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Old 01-21-2009, 01:26 PM   #1 (permalink)
DieselLuvr
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Courtesy light troubleshooting help

Hello

I have searched the forums with no real results for this issue.

I have a 1998 GMC K2500 The courtesy lights are staying on all the time.

I have replaced the following:
Headlight switch
left and right door switches
chime module

When I replace the fuse I hear a relay clicking under the dash. Can anyone tell me what/where this relay is.

During google searches it appears this truck does not use a BCM but rather a time delay relay. Where is it located?

Any help troubleshooting this is appreciated.
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98 GMC Sierra K2500 S&S Intake and PMD relocation, Heath Turbomaster
2000 Chevy Express Van 3500, 6.5 TD rear turbo, S&SD PMD relocation
2003 Jetta TDI, stock
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Old 01-21-2009, 02:14 PM   #2 (permalink)
dieselolds
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What happens when you press the dome over-ride switch?
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Old 01-21-2009, 05:23 PM   #3 (permalink)
RustyCanuck
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Hate to ask, but have you left the lights on by way of the dash dimmer control? Double check the door switches.
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Old 01-22-2009, 08:59 AM   #4 (permalink)
DieselLuvr
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Nothing happens when I hit the override.

I have tested every possible configuration. I think the problem lies in the time delay device, but I cannot locate it. according to some parts sites they have a listing for a time delay relay which shares the same part number as the headlight relay, but going through the relay box under the hood and the one under the dash. I can't find anything that controls headlights or the courtesy lights.
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98 GMC Sierra K2500, 6.5 TD S&SD PMD relocation, AFE intake, S&S 4 inch exhaust, Heath turbo-master S&S 80HP chip, Bilstein shocks, Fenderectomy, Bully Dog Boost guauge
98 GMC Sierra K2500 S&S Intake and PMD relocation, Heath Turbomaster
2000 Chevy Express Van 3500, 6.5 TD rear turbo, S&SD PMD relocation
2003 Jetta TDI, stock
2005 Passat TDI stock (wife's car)
1994 Isuzu NPR flatbed
1988 International s-1900 dt-466
1991 Ford (New Holland)1220 tractor for the grass
in progress: 1990 Chevy 1500 w/ Isuzu 4BD2-TC diesel
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Old 01-22-2009, 09:45 AM   #5 (permalink)
HamOP
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The only schematic that I have for your truck shows an *Interior Lamp Control Module*... It doesn't say where it's located, but should be a box (?) with 5 wires going to it.
Gry, Org, Wht, Pnk, Blk.

The *Remote Control Door Lock Receiver* could also be suspect, if you have one ---- 4 wires to it.
Blk, Wht, Gry, Pnk.
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