Is there any way to test the factory power antenna relay? I'm thinking that has to be my problem. Does anyone have a spare PA relay - 1984 GSL-SE

 

KC was you able to do any testing?

 

Not yet. I still need to look at the wiring diagram, identify all the wires and voltage values, and setup the test. It's really easy once you understand the wiring diagram.

 

Yes - just need to look at the wiring schematic and understand which voltages go to each pin and test.

 

I found this:
Mazda's OEM antenna is controlled by a relay under the dash. The relay is activated by a fairly common +12v signal from the tuner, but Mazda chose to send a completely different signal back to the antenna, via this convoluted relay. The three wires on the original Mazda antenna wiring harness play a three way shell game between battery positive and battery negative. When the antenna is going up, the blue wire gets battery positive, and the red wire gets battery negative. When the antenna is going down, the red wire gets battery positive, and the blue/yellow wire gets battery negative. So the red lead alternates between positive and negative, the blue wire only sees positive when the stock antenna is supposed to be up, and the blue/yellow wire only sees negative when the stock antenna is supposed to be down.

I'm not getting the current I should, so relay is my suspect. Do you have a spare relay you'd sell?

 

It looks like connector J03 gets a signal from the radio when turned on. This goes to the factory Power Antenna Rely connector J01.

Since your using a non-factory head unit, it might be best not use the factory relay and just wire this up according the radio installation instructions.

 

I finally got it working as needed -- I had to bypass the factory stereo connectors for antenna, and instead, wired a line from aftermarket power antenna wire to factory antenna relay under the driver dash, with a relay in that wiring setup to send a ground to pin8. I got some wiring gremilns going on, but antenna works perfect now

 

Nice work. Way to stay after it and get it working.

 

KC - I thought I had it all working correctly. I was originally getting the stereo's ACC from a wire from connector J03, but it was causing problems with the factory antenna relay. So, I switched the ACC to a connector from J04, and antenna works perfectly now. It comes on when stereo is turned to radio, and goes down when switching to other sources. I thought all was fine.

Last night, I turned the lights on. I have no dash lights now. I'm sure it's something in the wiring with the stereo. Something's not right with the wiring in this ride, but I will figure it out, hopefully.

 

Does anyone have a source for first generation power antennas? Mine dies years ago.


Thank you in advance.
Craig

 

Does anyone have a source for first generation power antennas? Mine died years ago.


Thanks in advance for replies.
Craig

 

eBay has a lot of generic ones that will work. depending on if you're using the factory head unit or aftermarket, you might need to trigger the up/down differently.

 

All FB OEM antennas are still available new from Mazda. Obviously more expensive than aftermarket, but depends on what you're after.

 

Thank you for the useful replies.


I apologize for the double post above. I attempted to correct a spelling error and messed things up.


Craig