No power to radio
04-07-2015, 08:21 AM
#12
Junior Member
Can't speak for the OP, but I had the same problem when I bought mine.
It was the delayed accessory relay in the inside fuse panel.
To troubleshoot, I swapped the #R02 relay (DAR) with #R03 (Highbeam control) Worked like a charm. Haven't had a chance to replace it yet, cause the dealer wanted $52 lol. And I couldn't tell you the last time I drove at night. Hope this helps!
It was the delayed accessory relay in the inside fuse panel.
To troubleshoot, I swapped the #R02 relay (DAR) with #R03 (Highbeam control) Worked like a charm. Haven't had a chance to replace it yet, cause the dealer wanted $52 lol. And I couldn't tell you the last time I drove at night. Hope this helps!
04-07-2015, 08:54 AM
#13
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Join Date: Apr 2015
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Can't speak for the OP, but I had the same problem when I bought mine.
It was the delayed accessory relay in the inside fuse panel.
To troubleshoot, I swapped the #R02 relay (DAR) with #R03 (Highbeam control) Worked like a charm. Haven't had a chance to replace it yet, cause the dealer wanted $52 lol. And I couldn't tell you the last time I drove at night. Hope this helps!
It was the delayed accessory relay in the inside fuse panel.
To troubleshoot, I swapped the #R02 relay (DAR) with #R03 (Highbeam control) Worked like a charm. Haven't had a chance to replace it yet, cause the dealer wanted $52 lol. And I couldn't tell you the last time I drove at night. Hope this helps!
04-07-2015, 09:18 AM
#15
Junior Member
Damn, sorry man. Maybe start checking more fuses. I know there's at least 5 that are associated with the radio.
All my other accessories worked correctly FYI.
Good luck!
All my other accessories worked correctly FYI.
Good luck!
02-23-2016, 10:59 PM
#17
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2004 Ford F-150 Lariat...Jumped truck 4 days ago...battery was continually dying. All of a sudden I have no power to the radio...checked all the fuses 1,7,22 and 31..still now power to the number 7 fuse. Any ideas?
02-24-2016, 05:05 AM
#18
Moderator (Ret.)
Cool to see that folks still use the search!
Do you have a multimeter or a simple test probe (screwdiver looking tool with a lightbulb in it and a ground wire attached to it)? If so, remove the center radio/controls bezel, remove the radio, and then probe for power at the radio harness connector. With the ignition key turned to the "on" position (don't start the truck), you should see power (12 volts) at pin 1, and pin 2. Pin 1 is radio power constant, used to store the radio presets and clock. Pin 2 is powered when the ignition is in the "on" position, and powers the radio. Below is a pinout for the large, main radio harness (there can be up to three harnesses used on our F150 radios, depending on options you may have). The color codes should be the same for 2004 to 2008.
Do you have a multimeter or a simple test probe (screwdiver looking tool with a lightbulb in it and a ground wire attached to it)? If so, remove the center radio/controls bezel, remove the radio, and then probe for power at the radio harness connector. With the ignition key turned to the "on" position (don't start the truck), you should see power (12 volts) at pin 1, and pin 2. Pin 1 is radio power constant, used to store the radio presets and clock. Pin 2 is powered when the ignition is in the "on" position, and powers the radio. Below is a pinout for the large, main radio harness (there can be up to three harnesses used on our F150 radios, depending on options you may have). The color codes should be the same for 2004 to 2008.
