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.
Towing Recognition Control Module, Vehicle Electrical System Control Module, Data Bus On Board Diagnostic Interface, Engine/Motor Control Module, Brake Booster
J345
Towing Recognition Control Module
J519
Vehicle Electrical System Control Module
J533
Data Bus on Board Diagnostic Interface
J623
Engine/Motor Control Module
NX6
Brake Booster
T2o
2-Pin Connector, Black
T2p
2-Pin Connector, Black
T10ab
10-Pin Connector, Black
T17q
17-Pin Connector, Red
T17r
17-Pin Connector, Red
T26b
26-Pin Connector, Black
T32g
32-Pin Connector, Blue
T40a
40-Pin Connector, Black
T73a
73-Pin Connector, Black
T73b
73-Pin Connector, Black
TI
Coupling Point in Interior
TIUL
Coupling Point in Interior, Bottom Left
B273
Positive Connection (15) (in Main Wiring Harness)
B335
Connection 54 (in Main Wiring Harness) 1
B397
Comfort System CAN Bus High Connection 1 (in Main Wiring Harness)
B399
Comfort System CAN Bus High Connection 3 (in Main Wiring Harness)
B406
Comfort System CAN Bus Low Connection 1 (in Main Wiring Harness)
B408
Comfort System CAN Bus Low Connection 3 (in Main Wiring Harness)
*
Refer to Applicable Electric Drive System, Engine/Motor Control Module Wiring Diagram
*2
Refer to Applicable Wiring Diagram for Fuses in Vehicle Interior
*3
Refer to Applicable Wiring Diagram for Data Bus Networking
*4
Refer to Applicable Brake System Wiring Diagram
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.