Toyota PT546-00140, Troubleshooting Manual

Page: 8 / 41

7 RADIO Cannot set station select button, Preset memories disappear.
Can CD be inserted in CD player?
Check radio fuse is OK?
Are ACC and +B applied to head unit ?
8
RADIO Analog reception can receive but, HD radio can not receive.
Is radio setting of HD active?
Problem with radio wave signals or location?
Is analog reception good?
Head unit faulty.
Replace fuse.
ACC and +B wire harness
faulty.
Check if GND (wire harness side) to head unit is
OK?
GND faulty.
Head unit faulty.
Set HD ON at audio
settings.
Poor signals, poor location.
Head unit faulty.
Go to No.6
Yes
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
No
No
Yes
Check if the station can broadcast HD.
Yes
The receiving station
which can broadcast HD.
No