DTC B1140: Driver's Power Window Position Detect Circuit Malfunction
NOTE:
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Make sure you reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ) whenever you replace or substitute any power window parts.
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
- Open and close the driver's power window by using the driver's switch manually.
- Check for DTCs with the HDS.
Is DTC B1125 or B1126 indicated?
YES - Troubleshoot DTC B1125 or B1126 (see DTC B1125: DRIVER'S POWER WINDOW MOTOR A PULSE MALFUNCTION; DTC B1126: DRIVER'S POWER WINDOW MOTOR B PULSE MALFUNCTION ).
NO - Go to step 5.
- Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
- Check for DTCs again with the HDS.
Is DTC B1140 indicated?
YES - Go to step 7.
NO - The system is OK at this time. Check for loose or poor connectors.
- Substitute a known-good power window master switch.
- Open and close the driver's power window by using the driver's switch manually.
- Check for DTCs with the HDS.
Is DTC B1140 indicated?
YES - Faulty the driver's power window motor; replace the driver's door regulator (see FRONT DOOR GLASS AND REGULATOR REPLACEMENT ).
NO - Faulty door multiplex control unit; replace the power window master switch (see POWER WINDOW MASTER SWITCH REPLACEMENT ).