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Home >> Volkswagen >> 2004 >> GTI VR6 >> Repair and Diagnosis >> External Pages >> Different car >> Section 106 (2.8L - Fuel Injection Ignition, Engine Code(S): AFP (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Output Diagnostic Test Mode (DTM) (scan tool function 03) >> Output Diagnostic Test Mode (DTM), activating >> Requirements

Output Diagnostic Test Mode (DTM), activating: Requirements

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 Volkswagen Jetta, 2002 Volkswagen GTI, 2001 Volkswagen Jetta, 2001 Volkswagen GTI, and 2000 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Coolant Fan Control Thermal Switch
GW00000157Courtesy of VOLKSWAGEN UNITED STATES, INC.
Fig 2: Identifying Main Fuse Panel
GW00000097Courtesy of VOLKSWAGEN UNITED STATES, INC.
NOTE:
  • Checks using the output Diagnostic Test Mode (DTM) can only be performed if the engine is not running and the ignition is switched on.
  • The output DTM sequence will be aborted if the engine is started or a rotational impulse is recognized.
  • During the output DTM sequence individual components will be activated until advancing to the next component by pressing the → button.
  • Components are checked audibly or by touch.
  • The electric fuel pump will run during the complete output DTM.
  • The output DTM sequence will be aborted after 10 minutes.
  • Run engine briefly first if there is a requirement to repeat the output DTM.
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