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.
Switch Module In Instrument Panel, Center, Center Console Switch Module 1, Driver Assistance Systems Control Module
EX22
Switch Module in Instrument Panel, Center
EX23
Center Console Switch Module 1
E230
Rear Window Defogger Button
E266
Parking Aid Button
E581
Parallel Parking Assistance Button
E863
Auxiliary Coolant Heater Button
J1121
Driver Assistance Systems Control Module
K136
Parking Aid Indicator Lamp
K241
Parallel Parking Assistance Indicator Lamp
T5az
5-Pin Connector, Black
T17a
17-Pin Connector, White
T17ax
17-Pin Connector, White
T17e
17-Pin Connector, Black
T17ex
17-Pin Connector, Black
T81a
81-Pin Connector, Black
TALU
Coupling Point on Left A-Pillar, Bottom
TCPM
Coupling Point on Instrument Panel, Center
1203
Ground Connection (in Center Console Wiring Harness)
K12
LIN Bus Connection (in Center Console Wiring Harness)
K14
Connection (30) (in Center Console Wiring Harness)
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.