Illumination for Panel Switch does not Come on with Tail Switch ON: Procedure

CHECK VEHICLE SIGNAL (OPERATION CHECK)

Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check. Refer to OPERATION CHECK .

Fig 1: Identifying Vehicle Signal Check Mode Screen Display
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check that the display changes between ON and OFF according to the light control switch operation.

Light Control Switch	Display
Tail or head	ON
Off	OFF

HINT:

This display is updated once per second. As a result, it is normal for the display to lag behind the actual switch operation.

NG → See step 3

OK → See step 2

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to REMOVAL
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE