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 TREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 1420 (MODULE COMMUNICATIONS NETWORK)DIAGNOSTIC TESTSCOMMUNICATIONS NETWORKSYMPTOM CHART

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

Symptom Chart

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

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The PCM does not respond to the scan tool, or no high speed controller area network (HS-CAN) communication	Fuse Wiring, terminals or connectors PCM ABS module Vehicle dynamics module (VDM) Instrument cluster (IC)	Go to Pinpoint Test A .
The ABS module does not respond to the scan tool	Fuse Wiring, terminals or connectors ABS module	Go to Pinpoint Test B .
The instrument cluster (IC) does not respond to the scan tool	Fuse Wiring, terminals or connectors IC	Go to Pinpoint Test C .
The lighting control module (LCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LCM	Go to Pinpoint Test D .
The HVAC module does not respond to the scan tool	Fuse Wiring, terminals or connectors HVAC module	Go to Pinpoint Test E .
The vehicle dynamics module (VDM) does not respond to the scan tool	Fuse Wiring, terminals or connectors VDM	Go to Pinpoint Test F .
The driver door module (DDM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DDM	Go to Pinpoint Test G .
The driver seat module (DSM) does not respond to the scan tool	Fuse Wiring, terminals or connectors DSM	Go to Pinpoint Test H .
The rear audio and temperature control (RATC) module does not respond to the scan tool	Fuse Wiring, terminals or connectors RATC module	Go to Pinpoint Test I .
The liftgate/trunk module (LTM) does not respond to the scan tool	Fuse Wiring, terminals or connectors LTM	Go to Pinpoint Test J .
The restraints control module (RCM) does not respond to the scan tool	Fuse Wiring, terminals or connectors RCM	Go to Pinpoint Test K .
The parking aid module (PAM) does not respond to the scan tool	Fuse Wiring, terminals or connectors PAM	Go to Pinpoint Test L .
Intermittent no high speed controller area network (HS-CAN) communication, one or more modules are not responding during the network test.	Wiring, terminals or connectors	Go to Pinpoint Test M .
No International Standards Organization (ISO) 9141 network communication, all modules are not responding	Wiring, terminals or connectors RCM PAM LTM	Go to Pinpoint Test N .
No standard corporate protocol (SCP) network communication, all modules are not responding	Wiring, terminals or connectors HVAC module LCM DDM IC RATC module (if equipped) DSM (if equipped)	Go to Pinpoint Test O .
No high speed controller area network (HS-CAN) communication, all modules are not responding	Fuse Wiring, terminals or connectors PCM ABS module VDM IC	Go to Pinpoint Test A .
No power to the scan tool	Fuse Wiring, terminals or connectors Scan tool	Go to Pinpoint Test P .

RENDER: 1.0x

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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.