Rosa Gonzales Posted on Mar 13, 2016

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Sunroof won't close automatically. - 2004 Cadillac CTS

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Jeff Armer

Cadillac Master 15,575 Answers
Posted on Mar 13, 2016

Jeff Armer

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Joined: Nov 22, 2012

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Do you know how to test electrical circuits , check for DTC'S - diagnostic trouble codes ? You'll need to take the headliner out to get at the motor , take the control switch out an test for voltage into an out of the switch , test at motor . Do the power windows work ?
Power Sunroof System Components
The power sunroof system consists of the following components:
?€¢
Sunroof module

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Sunroof switch

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Sunroof motor, with 2 hall effect sensors and limit switch

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Sunroof window

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Sunroof sunshade panel

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Power supply for the sunroof module: RAP 25 A

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Ground G402

There is a fuse box under the back seat , right side . Check SUNROOF MOD . fuse an RAP RELAY

richie46

Cadillac Master 12,962 Answers
Posted on Mar 13, 2016

richie46

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Is the motor receiving power? If not you have to check electrical system to locate the place that is not transmitting power. Could be a fuse/relay, switch, bad connection.

If the motor is turning and nothing happens then the drive mechanism from motor to sunroof is stripped. Not good.

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