Radio display not working

Tiny
MIKE KOPPES
  • MEMBER
  • 2002 PONTIAC BONNEVILLE
  • 3.8L
  • V6
  • TURBO
  • 230,000 MILES
The display on the radio does not work but the outdoor temperature is still displayed.
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Tuesday, March 1st, 2022 AT 6:49 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

There is a chance the backlighting has failed in the radio. However, let's check a few things. First, is all interior lighting working in the vehicle? I ask because the radio illumination power is supplied by the interior lighting system.

If you look at pics 1 and 2, they show the wire color and pin identification at the radio to check for power. Note the wire is solid yellow.

Check that wire for power. There is a splice before the radio that may have failed and there is no power reaching the radio.

If there is power, suspect the bulb is bad.

Here is a link you may find helpful when checking the wiring:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know.

Joe

See pics below.
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Wednesday, March 2nd, 2022 AT 7:20 PM

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