Toyota Camry Manual page 442

HOW TO USE DIAGNOSTIC CHART
Reference:
Radio
Check if RADIO fuse is OK?
Check if DOME fuse is OK?
Is ACC applied to radio?
Check if GND (Wire harness side) to
radio is OK?
Radio faulty
1 : Phenomenon
: Problem
BODY ELECTRICAL SYSTEM
NO POWER COMING IN
Yes
Yes
Yes
Yes
2 : Check item
– AUDIO SYSTEM
Replace fuse
Replace fuse
ACC wire harness faulty
GND wire harness faulty
3 : Trouble part or disposal
BE–123