Captiva |
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• | 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 Window Switch Ignition | 1 | 1 | -- | -- |
Left Rear Window Switch Signal | 3 | 3 | 3 | -- |
Passenger Window Switch Signal | 2 | 2 | 2 | -- |
Right Rear Window Switch Signal | 4 | 4 | 4 | -- |
Lockout Switch Control | 2, 3, 4 | 2, 3, 4 | 2, 3, 4 | -- |
Driver Window Motor Control | 1 | 1 | 1 | -- |
Left Rear Window Motor Control | 3 | 3 | 3 | -- |
Passenger Window Motor Control | 2 | 2 | 2 | -- |
Right Rear Window Motor Control | 4 | 4 | 4 | -- |
Driver Window Switch Ground | -- | 1, 2, 3, 4 | -- | -- |
1. Driver Power Window Malfunction 2. Passenger Window Malfunction 3. Left Rear Power Window Malfunction 4. Right Rear Power Window Malfunction |
The driver power window switch contains individual window switches for each of power windows. All windows may be controlled up and down from the driver power window switch. The individual passenger power window switches will only control the up and down operation of their respective power window.
Each power window contains a reversible power window motor. The direction the window travels is dependent upon the polarity of the supply voltage. By reversing polarity of the supply voltage the window motor will move up or down. Each power window motor is internally circuit breaker protected.
Battery voltage is supplied to the power window switch through the accessory voltage supply circuit. The power window switch also receives a constant ground source. The power window motor control circuits are connected to ground through the normally closed up and down contacts of the power window switch. When the power switch is placed in the down position, the power window motor down control circuit is switched to 12 volts and is applied to the down side of the power window motor. Since the other side of the power motor is connected to ground through the normally closed contacts of the up switch, the window travels down. By placing the power window switch in the up position, the polarity of the power window motor is reversed and the window travels up
Moveable Window Schematics : C145 → C140
Power Windows Description and Operation
⇒ | If the driver window does not perform the UP or DOWN function, refer to Driver Window Malfunction. |
⇒ | If the passenger or a rear window does not perform as specified, refer to Passenger/Rear Window Malfunction. |
⇒ | If the S79LR window switch-left rear and S79RR window switch-right rear continue to function while disabled, refer to Lockout Switch Malfunction. |
• | Ground terminal P (left hand drive) |
• | Ground terminal L (right hand drive) |
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
• | Ignition terminal K (left hand drive) |
• | Ignition terminal R (right hand drive) |
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
⇒ | If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If the test lamp is always OFF during either of the commands, test either control circuit for a short to ground. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. |
Note: Verify the windows are enabled by checking the window lockout switch on the S79D window switch-driver.
⇒ | If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If greater than the specified range, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If the test lamp does not illuminate during either of the commands, test either signal circuit for a short to ground. If the circuits test normal, test or replace the S79D window switch-driver. |
⇒ | If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79 window switch. |
⇒ | If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the S79 window switch. |
⇒ | If the test lamp does not illuminate during either of the commands, test either control circuit for a short to ground. If the circuits test normal, test or replace the S79 window switch. |
⇒ | If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, test or replace the S79D window switch-driver. |
⇒ | If less than the specified value, replace the S79 window switch. |
⇒ | If greater than the specified range, replace the S79 window switch. |
⇒ | If greater than the specified range, replace the S79 window switch. |
⇒ | If it does not perform as specified, replace the M74 window motor. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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