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
).
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Open and close the driver's power window by using the driver's switch manually.
- Check for DTCs with the HDS.
Are DTCs B1125 and B1126 also indicated?
YES -Troubleshoot the DTC B1125 or B1126. ■
NO -Go to step 5.
- Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT ).
- Clear the DTCs with the HDS.
Is DTC B1140 indicated?
YES -Go to step 7.
NO -The system has recovered at this time. ■
- 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 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 ). ■