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I have a kenwood player...was working fine until recently. I trouble shot with Kenwood tech support... there is a flasjing red light on the player. I removed the player and hooked it up to the battery, it turned on I reinstalled it..no go. I connected the ignition wire coming out of the deck, and it turns on.. I then connected the ignition wire coming out of the deck to the ignition wire from the ignition, just before the big connector, and still wont turn on. I am thinking there is a break somewhere from the ignition to the connector. I can either replace the wire (troublesome), or run a new wire from the ignition to the connector and tape over the bad one. Anyone know how to access the ignition on a 2004 f150?
thanks
Paul
Have you checked the Fuse F2.22 in the Central Junction Box (Fuse #22 in the fuse panel in the passenger foot well)? Do your door lock switches illuminate when the key is in the accessory/run position? Do the power windows work?
The switched ignition feed for the radio in a Lariat, comes from the "Accessory Delay Relay" (Relay #R02). The Relay supplies power to both Fuse #22 for the radio, and to circuit breaker #401 for the power windows.
If you insist on accessing the ignition switch, I believe that requires removing the steering wheel. You may be able to access the ignition switch harness back under the dash.
Yes, I looked at the fuses indicated and they are good. Windows work, I replaced the transceiver, which circles around the ignition cylinder where the key goes. The wire, yellow/green from the transceiver goes to the radio harness and provides power for the radio to turn on. There is no power coming into the wire, So somewhere, the power is not getting to it. I also replaced the ignition switch that has the connectors on it. The only thing not replaced is the ignition cylinder, if that could be the issue? I can run a wire from the battery to the radio and it turns on. I was thinking the transceiver was not switching the power from the supply into it (the transceiver) to the yellow green out wore that supplies power to the radio. Could it be a bad cylinder?
The PATS transceiver has nothing to do with the radio, are you sure that is what you are looking at?
In an XLT,FX4, or Lariat, the Light Green/Yellow switched power for the radio come directly from Fuse 22. There is a splice in the wire behind the dash where the wire splits and powers the sunroof switch illumination (if equipped) & the illumination of the door lock switches.
If the the power windows work, and fuse 22 is good (did you test this with a test light while installed?) but you are not getting power on Pin 2 of the radio connector (LG/YE) then there is a break in the wire between the central junction box and the radio connector. There isn't a direct connection between the ignition switch and the radio.
So power windows work, power door locks work, power moon roof works. However, there is no illumination to the door locks or moonroof switch. Assuming the wife just provides illumination and not power? Because the locks and moon roof work.
Ok. So lesson learned, fuse 22 is for radio power via ACC. Checked this am, blown fuse, replaced it, everything works. Visa, worth it. Lol. Thanks for the help. Silly me, electrical wiring schematics are useful.
That's good to hear, but keep in mind fuses don't blow randomly, do you have an Idea what might have caused it? if there is an intermittent short somewhere you may still need to track it down.
There's also a possibility the aftermarket radio pulls too much current, but it is unlikely it pulls more than 10 Amps.
11-13-2018, 04:14 PM
