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Home >> Volkswagen >> 1996 >> Passat GLS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - Gasoline >> Engine Sensors & Switches >> Intake Air Temperature Sensor >> 2.8L
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Intake Air Temperature Sensor: 2.8L

  1. Turn ignition off. Disconnect IAT sensor. Remove IAT sensor from intake manifold and plug opening in manifold. Reconnect IAT sensor to wiring harness.
  2. Connect scan tool to Data Link connector (DLC) located in center console, in front of shift lever. Start engine and allow it to idle. With scan tool in READ TEST VALUE BLOCK function, select group "03" and read IAT sensor value in field No. 4 of scan tool.
  3. Spray IAT sensor with cooling spray and observe value on scan tool. Scan tester value must decrease. If temperature value does not change, repair IAT sensor circuit or replace IAT sensor as necessary. After repairs, erase DTC memory, if applicable, and select END OUTPUT function.
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