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Driver
 
Join Date: Jan 2004
Location: Gahanna, Ohio
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Underhood courtesy light

Hello All, Happy Thanksgiving.

My under hood courtesy light isn't working. I bought a replacement bulb but that doesn't seem to fix the problem. I am going to figure out some way to sand out some oxidation within the bulb socket to see if that is the problem but if not does anyone have any ideas?

The switch that turns it on/off based on hood position moves freely and the wires don't seem to be compromised at all.

I have a voltmeter/multimeter but frankly I don't know how to use it to test the bulb socket.

Any thoughts or a quick "how to" with the voltmeter?

Thanks in advance!

GHEN

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'87 944
Old 11-28-2019, 05:54 AM
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curtisr
 
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Try putting the right blinker on when checking it.
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1977 924 Guards Red (parted and sold)
1987 924s Alpine White (sold)
1987 924s Kopenhagen Blue (my Lowencash tribute track car)
1987 924s Garnet Red
1982 928 Silver (sold)

Last edited by curtisr; 11-28-2019 at 06:11 AM..
Old 11-28-2019, 06:01 AM
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Driver
 
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Quote:
Originally Posted by curtisr View Post
Do you have the right blinker on when checking it?
I don't...should I?

GHEN
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Old 11-28-2019, 06:04 AM
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Patrick
 
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Actually Ghen, it's very easy.
1. Simply remove the bulb
2. Set your Volt/Ohm meter to DC volts (20vdc or thereabouts)
3. Turn your car's light switch on (parking works)
4. Place the red meter lead on the center contact in the light socket (Positive/Hot)
5. Place the black lead on the socket's side (Negative/Ground)
6. Read the results - You should see a value of 11.5 - 13.0vdc; any reading will prove that there is continuity.

Note: Try not to touch the leads together; you'll end up blowing a fuse/relay. Good luck!
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1984 944 NA, constant tinkering
Old 11-28-2019, 06:09 AM
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curtisr
 
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Quote:
Originally Posted by GHEN View Post
I don't...should I?

GHEN
I believe that to be the case.
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1977 924 Guards Red (parted and sold)
1987 924s Alpine White (sold)
1987 924s Kopenhagen Blue (my Lowencash tribute track car)
1987 924s Garnet Red
1982 928 Silver (sold)
Old 11-28-2019, 06:12 AM
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9FF 9FF is online now
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There’s some good info in this thread: Under Hood Light not working
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Mike A
9TECHNIK | TRANSAXLE ÄRA
1986 944 (Street); 1986 944 (Track); 1986 951; 1989 951 (3.0L 8V); 2000 996 Cab.

Last edited by 9FF; 11-28-2019 at 06:21 AM..
Old 11-28-2019, 06:19 AM
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Driver
 
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Quote:
Originally Posted by 9FF View Post
There’s some good info in this thread: Under Hood Light not working
Thanks Mike!

GHEN
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Old 11-28-2019, 06:24 AM
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Driver
 
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Quote:
Originally Posted by pfarah View Post
Actually Ghen, it's very easy.
1. Simply remove the bulb
2. Set your Volt/Ohm meter to DC volts (20vdc or thereabouts)
3. Turn your car's light switch on (parking works)
4. Place the red meter lead on the center contact in the light socket (Positive/Hot)
5. Place the black lead on the socket's side (Negative/Ground)
6. Read the results - You should see a value of 11.5 - 13.0vdc; any reading will prove that there is continuity.

Note: Try not to touch the leads together; you'll end up blowing a fuse/relay. Good luck!
Thanks, I'm going to try this now!

GHEN
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'87 944
Old 11-28-2019, 06:31 AM
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In the Fires of Hell.....
 
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The light only works when the turn signal is on (I thought it was "left", but not sure).

Give Curtisr some props for that one
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1987 924S 944 SPEC racecar - '88 pistons/DME, short 5th
1987 944S - Restored salvage title, ready to live again
I can fix your late 944 Cruise Control module - PM for details
Old 11-28-2019, 06:52 AM
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Driver
 
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Quote:
Originally Posted by curtisr View Post
Try putting the right blinker on when checking it.
Quote:
Originally Posted by kdjones2000 View Post
Give Curtisr some props for that one
Props!

GHEN
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'87 944
Old 11-28-2019, 07:09 AM
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Driver
 
Join Date: Jan 2004
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Quote:
Originally Posted by pfarah View Post
Actually Ghen, it's very easy.
1. Simply remove the bulb
2. Set your Volt/Ohm meter to DC volts (20vdc or thereabouts)
3. Turn your car's light switch on (parking works)
4. Place the red meter lead on the center contact in the light socket (Positive/Hot)
5. Place the black lead on the socket's side (Negative/Ground)
6. Read the results - You should see a value of 11.5 - 13.0vdc; any reading will prove that there is continuity.

Note: Try not to touch the leads together; you'll end up blowing a fuse/relay. Good luck!
Patrick,

PM sent.

Thanks,

GHEN
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'87 944
Old 11-28-2019, 07:10 AM
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Patrick
 
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Responded...
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1984 944 NA, constant tinkering
Old 11-28-2019, 07:34 PM
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curtisr
 
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It should also work when the parking lights are on. Batteries are out of the cars at the moment so I'm relying on my unreliable memory. Sorry, I hate guessing...

__________________
1977 924 Guards Red (parted and sold)
1987 924s Alpine White (sold)
1987 924s Kopenhagen Blue (my Lowencash tribute track car)
1987 924s Garnet Red
1982 928 Silver (sold)
Old 11-29-2019, 06:00 AM
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