I changed my used sierra's battery and when I got power, my factory stereo locked up. The original owner can't remember the security code. Is there anyway to reset it without taking it to a GM mechanic?
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i cannot understand how you radio would work. These radios are coded throught data link to computer. the only way to get the stereo to work is to run a calibration program through the vehicle. then it should accept your new cd player. if the stereo's are the same then may I suggest you to take the radios appart and switch the parts that don't work like CD drive assembly and faceplate.but use your factory installed stereo as the main core, this should fix your isses and work fine since the calibration is for the origional factory stereo.
Make and Model: Chevrolet Suburban, GMC Yukon XL, Chevrolet Silverado, GMC Trucks Sierra Years: 2000-01, 1999-00
Turn the ignition key to the RUN position.
Fully push and release the accelerator pedal 3 times within 5
seconds. If the
CHANGE OIL SOON light flashes 2 times, the system is reset.
However, if the
light comes on and stays on for 5 seconds, the system did not
reset. Repeat the
procedure if the system does not reset.
Hope this help (remember rated and comment this help) Good luck.
your heat/cool and vent selection options are controlled by engine vacuum through small clear tubes attached to the rear of your climate control interface. Other vehicles have small steel pull wires that operate the desired changes. You might try removing the trim and any fasteners affiliated with the interface/console. GENTLY pull outward and look to see if any of these tubes are pulled off or cut/damaged. Did anyone recently install a new stereo in the vehicle? If so, the vacuum tubing and or pull wires that change your outlets could have been damaged when the stereo unit was pushed into place. Hope this helps
Here ya go. enjoy! 2002 GMC Sierra C1500 Car Radio Wire Color Codes
Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black/White Car Radio Illumination Wire: Brown Car Stereo Dimmer Wire: Gray Car Stereo Antenna Trigger Wire: N/A Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: Under the center console. Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
There is no remote wire on these newer trucks....03 and up....u have to buy the harness....although i didnt....i have an 03 gmc sierra and just pulled the schematic and matched the wires. And there is no programming to do on an aftermarket stereo.....I work for GMC and we cant program aftermarket stereos......if u buy the right harness ...and its over $100 then everything should work just fine.....and this does not disarm ur alarm system either....mine still works fine....hope this helps
Yes u do....I have an 03 sierra and apparently they changed everything in 03.....the harness is over $100.....but u need it....and they dont sell a reg wiring kit from 03 and up....if it was an 02, then yes u could get away cheap......it has to do with the steering wheel switches