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 MANUALSVOLKSWAGEN2012BEETLE BASE, 2.5L ENG VIN P, STANDARD TRANSREPAIR AND DIAGNOSISELECTRICALMOTORS, SWITCHES, RELAYSOEM CONNECTOR END VIEWS (HATCHBACK) -- BEETLECONN. VIEWS COMFORTVEHICLE ELECTRICAL CONTROL MODULE SYSTEM -J51973-PIN (B)

2012 Volkswagen Beetle Base, 2.5L Eng VIN P, Standard Trans

73-Pin (B)

2012 Volkswagen Beetle Base, 2.5L Eng VIN P, Standard TransSECTION 73-Pin (B)

White Connector

73-Pin Connector -T73B-

Fig 1: Vehicle Electrical Control Module System Connector End View (J519) - White Connector

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Cavity

Function

Switch and instrument illumination regulator -E20-

Right headlight dipped beam bulb -M31-, Front right headlight -MX2-

Left LED module for daytime running light and side light -L176-, Front left headlight -MX1

...

Front left headlight -MX1-

Front right headlight -MX2-

Positive connection 2 (58), in dash panel wiring harness, Positive connection (58), in number plate lights wiring harness ⁽²⁾

...

Left fog light bulb -L22-

Right fog light bulb -L23-

Terminal 30 (fog light)

Connection (RL), in dash panel wiring harness

Terminal 30 (turn signal, brake lamp)

Connection (left turn signal), in headlight wiring harness

Connection 2 (right turn signal), in headlight wiring harness

Connection 2 (54) in dash panel wiring harness

Connection 1 (LIN bus) in main wiring harness

Connection 1 (powertrain CAN bus, low), in main wiring harness

Connection 1 (powertrain CAN bus, high), in main wiring harness

Connection 1 (convenience CAN bus, high), in main wiring harness

Connection 1 (convenience CAN bus, low), in main wiring harness

Diagnostic connection -U31

Connection 2 (LIN bus) in main wiring harness

...

Window wiper position 1 input signal

...

Light switch -E1-

Interior monitoring deactivation switch input signal

Air conditioning system control unit -J301- ⁽³⁾, Heater control unit -J162- ⁽⁴⁾

Wiper motor control unit -J400-

...

Positive connection 2 (58b), in interior wiring harness

...

Alarm horn -H12-

Connection 1 (LIN bus) in dash panel wiring harness ⁽²⁾

Terminal 31

Supply input signal (30) for electronics

...

Fog light switch -E7-

Turn signal switch -E2-

Connection (CCS), in dash panel wiring harness

Turn signal switch -E2-

Connection (RL), in interior wiring harness

Connection (61), in dash panel wiring harness

Positive connection (50), in dash panel wiring harness

Connection (75a), in dash panel wiring harness

Light switch -E1-

Intermittent wiper switch -E22-

...

Clutch position sender -G476-, Mechatronic unit for dual clutch gearbox -J743-

...

Exterior mirror heater button -E231-

Terminal 30

Terminal 31

Connection (53c), in dash panel wiring harness

Intermittent wiper switch -E22-

Frequency modulation (FM) frequency filter in positive wire -R179- I

...

Heated rear window supply input signal (30)

Supply input signal (30), right headlight

...

⁽¹⁾	To December 2012

⁽²⁾	From December 2012

⁽³⁾	To June 2012

⁽⁴⁾	From June 2012

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.