Indicator Test
WARNING: This page is about a different car, the 2003 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
Connect fused jumper wire between center integration panel assembly terminals B1 and B3. See Fig 1. Using jumper wires, apply battery voltage to center integration panel assembly terminal A13 and ground to terminal A1. Indicator should illuminate. If indicator does not illuminate, replace indicator.