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 R-LINE, 2.0L ENG VIN SREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 939 (MODULE COMMUNICATIONS NETWORK SYSTEM)DIAGNOSTIC TESTSCOMMUNICATIONS NETWORKSYMPTOM CHART

2013 Volkswagen Beetle R-Line, 2.0L Eng VIN S

Symptom Chart

2013 Volkswagen Beetle R-Line, 2.0L Eng VIN SSECTION Symptom Chart

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.

Symptom Chart

Condition	Possible Sources	Action
The powertrain control module (PCM) does not respond to the scan tool or no high speed controller area network (HS-CAN) communication	Fuse Circuitry PCM Anti-lock brake system (ABS) module Four wheel drive (4WD) control module (if equipped) Instrument cluster	Go to Pinpoint Test A .
The anti-lock brake system (ABS) module does not respond to the scan tool	Fuse Circuitry ABS module	Go to Pinpoint Test B .
The four wheel drive (4WD) control module does not respond to the scan tool	Fuse Circuitry 4WD control module	Go to Pinpoint Test C .
The instrument cluster does not respond to the scan tool	Fuse Circuitry Instrument cluster	Go to Pinpoint Test D .
The smart junction box (SJB) does not respond to the scan tool	Fuse Circuitry SJB	Go to Pinpoint Test E .
The restraints control module (RCM) does not respond to the scan tool	Fuse Circuitry RCM	Go to Pinpoint Test F .
The parking aid module does not respond to the scan tool	Fuse Circuitry Parking aid module	Go to Pinpoint Test G .
No International Standards Organization (ISO) 9141 network communication	Circuitry RCM Parking aid module	Go to Pinpoint Test H .
No medium speed controller area network (MS-CAN) communication, all modules are not responding	Circuitry SJB Instrument cluster	Go to Pinpoint Test I .
No high speed controller area network (HS-CAN) communication, all modules are not responding	Circuitry ABS module 4WD control module (if equipped) Instrument cluster PCM	Go to Pinpoint Test A .
No power to the scan tool	Fuse Circuitry Scan tool	Go to Pinpoint Test J .

RENDER: 1.0x

NO RELATED

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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.