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.
Battery Regulation Control Module, Telematics Interface Control Module
J533
Data Bus on Board Diagnostic Interface
J840
Battery Regulation Control Module
J1221
Telematics Interface Control Module
SM
Fuse Panel M
SM10
Fuse 10 on Fuse Panel M
T20e
20-Pin Connector, Brown
T28a
28-Pin Connector, Black
T54a
54-Pin Connector, Black
386
Ground Connection 21 (in Main Wiring Harness)
730
Ground Connection 1 on Right Rear Wheel Housing
B470
Connection 6 (in Main Wiring Harness)
B670
CAN Bus Extended High Connection 3 (in Main Wiring Harness)
B671
CAN Bus Extended Low Connection 3 (in Main Wiring Harness)
B776
Hybrid CAN Bus High Connection 1 (in Main Wiring Harness)
B777
Hybrid CAN Bus Low Connection 1 (in Main Wiring Harness)
*
Refer to Applicable Wiring Diagram for Fuse Positions
*2
Refer to Applicable High-Voltage System Wiring Diagram
*3
Turquoise Wire
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.