• | 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 |
---|---|---|---|---|
Driver Door Switch B+ | 1, 3 | 1 | -- | -- |
LR Window Switch B+ | 1, 3 | 3 | -- | -- |
Passenger Door Switch B+ | 2, 4 | 2 | -- | -- |
RR Window Switch B+ | 2, 4 | 4 | -- | -- |
Power Window Switch Right Rear Down Signal | B3823 | B3823 | B3823 | -- |
Power Window Switch Right Rear Up Signal | B3822 | B3822 | B3822 | -- |
Power Window Switch Left Rear Down Signal | B3820 | B3820 | B3820 | -- |
Power Window Switch Left Rear Up Signal | B3819 | B3819 | B3819 | -- |
Power Window Lockout Left Rear Control | B3821 | B3821 | B3821 | -- |
Power Window Lockout Right Rear Control | B3824 | B3824 | B3824 | -- |
LR Window Motor Control | 3 | 3 | 3 | -- |
Passenger Window Motor Control | 2 | 2 | 2 | -- |
RR Window Motor Control | 4 | 4 | 4 | -- |
Driver Window Motor Control | 1 | 1 | 1 | -- |
Driver Door Switch Ground | -- | 1,3,4 | 1,3,4 | -- |
LR Window Switch Ground | -- | 3 | 3 | -- |
Passenger Door Switch Ground | -- | 2 | 2 | -- |
RR Window Switch Ground | -- | 4 | 4 | -- |
1. Driver Window Malfunction 2. Passenger Window Malfunction 3. Left Rear Window Malfunction 4. Right Rear Window Malfunction |
The rear passenger power windows can also be operated from the DDS through a serial data message to the BCM. The rear passenger window switches on the DDS have 2 positions, up and down, their position is a direct input into the DDS. When the BCM receives a command to operate a rear window up or down the appropriate signal circuit to the rear door window switch.
Battery voltage is between 9-16 volts.
The BCM detects a fault in the left rear window up circuit.
The BCM detects a fault in the left rear window down circuit.
The BCM detects a fault in the right rear window up circuit.
The BCM detects a fault in the right rear window down circuit.
The left or right rear power window will be inoperative from the driver master control.
• | The DTC will be current for as long as the fault is present. |
• | When the fault is no longer present, the DTC will be a history DTC. |
• | A history DTC will clear after 50 ignition cycles. |
Power Windows Description and Operation
Control Module References for scan tool information
Command the appropriate rear door window UP and DOWN with a scan tool. The rear door window should perform the UP and DOWN function.
⇒ | If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup and programming |