Remote turn-on stopped sending 12v ! HELP please!

[branden 10+ year member]

So my setup has been working fine but this morning my two amps didn't turn on when my radio did. My first thought was to check the fuse on my 4 gauge power wire... fuse is fine. I then used a multimeter to check the voltage on my remote turn-on lead and it is only reading 0.3 volts! Any idea what the problem could be?

Head unit is a Pioneer DEH-80PRS

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[gckless 5,000+ posts]

Did you pull the HU and look/measure back there?

 

[branden 10+ year member]

No. Measure what?

 

[pacustomz 10+ year member]

measure voltage at the remote coming from the stereo

 

[bbeljefe]

Head unit remote circuits aren't meant to supply much current and sometimes when you have two amps connected to one turn on lead, the slightest over current from one amp can cause damage to that circuit.

Disconnect the turn on circuit from the amplifiers and check that it's putting out 12 volts. It could be an amp that's causing the problem.

 

[branden 10+ year member]

I measured it coming out of the head unit and I'm getting 12volts. Weird... Not sure what to do

 

[jrdnhsnbrg 10+ year member]

Replace your remote wire. Sounds to me like it's shorting somewhere.

 

[branden 10+ year member]

Replaced remote wire and everything works fine again!! Thank you guys

 

[dj2perzyk]

if this ever happens again, and it is completely shorted out, you can always put your remote line to switched 12v (the red wire) this will supply 12v only when the radio is on. not a permanent fix, but works nonetheless.