03 expedition help

[Dohc-bird]

Yes radio cut out and back on when fuse was removed

At pin 30 I have 14.23
Pin 87 I have 0

 

[Bedrck47]

what happened when you removed the Accessory Delay Relay
I wanted for you to read continuity (OHM's) across pin 87 and pin 30 of the relay

 

[Dohc-bird]

4.89
And when I yanked the relay the radio turned off and I had no power windows

 

[Bedrck47]

ok with the relay removed the reading you should have with an Ohm meter across pins 87and pin 30 should have been no reading as that is a normally open relay and the contacts would only close when power is applied to the coil

try replacing the relay with another relay and see what happens

 

[Dohc-bird]

The same

 

[Bedrck47]

you state that the radio stays on when the key is removed.

Do the windows operate also when the key is removed and the radio is on

 

[Dohc-bird]

Yes

 

[Bedrck47]

That was the answer I expected but really didn't want to hear I will be attaching a test procedure for you to do. Read it first and asks any questions if you need to. Also if you need prints let me know

 

[Bedrck47]

Page 37 and 38 is the test you need to do

Print 150-26 is the C220b connector

print 100-02 is the power window circuit

Print 130-02 is the radio circuit.

You will see on both prints the coil for the delay relay and they both go to the Instrument cluster to pin 5 of C220b That is keeping the delay relay energized and most likely the cause of the radio and windows working after the key has bee removed

 

[Bedrck47]

relay pin layout