || style="background:orange" | Unlock SFD in 5F first || style="background:red" | Unlock Gateway (19), then unlock 5F |
| | |- |
| | ! Is SFD Unlock Required? |
| | | style="background:limegreen" | No || style="background:orange" | Yes || style="background:orange" | Yes || style="background:red" | Yes in 19 and 5F |
| | |- |
| | ! Can You Save Adaptation Values? |
| | | style="background:limegreen" | Yes || style="background:orange" | Yes, after unlocking 17 || style="background:orange" | Yes, after unlocking 5F || style="background:red" | Unlock 19 to disable filter, then unlock needed module(s) |
| | |} |
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| ==== Special Tools ====
| | <sup>1</sup> 17 – Instruments: Cluster, warnings, service interval |
| * VCDS (VAG-COM Diagnostic System)
| | <sup>2</sup> 5F – Infotainment / Information Control Unit |
| | | <sup>3</sup> 19 – CAN Gateway with SFD2 diagnostic filter |
| ==== Prerequisites ====
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| * Engine must be running
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| * All electrical consumers OFF (A/C, headlights, rear defrost, seat heaters, etc.)
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| * No active Diagnostic Trouble Codes (DTCs) – Clear all fault codes prior to starting the test
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| * Engine coolant temperature must be at least 80°C (176°F)
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| * <span style="color:red;">Must be performed outside or in a well vented area only!</span>
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| ==== Workshop Procedure with VCDS ====
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| * Connect to the vehicle using VCDS.
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| * Go to '''[01 - Engine]'''
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| * Check for and clear any fault codes.
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| * Click on the '''[Basic Settings]''' button.
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| * Select '''[Automatic test sequence]''' or '''[Automatic test procedure]''' from the available list.
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| * Click on the '''[Show Measuring Data]''' checkbox and include the following Measuring Values:
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| {| class="wikitable"
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| ! Measuring Value !! Description
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| |-
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| | IDE00450 || '''Operating Instructions''' – ''Follow all prompts provided here''
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| |-
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| | IDE00451 || '''Currently Running Routine''' – ''Indicates the test currently in progress''
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| |-
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| | IDE00030 || '''Status of Actuator Test''' – ''Displays overall status of test procedure''
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| |-
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| | IDE00727 || '''Test Steps Still to Be Performed''' – ''Should count down to 0 when complete''
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| |-
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| | IDE00021 || '''Engine Speed''' – ''Follow any required RPM prompts shown in Operating Instructions''
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| |-
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| | IDE00025 || '''Coolant Temperature''' – ''Should be at or above 80°C before beginning''
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| |}
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| * Click the '''[Go]''' button to begin the Basic Setting procedure.
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| * When prompted, '''press and hold both the brake and accelerator pedals simultaneously.''' Keep them pressed until the test finishes.
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| * When the test completes successfully, the '''IDE00450 [Operating Instructions]''' field will display:
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| ''''System OK'''' or ''''Finished correctly''''
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| ==== Special Notes ====
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| # The duration of the Automatic Test Sequence may vary depending on vehicle platform and engine type.
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| # If the sequence fails or does not complete, verify that all prerequisites are met, especially coolant temperature and fault-free status.
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| # This function is only available in UDS-based engine control modules. Non-UDS controllers use a different Readiness procedure, see Repair Manual.
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| # If the [Go] button is grayed out or unavailable, ensure that the engine is running and that the selected test is supported by the ECU.
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| [[Category:Tech Tips]]
| |
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Visual Summary: SFD Requirements for Service Tasks
| Service Task |
Vehicles Without SFD |
SFD in 17-Instruments1 |
SFD in 5F-Infotainment2 |
SFD2 Gateway Filter3
|
| SRI (Service Reminder) Reset
|
Just perform SRI reset |
Unlock SFD in 17 first |
Unlock SFD in 5F first |
Unlock Gateway (19), then unlock 5F
|
| Is SFD Unlock Required?
|
No |
Yes |
Yes |
Yes in 19 and 5F
|
| Can You Save Adaptation Values?
|
Yes |
Yes, after unlocking 17 |
Yes, after unlocking 5F |
Unlock 19 to disable filter, then unlock needed module(s)
|
1 17 – Instruments: Cluster, warnings, service interval
2 5F – Infotainment / Information Control Unit
3 19 – CAN Gateway with SFD2 diagnostic filter
