Circuit/System Testing

Power Window Lockout Function Inoperative

1. Install a scan tool and display the Driver Door Switch Inputs data list.
2. Ignition on, verify that the window lockout switch parameter displays On only while the lockout switch is pressed.
   • If the switch parameter is incorrect, replace the DDS.
3. Display the Body Control Module Doors data list.
4. Verify that the LR and RR Window Enable Command parameters change form On to Off when the lockout function is activated.
   • If the enable command parameters are incorrect, replace the BCM.
5. Disconnect the affected rear door power window switch connector, and activate the rear window lockout function.
6. Verify that a test lamp does not illuminate when connected from the lockout signal circuit terminal to ground.
   • If the test lamp illuminates, test the lockout signal circuit for a short to voltage. If the circuit tests normal replace the BCM.
7. If the circuits test normal replace the affected rear door power window switch.