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dashlights out when headlights are on


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josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: December 31, 2009 at 10:30 AM / IP Logged  
this is my first post.
recently installed a new kenwood HU in my 2000 4runner. i used the appropriate wiring harness but still had to splice wires from harness to harness. *everything works great except the dash lights go off when i turn the headlights on. the dash light is on when i run the daytime head lights.
ALL other lights work.
NO fuses are blown.
YES the dimmer knob is turned on for the dash dimmers.
i connected the illumination to ignition power and the dimmer wire from the 4runner is terminated. am i wrong with these connections? or is it a possibility that the dash light is blown? i assume its a different light and connection when switching the headlights on. possibly a blown dimmer relay?
i cannot find any answers for this on any previous forums.
thanks fellas!
j.reed 
Copper - Posts: 716
Copper spacespace
Joined: January 05, 2009
Location: Arkansas, United States
Posted: December 31, 2009 at 1:05 PM / IP Logged  
Constant 12V+     Blue / YELLOW or Blue/Black
Switched 12V+     Gray
Ground     Brown
Illumination     Purple
Dimmer     n/a
Antenna Trigger     BLACK/ White
Antenna     Right Front
Front Speakers     6 1/2" Doors
Left Front (+)     Pink
Left Front (-)     Purple
Right Front (+)     Light Green
Right Front (-)     Blue
Rear Speakers     5 1/4" Rear Doors
Left Rear (+)     Black
Left Rear (-)     Yellow
Right Rear (+)     Red
Right Rear (-)     White
dashlights out when headlights are on -- posted image.
splaudio 
Copper - Posts: 237
Copper spacespace
Joined: January 22, 2006
Posted: December 31, 2009 at 1:12 PM / IP Logged  

dont tie the dimmer for the headunit to the ignition wire. you dont even have to hook that wire up i never do when doing installing them customers 9 out of 10 want the dash dim and headunit brite....

josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: December 31, 2009 at 3:20 PM / IP Logged  
thanks.
im thinking at this point something is switched. the dash lights should not come on when the daytime running lights are on and then go off when the headlights for nighttime come on.
could this be a ground issue?
josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: January 05, 2010 at 7:50 AM / IP Logged  
anyone else have any input before i give in and take it to a mechanic?
t&t tech 
Platinum - Posts: 2,584
Platinum spacespace
Joined: October 05, 2008
Location: Trinidad and Tobago
Posted: January 05, 2010 at 6:09 PM / IP Logged  

Mechanic? Oh dear! You should not do that! dashlights out when headlights are on -- posted image.

josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: January 10, 2010 at 9:00 AM / IP Logged  
anyone?
josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: January 20, 2010 at 1:17 PM / IP Logged  
problem solved.
dimmer needed to be hooked to the ground rather than the ignition power. similar posts suggest to terminate the dimmer wire which is incorrect for this situation.
incognyto 
Copper - Posts: 64
Copper spacespace
Joined: December 26, 2009
Location: British Columbia, Canada
Posted: January 24, 2010 at 1:37 AM / IP Logged  
ground out the dimmer wire?? damn! never woulda though of that... how'd you find the solution?? deck manual?
josephbland 
Member - Posts: 6
Member spacespace
Joined: December 31, 2009
Location: North Carolina, United States
Posted: January 24, 2010 at 11:01 AM / IP Logged  
i went to advance auto parts to get a few other things and i just asked the guy if he knew what my problem could be. i took him out to the truck and we took the HU out and he showed be that what i thought was the "illumination wire" was labeled as the "dimmer ground". this wire was color coded on the package as "illuminaiton"; inscribed on the wire was "dimmer ground". he hooked it to the black ground wire and boom, it worked.
i like that store.

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