Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2013BEETLE BASE, 2D HATCHBACK, 2.5L ENG VIN X, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 939 (MODULE COMMUNICATIONS NETWORK SYSTEM)
2013 Volkswagen Beetle Base, 2D Hatchback, 2.5L Eng VIN X, Automatic Trans
Section 939 (Module Communications Network System)
2013 Volkswagen Beetle Base, 2D Hatchback, 2.5L Eng VIN X, Automatic TransSECTION Section 939 (Module Communications Network System)
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnostic Tests
- Communications Network
- Notes
- Principles of Operation
- Inspection and Verification
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test A: The Powertrain Control Module (PCM) Does Not Respond To The Scan Tool or No High Speed Controller Area Network (HS-CAN) Communication
- Pinpoint Test B: The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool
- Pinpoint Test C: The Four Wheel Drive (4WD) Control Module Does Not Respond To The Scan Tool
- Pinpoint Test D: The Instrument Cluster Does Not Respond To The Scan Tool
- Pinpoint Test E: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
- Pinpoint Test F: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
- Pinpoint Test G: The Parking Aid Module Does Not Respond To The Scan Tool
- Pinpoint Test H: No International Standards Organization (ISO) 9141 Network Communication
- Pinpoint Test I: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding
- Pinpoint Test J: No Power To The Scan Tool
- Communications Network - Hybrid
- Notes
- Principles of Operation
- Inspection and Verification
- Symptom Chart
- Pinpoint Tests
- Pinpoint Test K: The Powertrain Control Module (PCM) Does Not Respond To The Scan Tool or No High Speed Controller Area Network (HS-CAN) Communication
- Pinpoint Test L: The Anti-Lock Brake System (ABS) Module Does Not Respond To The Scan Tool
- Pinpoint Test M: The Four Wheel Drive (4WD) Control Module Does Not Respond To The Scan Tool
- Pinpoint Test N: The Instrument Cluster Does Not Respond To The Scan Tool
- Pinpoint Test O: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
- Pinpoint Test P: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
- Pinpoint Test Q: The Parking Aid Module Does Not Respond To The Scan Tool
- Pinpoint Test R: The Traction Battery Control Module (TBCM) Does Not Respond To The Scan Tool
- Pinpoint Test S: The Power Steering Control (PSC) Module Does Not Respond To The Scan Tool
- Pinpoint Test T: The Transmission Control Module (TCM) Does Not Respond To The Scan Tool
- Pinpoint Test U: No International Standards Organization (ISO) 9141 Network Communication
- Pinpoint Test V: No Medium Speed Controller Area Network (MS-CAN) Communication, All Modules Are Not Responding
- Pinpoint Test W: No Power To The Scan Tool
- Communications Network
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When to See a Mechanic
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.