How-To Remove "auto" headlamps?
#11
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I think that you are too paranoid . . . at least about your HID headlamps! I am an electrical engineer for a general aviation aircraft manufacturer. I've mostly been in avionics my whole career (30+ years), but I've done a lot of stuff on the power generation and distribution side too. On/Off cycles can affect bulb life somewhat, especially incandescent bulbs, but only a little. It's mainly the expansion/contraction cycling on the tungsten filament.
But I would'nt worry about the ambient light sensor operation on your HID or any other kind of liights at all. Most all OEM systems that are HID (GM/Ford/Chrysler/German/Asian Manufacturers) have ambient light sensors and I'm sure that they don't measurably shorten lamp life. Just my 2 cents.
Steve
But I would'nt worry about the ambient light sensor operation on your HID or any other kind of liights at all. Most all OEM systems that are HID (GM/Ford/Chrysler/German/Asian Manufacturers) have ambient light sensors and I'm sure that they don't measurably shorten lamp life. Just my 2 cents.
Steve
#12
Update: no issues with auto AC
I soldered a diode across the "Low Reference" and "Light Sensor" leads entering the BCM (under the dash). The auto AC seems to still operate normally.
In addition to dissabling the "auto headlights", I did a few other mods.
- Soldered a diode across from the "Headlight Signal" (switch signal) to the "Headlight Relay" (output to relay). This keeps the Lows on when the Highs are on.
- Soldered a diode across from the "Headlight Signal" (switch signal) to the "Fog Relay" (output to relay). This turns the Fogs on when the headlights are on (Fogs can still be turned on independent of headlights by pushing Fog light switch).
Keeping both the Lows and Fogs on while being able to run Highs adds considerable light to the road! I have done this on both my Camaro and Silverado, and neither have ever had any issues from doing so.
Happy Days
I soldered a diode across the "Low Reference" and "Light Sensor" leads entering the BCM (under the dash). The auto AC seems to still operate normally.
In addition to dissabling the "auto headlights", I did a few other mods.
- Soldered a diode across from the "Headlight Signal" (switch signal) to the "Headlight Relay" (output to relay). This keeps the Lows on when the Highs are on.
- Soldered a diode across from the "Headlight Signal" (switch signal) to the "Fog Relay" (output to relay). This turns the Fogs on when the headlights are on (Fogs can still be turned on independent of headlights by pushing Fog light switch).
Keeping both the Lows and Fogs on while being able to run Highs adds considerable light to the road! I have done this on both my Camaro and Silverado, and neither have ever had any issues from doing so.
Happy Days
Last edited by 2001CamaroGuy; 08-10-2009 at 10:52 PM.
#14
There are 5 (total) connectors on the BCM, 3 large, 2 small. They are #s 1-5 from left to right (C1, C2, C3, C4, C5....Driver's to Passenger's).
- Headlamp Switch Signal (from switch) = White, Pin A12, connector C4
- Low Beam Relay Control (output to relay) = Pink/White, Pin A4, connector C2
- Fog Lamp Relay Control (output to relay) = Dark Green/White, Pin A5, connector C2
- Ambient Light Sensor (signal in from sensor) = White, Pin A4, connector C3
- Low Reference (for ambient sensor) = Black, Pin B7, connector C4
Attached is the schematic I edited to show where diodes are placed.
Note: This is for 2004 models. I'm not sure what other years are the same.
- Headlamp Switch Signal (from switch) = White, Pin A12, connector C4
- Low Beam Relay Control (output to relay) = Pink/White, Pin A4, connector C2
- Fog Lamp Relay Control (output to relay) = Dark Green/White, Pin A5, connector C2
- Ambient Light Sensor (signal in from sensor) = White, Pin A4, connector C3
- Low Reference (for ambient sensor) = Black, Pin B7, connector C4
Attached is the schematic I edited to show where diodes are placed.
Note: This is for 2004 models. I'm not sure what other years are the same.
Last edited by 2001CamaroGuy; 08-11-2009 at 12:37 AM.
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