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Home >> Volkswagen >> 2000 >> GTI GLX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 2.8L - On Board Diagnostic (OBD) - AFP (A4 Platform) >> 01 - On Board Diagnostic (OBD) >> Output Diagnostic Test Mode (DTM) (scan tool function 03) >> Output Diagnostic Test Mode (DTM), activating >> Notes
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Output Diagnostic Test Mode (DTM), activating: Notes

The output Diagnostic Test Mode (DTM) activates the following components in the stated sequence:

  1. Evaporative Emission (EVAP) canister purge regulator valve -N80-
  2. Secondary Air Injection (AIR) solenoid valve -N112-
  3. Secondary Air Injection (AIR) pump relay -J299-
  4. Intake Manifold change-over valve -N156-
  5. Leak Detection Pump (LDP) -V144-
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