Originally Posted by
Bill Bean
First of all, I have always appreciated the bright people that have contributed to this site. It really is a big help for people like me
Here is my issue, The trunk lights as well as the glove box lights don't work. I have replaced the bulbs and that is not the issue. The dome lights do work (and are switched on). Not sure if this matters, but I did disconnect the TPMS (by the garage door opener) Not sure if this is at all relevant I don't know if they worked before I disconnected it.
Thanks to any thoughts and help.
You cant fix this, without the diagrams in the service manual. Either YOU must get into them or one of us must in order to figure this out.
2004-2006:
1) Glove box lights are on an ignition switched source, same fuse feeds the cigar lighter. Not connected to the "interior lights" in any way.
2) The trunk and dome lights are referred to as the "interior lights" and they come on and off together and are wired to unswitched battery power. Trunk light is switched by the BCM same as the dome light, they are triggered by the door ajar or trunk latch switches.
3) A switch in the dome light allows interior lights to be manually turned on apart from the BCM/door switches. Trunk and dome lights are always on or off together, no matter if the dome switch is used or the door ajar switches trigger the BCM to turn them on.
2007-2008:
Same as above but the trunk light is triggered separately by only the trunk latch switch. Dome lights do not come on when trunk is opened and trunk light does not come on when doors are opened. 2007 service manual does not reflect this change because MB made changes and Chrysler did not keep up with the changes for some reason.
Diagram for 2004-2006, no accurate diagram exists for 07-08 that I have found:
