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.
Comfort System Central Control Module, Near Field Communication Control Module
G605
Left Front Exterior Door Handle Touch Sensor
G606
Right Front Exterior Door Handle Touch Sensor
J393
Comfort System Central Control Module
J1169
Near Field Communication Control Module
R350
Near Field Communication Antenna
T4gc
4-Pin Connector, White
T4gn
4-Pin Connector, Black
T20d
20-Pin Connector, Black
T21b
21-Pin Connector, Black
T21bx
21-Pin Connector, Black
TTVL
Left Front Door Coupling Point
639
Ground Connection on Left A-Pillar
1325
Ground Connection (in Left Front Door Wiring Harness)
1326
Ground Connection 2 (in Left Front Door Wiring Harness)
1340
Ground Connection 42 (in Main Wiring Harness)
*
For RHD Vehicles
*2
For LHD Vehicles
*3
Pre-Wired Component
*4
Omitted as a Running Change
*5
Running Change
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.