• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Left Rear Power Window Lockout Signal | B3821 00 | 1 | 1 | -- |
Left Rear Power Window Lockout Signal | B3824 00 | 1 | 1 | -- |
1. Power Window Lockout Function Inoperative |
Accessory/RAP voltage is supplied to the left rear power window switch through the window lockout signal circuit. If the window lockout function is disabled, the body control module (BCM) supplies voltage to the rear window switches allowing for normal window operation from the rear switches. If the window lockout function is enabled, the BCM will not supply voltage to the rear window switches and the rear windows will only operate from the driver power window switch through the BCM up and down signal circuits.
Window Systems Connector End Views
⇒ | If the switch parameter is incorrect, replace the DDS. |
⇒ | If the enable command parameters are incorrect, replace the BCM. |
⇒ | If the test lamp illuminates, test the lockout signal circuit for a short to voltage. If the circuit tests normal replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for DDS or BCM replacement, programming, and setup |