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.
2010 Lexus IS 250C AutomaticFACTORY OEM SERVICE PROCEDURE
Power Window cannot be Operated by Wireless Operation: Procedure
- CHECK MANUAL UP / DOWN FUNCTION
- Check that the manual up and down function using the power window regulator master switch assembly and power window regulator switch assembly can operate all the power windows. Refer to OPERATION CHECK .
OK
Manual up and down function is normal.
NG → See step 5
OK: Go to next step
- Check that the manual up and down function using the power window regulator master switch assembly and power window regulator switch assembly can operate all the power windows. Refer to OPERATION CHECK .
- CHECK REMOTE UP / DOWN FUNCTION
- Check that the remote up and down function using the power window regulator master switch assembly operates the power windows. Refer to OPERATION CHECK .
OK
Remote up and down function is normal.
NG → See step 5
OK: Go to next step
- Check that the remote up and down function using the power window regulator master switch assembly operates the power windows. Refer to OPERATION CHECK .
- CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
- Check that the wireless transmitter can control all the doors to lock and unlock normally. Refer to OPERATION CHECK
.
OK
Transmitter operates normally
NG → See step 4
OK → See step 6
- Check that the wireless transmitter can control all the doors to lock and unlock normally. Refer to OPERATION CHECK
.
- GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to How to Proceed with Trouble Shooting). Refer to HOW TO PROCEED WITH TROUBLESHOOTING
- GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table). Refer to PROBLEM SYMPTOMS TABLE
- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY. Refer to REMOVAL
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.