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Power locks and aftermarket LCD flip down viewer


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jomps5
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Jul 17, 2012, 9:14 PM

Post #1 of 5 (489 views)
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Power locks and aftermarket LCD flip down viewer Sign In

I have a 1999 Chevy suburban 1500 with 146000 miles. We had an aftermarket DVD player and separate tview drop down viewer installed 8 yrs ago. The DVD player power plug (car lighter adapter) needed to be replaced. The viewer never had an issue still had power. Started replacing the power source for DVD player it works fine but now my viewer and power locks will not work. The viewer also has dome lights and they are working. Have checked all the fuses I can think of and see nothing so far. Locks do work with the door remote


Discretesignals
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Jul 17, 2012, 9:21 PM

Post #2 of 5 (484 views)
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Re: Power locks and aftermarket LCD flip down viewer [In reply to] Sign In

Did you check the CIG LTR fuse 13 20 amp in the instrument panel fuse block? You may have missed one.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


jomps5
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Jul 17, 2012, 9:38 PM

Post #3 of 5 (462 views)
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Re: Power locks and aftermarket LCD flip down viewer [In reply to] Sign In

Yes. It was blown so I replaced it but it did not correct the other issues and I think that the cig lighter has been out for a while. Since we have the other two power ports I never bothered to change the fuse


Discretesignals
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Jul 17, 2012, 10:03 PM

Post #4 of 5 (452 views)
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Re: Power locks and aftermarket LCD flip down viewer [In reply to] Sign In

That's strange. That fuse protects the circuit that feeds power through the door lock switches to either the door lock control module or BCM; depending if you have the luxury model or not. Since the keyless entry is able to control the door locks, that could mean you have a switch input problem.

Someone is going to have to get the correct wiring schematic for that vehicle and track down what is going on with the door lock circuit. I wouldn't doubt if your viewer is tied into the door lock circuit somewhere.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jul 17, 2012, 10:04 PM)


jomps5
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Jul 18, 2012, 4:49 AM

Post #5 of 5 (424 views)
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Re: Power locks and aftermarket LCD flip down viewer [In reply to] Sign In

The only other possibilty was maybe that it is tied into an old viper automatic starter system that was installed by best buy - terrible - in 2002. It has been disconnected from the battery for years but I have never removed the entire system from the truck. Could that be something worth investigating? We do not have the luxury model suburban.




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