ML Amp Repaired - now no volume or response from radio controls
08-18-20, 01:46 PM
#1
Driver School Candidate
Thread Starter
ML Amp Repaired - now no volume or response from radio controls
Just received my ML amp back after a couple of weeks in transit to and from CA.
Half re-installed everything for testing and replaced the 30A fuse in the trunk.
Start the car and Navigation is now back but Audio Off. No response from Volume/Power **** or Mode button on steering wheel.
I can voice command the radio on and see the stations / touchscreen is working but no control over the volume as there is still no sound. Checked all the audio related fuses 7.5amps in both kick panels.
The only thing I haven't checked is the box fuse on the passenger side engine bay.
Tried disconnected neg terminal for a few minutes and no change. I have the battery disconnected now for pro-longed amount of time but is there anything else to check??
Half re-installed everything for testing and replaced the 30A fuse in the trunk.
Start the car and Navigation is now back but Audio Off. No response from Volume/Power **** or Mode button on steering wheel.
I can voice command the radio on and see the stations / touchscreen is working but no control over the volume as there is still no sound. Checked all the audio related fuses 7.5amps in both kick panels.
The only thing I haven't checked is the box fuse on the passenger side engine bay.
Tried disconnected neg terminal for a few minutes and no change. I have the battery disconnected now for pro-longed amount of time but is there anything else to check??
08-18-20, 08:07 PM
#2
Driver School Candidate
Thread Starter
If it helps someone troubleshoot my issue...
I left the - terminal disconnected for several hours and reconnected, got nothing but I did note one thing.
The radio unit itself is not illuminating as it is night time, but the nav, buttons below the radio and shifter console all have lights.
I took everything out and tried reseating connectors, still nothing.
The only thing I haven't tried is replacing each of the radio fuses and the radio box fuse under the pass side engine bay fusebox.
I left the - terminal disconnected for several hours and reconnected, got nothing but I did note one thing.
The radio unit itself is not illuminating as it is night time, but the nav, buttons below the radio and shifter console all have lights.
I took everything out and tried reseating connectors, still nothing.
The only thing I haven't tried is replacing each of the radio fuses and the radio box fuse under the pass side engine bay fusebox.
08-19-20, 11:41 AM
#3
Driver School Candidate
Thread Starter
So I checked all of my 7.5 Car Audio related fuses and despite physically looking good, replaced them all anyway. Still no response/illumination from the radio unit.
Cannot seem to get the J fuse out of the passenger side fuse box as that is literally the last thing to check. Will try a multimeter later also to see if I can find 12v out of the harness.
Cannot seem to get the J fuse out of the passenger side fuse box as that is literally the last thing to check. Will try a multimeter later also to see if I can find 12v out of the harness.
09-09-20, 05:58 AM
#4
Driver School Candidate
So I checked all of my 7.5 Car Audio related fuses and despite physically looking good, replaced them all anyway. Still no response/illumination from the radio unit.
Cannot seem to get the J fuse out of the passenger side fuse box as that is literally the last thing to check. Will try a multimeter later also to see if I can find 12v out of the harness.
Cannot seem to get the J fuse out of the passenger side fuse box as that is literally the last thing to check. Will try a multimeter later also to see if I can find 12v out of the harness.
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