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.
Airbag Control Module, Data Bus On Board Diagnostic Interface, Control Module For Emergency Call Module And Communication Unit
J234
Airbag Control Module
J533
Data Bus on Board Diagnostic Interface
J949
Control Module for Emergency Call Module and Communication Unit
T16c
16-Pin Connector
T17o
17-Pin Connector, Red
T20b
20-Pin Connector, Black
T54c
54-Pin Connector, Black
T54d
54-Pin Connector, Blue
T142a
142-Pin Connector, Yellow
TS19
Front Passenger Seat Coupling Point
U31
Diagnostic Connection
B759
Crash Signal Connection (in Main Wiring Harness)
*
Refer to Applicable Seat Adjustment Wiring Diagram
*2
For Vehicles with Emergency Call Module
*3
Depending on Equipment
*4
For Vehicles with Lane Change Assistance
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.