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In changing what I thought was a burnt out trunk bulb ends up possibly being a blown fuse as the bulb is fine. Can someone tell me what fuse is associated with the trunk light, not in the manual? I checked the interior light fuse #31 and it is good.
Last edited by P-J; 02-23-2022 at 05:26 PM.
Reason: spelling error
I found this on the forums not sure if this applies to a 2006 The dome light and cargo light are common to fuse 9 in the under hood accessory block. In automatic mode, the ground to cause them to light is supplied by the BCM ( Body Control Module ) on pin 18 of connector 4. The BCM is reading all the door and lift gate / trunk switches ( via the CLP - Central Locking Pump ) in order to determine if the lights should be on or off, so I would suspect one of those 3 would be the culprit. Hope this helps
I found this on the forums not sure if this applies to a 2006 The dome light and cargo light are common to fuse 9 in the under hood accessory block. In automatic mode, the ground to cause them to light is supplied by the BCM ( Body Control Module ) on pin 18 of connector 4. The BCM is reading all the door and lift gate / trunk switches ( via the CLP - Central Locking Pump ) in order to determine if the lights should be on or off, so I would suspect one of those 3 would be the culprit. Hope this helps
Unfortunately every time they built a car the fuses were moved around. Hopefully the OP still has the card inside the under hood accessory block and he can try what you suggested.
Thanks guys, much appreciated...raining and 38 degrees here today, I will check it tomorrow and let you know if this fuse is the culprit.
Have you checked both trunk lamp terminals to ground, to see IF there is 12v (nominal) on a voltmeter? With one door open, normally, you should get system voltage on one of them terminals. If not, an open circuit or fuse is suspect. Does your dome light come on when the door opens? If so, then you should have that 12v (nominal) at one of the two terminals (to a good ground point). I would not use the other terminal for the ground because it could be 'open'. Good luck!
Ok, the old man needs to get his eyes checked. Per dcskmail, I checked fuse #9 and it was not only blown but it is in plain view on the fuse card. I did check both bulb terminals and nothing, no interior light either. I replaced the 10A fuse and all is good. Here is a photo of the fuse chart for anyone who may need it.
Did you check the presence of voltage across the lamp contacts? This will indicate if your fuse is blown even if you do not know its location. Also, check to see if lamp holder wire connections are good. You might also want to check the switch that turns on the light.
Have you ever considered installing a second lamp? I did and it improves visibility considerably.
Trunk light fuse
Have you checked both trunk lamp terminals to ground, to see IF there is 12v (nominal) on a voltmeter? With one door open, normally, you should get system voltage on one of them terminals. If not, an open circuit or fuse is suspect. Does your dome light come on when the door opens? If so, then you should have that 12v (nominal) at one of the two terminals (to a good ground point). I would not use the other terminal for the ground because it could be 'open'. Good luck! 
