interior lights
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Joined: Jul 2013
Posts: 52
Likes: 0
From: New Berlin NY
interior lights
93 corvette convertible
lights do not come on when opening the doors, i see in the manual it is controlled by a light sensor, that appear to be in the front center of the dash, door plungers seem to be working fine (not stuck) the lights do come on if you turn the switch by the headlight switch.
anyone have any experience with this ?
lights do not come on when opening the doors, i see in the manual it is controlled by a light sensor, that appear to be in the front center of the dash, door plungers seem to be working fine (not stuck) the lights do come on if you turn the switch by the headlight switch.
anyone have any experience with this ?
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 41
From: Baltimore, MD USA
Turn the ignition on and open a door. The door ajar indcator should come on.
If you place your finger over the ambient light sensor to simulate darkness, with a door open, do the courtesy lights come on?
You can also shine a light at the sensor and see if the dash cluster lights brighten.
They should dim if you block the sensor.
If that works, could be the courtesy lamp relay. The CCM grounds the relay to turn on the courtesy lights.
Service manual says to verify CCM codes 24 and 25 are not set.
Take a piece of wire and short pin A to pin G on the diagnostic connector above the drivers right knee. Pin A is the top far right and pin G is the bottom row far left.
Turn the ignition on and look at the speedometer LCD.
CCM is Module 1
ECM is Module 4.
The relay is located along the front edge of the passenger side of the dash. The relays are all the same so you can swap them around.
If you place your finger over the ambient light sensor to simulate darkness, with a door open, do the courtesy lights come on?
You can also shine a light at the sensor and see if the dash cluster lights brighten.
They should dim if you block the sensor.
If that works, could be the courtesy lamp relay. The CCM grounds the relay to turn on the courtesy lights.
Service manual says to verify CCM codes 24 and 25 are not set.
Take a piece of wire and short pin A to pin G on the diagnostic connector above the drivers right knee. Pin A is the top far right and pin G is the bottom row far left.
Turn the ignition on and look at the speedometer LCD.
CCM is Module 1
ECM is Module 4.
The relay is located along the front edge of the passenger side of the dash. The relays are all the same so you can swap them around.
Last edited by Hooked on Vettes; Sep 9, 2013 at 10:28 AM.
