Kia Cadenza YG: Rear Curtain System / Rear Curtain Unit Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Body Electrical System / Rear Curtain System / Rear Curtain Unit Repair procedures

Inspection
1.
AUTO UP/AUTO DOWN function
(1)
IGN ON, if you press the rear curtain switch, rear curtain motor operates the reverse direction of the before direction. (UP/DOWN)
(2)
After replacing battery, if you operates rear curtain switch, rear curtain is operated auto up.
(3)
If the switch input occurred during rear curtain auto up or auto down, rear curtain is operated to the reverse direction after making a pause.
(4)
AUTO function stop when detect an excess current.
2.
TIMER function
(1)
It can be possible to operate rear curtain for 30 sec after IGN OFF.
(2)
It can be possible to operate rear curtain operation by the end of motor operation although timer is finished during auto up/ down.
3.
FAIL SAFE function
If motor operation doesn''t stop more than 10 sec after starting, motor is stopped by inner relay auto OFF.

T1 : MAX 10 sec,
T2 : 30 sec.
4.
RETROGRESSION GEARING function
(1)
When, rear curtain motor IGN ON, rear curtain UP and shift lever "R" position, rear curtain motor linked with the signal makes auto down.
(2)
When the vehicle speed is above 20 km/h from 1) condition, rear curtain motor linked with the signal makes auto up. Only, the motor does not operate below 20 km/h.
(3)
When shift lever position will be changed from R to P from 1) condition, rear curtain motor linked with the signal makes auto up. Only, the case where the driver presses the knock-down switch is excepted.
(4)
To the case where the driver presses the down switch from rear curtain up condition motor does not do a retrogression gearing operation and the up return operation due to a vehicle speed. After that, when driver presses the switch and the motor becomes auto up, the retrogression gearing operation is possible again.

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad")
3.
Remove the rear curtain unit (A) after removing nuts (2EA) and connector.

Installation
1.
Install the rear curtain unit and connector.
   
Make sure the connector are connected in properly.
2.
Install the crash pad lower panel.
3.
Connect the negative (-) battery terminal.

    Inspection Connect the battery voltage and check the rear curtain motor rotation. If the motor does not operate properly, substitute with a known-good rear curtain motor and check for proper operation.

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the passenger compartment juction box cover. 3. Remove the crash pad side switch assembly (A) by pushing it through juction box cover hole.

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