DTC Troubleshooting: B1140

DTC B1140: Driver's Power Window Position Detect Circuit Error Clear the DTCs using the HDS. Cycle the ignition switch to OFF, and then back ON (II). Open and close the driver's power window by using the driver's switch manually. Check the DTCs by selecting the DTCs MENU (DTCs) from the HDS. Is DTC B1125 or B1126 indicated?
YES | - | Troubleshoot the DTC B1125 or B1126. ■
NO | - | Go to Step 5 .
Do the resetting the power window control unit procedure. Check the DTCs again. Is DTC B1140 indicated?
YES | - | Faulty door multiplex control unit; replace the power window master switch.■
NO | - | The system is recovered at this time.■