FixVault

Check Room Light Operation

WARNING: This page is about a different car, the 2005 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.
ROOM LIGHT OPERATION

Step Check Yes No
1 CHECK ROOM LIGHT OPERATION. 
Make sure the room light illuminates when the room light switch is turned ON.
Does the room light illuminate? Go to step 2.  Check the room light circuit.
2 CHECK HARNESS BETWEEN ROOM LIGHT AND INTEGRATED MODULE. 
  1. Disconnect the integrated module harness connector and room light harness connector.
  2. Measure the resistance between the integrated module harness connector terminal and the room light harness connector terminal.

Connector & terminal 
(B281) No. 5 - (R52) No. 2: 
Is the measured value less than 10 Ω? The room light operation circuit is OK. Check the harness for open circuits and/or shorts between the integrated module and room light.