Passengerprotection -> Removing and installing airbag control unit [J234] for Your Volkswagen Multivan SUV Seventh Generation (2024-2025)

lk  
Multivan 2025 ➤ , Multivan 2022 ➤  
General body repairs, interior - Edition 09.2024  
3
Airbag control unit  
3.1  
Assembly overview – airbag control unit  
1 - Electrical connector  
2 - Cap nut  
❑ Qty. 2  
❑ 9 Nm  
3 - Airbag control unit - J234-  
❑ Earth connection to  
body via housing  
❑ ⇒ Rep. gr. 69 ;  
Removing and instal‐  
ling airbag control unit  
[J234]  
4 - Nut  
❑ 9 Nm  
3.2  
Removing and installing airbag control  
unit [J234]  
Removing  
If the airbag control unit - J234- has been renewed, conclude  
the test plan for the renewal of the control unit:  
– Carry out function “Renew control unit” using ⇒ Vehicle diag‐  
nostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .  
64  
Rep. gr.69 - Passenger protection  
Multivan 2025 ➤ , Multivan 2022 ➤  
General body repairs, interior - Edition 09.2024  
Continued  
– Disconnect battery earth cable ⇒ Electrical system; Rep.  
gr. 27 ; Battery; Disconnecting and connecting battery .  
– Remove centre console ⇒ Rep. gr. 68 ; Removing and  
installing centre console .  
CAUTION  
It is possible to trigger pyrotechnic components unintentional‐  
ly.  
Risk of injury  
– Discharge static electricity by briefly touching door striker  
plate.  
NOTICE  
Risk of irreparable damage due to electrostatic discharge.  
– Do not touch connector contacts with your hands.  
– Touch the lifting platform or other earthed object to dis‐  
charge static electricity.  
– Disconnect electrical connector -1-.  
– Unscrew nuts -2-.  
NOTICE  
Risk of damage to airbag control unit. Electrical connectors  
corrode when exposed to moisture.  
– After unplugging connectors for control unit, cover them or  
seal them off to prevent moisture from entering.  
– Remove airbag control unit - J234- -3-.  
Installing  
Install in reverse order of removal, observing the following:  
– Connect electrical connector until it engages audibly.  
– Connect battery earth cable ⇒ Electrical system; Rep.  
gr. 27 ; Battery; Disconnecting and connecting battery .  
CAUTION  
Pyrotechnic components can trigger unintentionally.  
Risk of injury.  
– Keep far away from pyrotechnic components when switch‐  
ing on ignition.  
– Switch on ignition.  
3. Airbag control unit  
65  
Multivan 2025 ➤ , Multivan 2022 ➤  
General body repairs, interior - Edition 09.2024  
– Read and clear event memory using ⇒ Vehicle diagnostic  
tester.  
If the airbag control unit - J234- has been renewed, conclude  
the test plan for the renewal of the control unit:  
lk  
– Carry out function “Renew control unit” using ⇒ Vehicle diag‐  
nostic tester ⇒ Rep. gr. 00 ; Access to diagnoses .  
Continued  
Tightening torques  
♦ ⇒ Rep. gr. 69 ; Assembly overview – airbag control unit  
66  
Rep. gr.69 - Passenger protection  

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