flasher module wiring diagram.... - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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  #1  
Old 04-05-2010, 08:52 PM
gearhed42 gearhed42 is offline
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2002 Chevy TrailBlazer LS
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flasher module wiring diagram....

Wondering if anyone has a pinout or wiring schematic for the flasher module. Long story short im trying to tap into the output wire to the parking lights/flasher lights/directionals or what ever you wish to call them. Reason being is i would like my remote start system to pulse these lights instead of the headlight coming on because when you have it tapped into the headlight switch the parking lights will flash during day but at night the headlights do instead and i do not want to fry my hids Thanks!
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  #2  
Old 04-05-2010, 10:12 PM
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Pin
A Lt GN Right turn signal switch input
B WH Stop lamp switch input
C YE Left rear stop/turn lamp output (to trailer connector)
D D-GN Right rear stop/turn lamp output (to trailer connector)
E BK Gnd
F D-GN Left turn signal switch input
G WH Hazard flasher switch input
H YE Left turn signal flasher output (to vehicle lamp)
J TN Right turn signal flasher output (to vehicle lamp)
K OG Battery voltage input
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  #3  
Old 04-06-2010, 02:58 AM
gearhed42 gearhed42 is offline
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Awesome thank you for the quick reply! However im not sure i can pull this off going this way it seems. Maybe if i tapped into multiple wires down there i could get the desired result but i have no idea.... any ideas or suggestions?
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Old 04-06-2010, 10:23 AM
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the roadie the roadie is offline
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Only you know what you want to do, but I know that tapping into multiple wires will end up shorting those wires together. Don't do it without expert advice or you could end up turning your turn signals into hazard flashers.

If you want to pulse the running lights, those are separate filaments/lamps from the turn signals, and their wiring doesn't come anywhere near the flasher module.

Also confusingly enough, the headlight power wiring doesn't go anywhere near the headlight switch as on most vehicles. All that's on the switch is a control signal to the BCM, which is ultimately in charge of turning on the relay that powers the headlights.

I'm going to move this to Audio & Electronics to get you some more expert advice for remote start issues.
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Old 04-06-2010, 05:03 PM
gearhed42 gearhed42 is offline
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2002 Chevy TrailBlazer LS
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yea that is a good point. was real late when i posted that anyways the problem could be solved if i could locate the output wire from the bcm then... i didnt realize how the system was tied together. Do you happen to have a pinout of the bcm as well? lol
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  #6  
Old 04-06-2010, 10:02 PM
gearhed42 gearhed42 is offline
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Im almost thinking i should just disconnect it? The only thing is i wanna have some way to have like confirmation when i lock or unlock so that if i hit the button from far away i know whether or not it worked.... open to any suggestions guys please....
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Old 04-07-2010, 01:38 AM
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The BCM output runs through a relay in the rear fuse block on its way to the running lamps. Just read the fuse chart in the owner's manual and tap into the proper fuse. Or get a small electronic beeper to connect to the remote start output.
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