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.
Circuit Description: Notes
Each terminal sends the following information to the Driver Door ECU.
| Terminal name | Switch name |
| ML, MUL | Door lock manual switch |
| AUTO, MUP, MDN | Driver door power window switch |
| WLSW | Window lock switch |
| DT1.DT2, DT3, SC1.SC2, SC3 | Passenger, rear LH and RH door power window switch |
WLSW:
Pressing the window lock switch of the master switch sends a signal to the ECU. This cuts the electricity to switches of the passenger, rear LH and RH door power windows, which forbids the power window control system operation with these switches.
DT1, DT2, DT3, SC1, SC2, SC3:
The Driver Door ECU distinguishes UP, DOWN and AUTO positions of the power window in the passenger and rear LH and RH door according to the combination matrix of terminals.
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.