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Differences KWP versus UDS

ODX at Volkswagen and Audi. Differences KWP versus UDS. ODX Begriffserklärung What sigifies „ ODX“?. ODX = O pen D iagnostic data e X change (ASAM/ISO-Standard). ODX describes all diagnostic data ,

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Differences KWP versus UDS

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  1. ODX at Volkswagen andAudi DifferencesKWP versus UDS

  2. ODX Begriffserklärung Whatsigifies „ODX“? ODX = Open Diagnostic data eXchange (ASAM/ISO-Standard) ODX describes all diagnosticdata, whichisnecessaryforthedataexchangebetween (VAS) testequipmentandthe ECUs in thecar.

  3. withISO TP / UDS / ODX: Application ISO-API Calculation commutabilitythroughstandardizedinterfaces raughvalues Sensors Actuators Motivation fortheintroductionof ODX Whatischanging in the ECU andthetester withKWP 2000 light plus Application VW / Audi-specific Calculation raughvalues Sensors Actuators

  4. ComparisonKWP 2000 versus UDS / ODX Visualisationofthefunction „readmeasurevalues“ old ? actual: missinginformation ?

  5. new ECU withISO UDS/ ODX … withISO UDS/ ODX withdescriptionandscaleunit ComparisonKWP 2000 versus UDS / ODX Visualisationofthefunction „readmeasurevalues“ new anyselection

  6. VAG-Codes.xls ComparisonKWP 2000 versus UDS / ODX ActuatortestwithKWP2000 Complicatedstatemachine in the ECU Activate actuatortest Ilumination ECU response: fix measurevalueblock Motor for central locking leaving home lights lower window lifter mirrorfunction run up window lifter indicator(in the mirror) 85% Ein Aus Inaktiv

  7. Ilumination leaving home lights Motor for central locking lower window lifter mirrorfunction Indicator(in the mirror) run up window lifter ComparisonKWP 2000 versus UDS / ODX ActuatortestwithUDS / ODX activate actuator ECU response: Measurevalues statemachine in thetester

  8. ComparisonKWP 2000 versus UDS / ODX Visualisationofthefunction– „selectivactuatortest“ … withUDS / ODX KWP2000 actual: nofunction-inputpossible!

  9. ComparisonKWP 2000 versus UDS / ODX Visualisationofthefunction- Coding new old actual: whatiscoded? .. withISO UDS/ ODXplaintext

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