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HOMESERVICE MANUALSVOLKSWAGEN2012BEETLE BASE, 2.5L ENG VIN P, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1769 (ENGINE CONTROLS - PINPOINT TEST HG: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM THROUGH PINPOINT TEST JD: CRANKSHAFT POSITION (CKP) SENSOR - (EXCEPT DIESEL & HYBRID))PINPOINT TEST HU: INTAKE AIR SYSTEMSTEST PROCEDURE
2012 Volkswagen Beetle Base, 2.5L Eng VIN P, Standard Trans

Test Procedure

2012 Volkswagen Beetle Base, 2.5L Eng VIN P, Standard TransSECTION Test Procedure
WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
  1. HU1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) 
    • Are DTCs P0660, P0663, P1512, P1513, P1516, P1517, P1518, P1519, P151A, P1520, P1537, P1538, P1549, P2004, P2005, P2006, P2007, P2008, P2014, P2015, P2019, P2020, P2070, or P2071 present? 
    Yes No
    For DTCs P0660, P0663, P1549, P2070 or P2071, GO to  HU43.
    For DTCs P1512, P1513, P1516, P1517, P1518, P1519, P1520, P1537, P1538, P2004, P2005, P2006, P2007, P2008, P2014, P2015, P2019 or P2020, GO to  HU15.
    For DTC P151A, Mustang 4.6L, Explorer 4.6L, Explorer Sport Trac 4.6L, and Mountaineer 4.6L.
    GO to  HU18.
    For DTC P151A, GO to  HU17.    		 For lack/loss of power, GO to  HU43.
    For all other symptoms without DTCs, GO to  HU2.
  2. HU2 PART THROTTLE SYMPTOM 
    • Are any part throttle concerns present? 
    Yes No
    GO to  HU7. GO to  HU3.
  3. HU3 CHECK THE BASE IDLE SPEED 
    NOTE: The vehicle must be at operating temperature and at idle for a minimum of 1 minute.
    • Key ON, engine running.
    • Determine if the idle speed is incorrect. Refer to the REFERENCE VALUES article Typical Reference Value Charts, if necessary.
    • Access the PCM and monitor the RPM PID.
    • If equipped, read the vehicle tachometer.
    • Is vehicle idle speed correct? 
    Yes No
    GO to  HU5. GO to  HU4.
  4. HU4 CHECK THE THROTTLE ARM CONTACTS 
    • Key in OFF position.
    • Check that the throttle arm contacts the return stop.
    • Is the idle speed high? 
    Yes No
    GO to  HU9. GO to  HU10.
  5. HU5 CHECK FOR BINDING OR STICKING IN THE THROTTLE SYSTEM 
    • Gently cycle the throttle from fully closed to fully open and back to fully closed. Check for sticking or binding during rotation.
    • Is a stick and bind condition present? 
    Yes No
    GO to  HU6. GO to  HU7.
  6. HU6 ISOLATE THE BINDING AND/OR STICKING CONCERN 
    CAUTION: Do not attempt to clean the throttle bore and plate area. Cleaning damages the throttle body assembly.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.