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 MANUALSVOLKSWAGEN2012JETTA TDI, 4D SEDAN, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSOEM CONNECTOR END VIEWS -- JETTA & GOLF WAGONCONN. VIEWS AIRBAGAIRBAG CONTROL MODULE -J234
2012 Volkswagen Jetta TDI, 4D Sedan, Standard Trans
Airbag Control Module -J234
2012 Volkswagen Jetta TDI, 4D Sedan, Standard TransSECTION Airbag Control Module -J234
75-Pin Connector -T75-
| Cavity | Function |
|---|---|
| 1 | Battery (+) |
| 2 | Driver's Seat Position Sensor (+) |
| 3 | Ground (in harness) |
| 4 | Driver seat belt switch (+) |
| 5 | Driver seat belt switch (-) |
| 6 | Front passenger seat belt switch (+) |
| 7 | Front passenger seat belt switch (-) |
| 8 | Signal, passenger seat position (optional) |
| 9 | ... |
| 10 | Driver belt force limiter (+) |
| 11 | Driver belt force limiter (-) |
| 12 | Driver belt force limiter (-) (optional) |
| 13 | Driver belt force limiter (+) (optional) |
| 14 | + |
| 15 | - |
| 16 | Front Passenger's Airbag Igniter 2 (-) |
| 17 | Front Passenger's Airbag Igniter 2 (+) |
| 18 | Driver head curtain airbag igniter (+) |
| 19 | Driver head curtain airbag igniter (-) |
| 20 | Front passenger head curtain airbag igniter (-) |
| 21 | Front passenger head curtain airbag igniter (+) |
| 22 | Driver Airbag Igniter (+) |
| 23 | Driver Airbag Igniter (-) |
| 24 | Front Passenger's Airbag Igniter 1 (-) |
| 25 | Front Passenger's Airbag Igniter 1 (+) |
| 26 | Front passenger airbag -disabled- indicator lamp (+) |
| 27 | ... |
| 28 | Ground (in harness) |
| 29 | ... |
| 30 | Airbag Deactivation Switch 1 |
| 31 | ... |
| 32 | Airbag Deactivation Switch 2 |
| 33 | ... |
| 34 | ... |
| 35 | Driver side rear side airbag igniter (+) |
| 36 | Driver side rear side airbag igniter (-) |
| 37 | Front passenger rear side airbag igniter (-) |
| 38 | Front passenger rear side airbag igniter (+) |
| 39 | Driver side rear seat belt tensioner igniter (+) |
| 40 | Driver side rear seat belt tensioner igniter (-) |
| 41 | Front passenger side rear seat belt tensioner igniter (-) |
| 42 | Front passenger side rear seat belt tensioner igniter (+) |
| 43 | Driver's side Airbag Igniter (+) |
| 44 | Driver's side Airbag Igniter (-) |
| 45 | Front Passenger's side Airbag Igniter (-) |
| 46 | Front Passenger's side Airbag Igniter (+) |
| 47 | Driver seat belt tensioner igniter 1 (+) |
| 48 | Driver seat belt tensioner igniter 1 (-) |
| 49 | Front passenger seat belt tensioner igniter 1 (-) |
| 50 | Front passenger seat belt tensioner igniter 1 (+) |
| 51 | ... |
| 52 | ... |
| 53 | Line bus to Passenger occupant detection system control module -J706- (optional) |
| 54 | Front passenger airbag -disabled- indicator lamp (-) |
| 55 | Diagnostic lead to Data bus on board diagnostic interface -J533- |
| 56 | ... |
| 57 | ... |
| 58 | SAT (+) (optional) |
| 59 | SAT (-) (optional) |
| 60 | Driver side Front Crash Sensor (+) |
| 61 | Driver side Front Crash Sensor (-) |
| 62 | Passenger side Front Crash Sensor (+) |
| 63 | Passenger side Front Crash Sensor (-) |
| 64 | Rear side Airbag Crash Sensor (+) (driver side) |
| 65 | Rear side Airbag Crash Sensor (-) (driver side) |
| 66 | Rear side Airbag Crash Sensor (+) (passenger side) |
| 67 | Rear side Airbag Crash Sensor (-) (passenger side) |
| 68 | Driver's side Airbag Crash Sensor (+) |
| 69 | Driver's side Airbag Crash Sensor (-) |
| 70 | Front Passenger's side Airbag Crash Sensor (+) |
| 71 | Front Passenger's side Airbag Crash Sensor (-) |
| 72 | ... |
| 73 | CAN S (optional) |
| 74 | CAN H |
| 75 | CAN L |
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.