NO AUDIO

Discussion in 'Gen 2 Prius Audio and Electronics' started by Knightrider, Mar 18, 2019.

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  1. Knightrider

    Knightrider Member

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    Since I revived a car that has sat 7 months w dead HV and low voltage 12v.
    I have been enjoying the car but fighting audio , dome and smart key issues.

    I am curious- replacing the radio- I noticed I have a 30A fuse underhood for AMP, but no physical amp under driver or pass seat.
    I don't see the wire harness under seats either- so was curious- was this an option for 04-05 that was just left in the fuse box?

    Anyone have a stock HU they want to let go cheap?
     
    #1 Knightrider, Mar 18, 2019
  2. Knightrider

    Knightrider Member

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    Anyone had issues w Radio failure also taking the dome lamps out?
    I am about to swap the power distribution module out on the drivers footwell----

    The relays and fuses are all good including the two fuseable links.
     
    #2 Knightrider, Mar 18, 2019
  3. Knightrider

    Knightrider Member

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    No one?
    Is there a possibility its turned off on the MFD- ?
     
    #3 Knightrider, Mar 20, 2019
  4. audiodave

    audiodave Active Member

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    #4 audiodave, Mar 20, 2019
  5. Knightrider

    Knightrider Member

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    Nope- zero dome lamp, smart key or radio function
    MFD says NO AUDIO

    I wondered is this setting I could change w diagnostic mode?
     
    #5 Knightrider, Mar 20, 2019
  6. audiodave

    audiodave Active Member

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    #6 audiodave, Mar 20, 2019
  7. Knightrider

    Knightrider Member

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    Ive replaced all fuses to make sure they were all in good shape

    Pulled and swapped relays in the cabin as well.

    I am curious I have an AMP fuse but no amp- and do not have the JBL HU
    anyone confirm their non- jbl has the fuse in the underhood.
     
    #7 Knightrider, Mar 20, 2019
  8. audiodave

    audiodave Active Member

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    #8 audiodave, Mar 20, 2019
  9. audiodave

    audiodave Active Member

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    #9 audiodave, Mar 20, 2019
  10. Knightrider

    Knightrider Member

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    You know-
    I have been searching this for some time now-
    I am beginning to wonder if I have a failed mfd-

    I will open it up and see if I can see any broken solder joints

    Easily repaired if the case
     
    #10 Knightrider, Mar 20, 2019
  11. Knightrider

    Knightrider Member

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    Underhood 30amp

    Number 45 is 30 amp fuse for amp
     

    Attached Files:

    #11 Knightrider, Mar 20, 2019
  12. Knightrider

    Knightrider Member

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    Okay - needing some input

    I did the MFD diag and have Ncon for H/U and Chk on the MFD under Lan check.

    Any ideas?

    Think it's as simple as solder connections on the boards???
     
    #12 Knightrider, Mar 20, 2019
  13. audiodave

    audiodave Active Member

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    I don't know much about the MFD outside of caps going bad. But I do know if you replace your deck there's a special plug needed to make that work that comes with installation package. Like it puts power to the MFD.

    Posted via the PriusChat mobile app.
     
    #13 audiodave, Mar 21, 2019
  14. audiodave

    audiodave Active Member

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    #14 audiodave, Mar 21, 2019
  15. Knightrider

    Knightrider Member

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    Are you taking about the in-line 68ohm resistor we need to add?
     
    #15 Knightrider, Mar 21, 2019
  16. audiodave

    audiodave Active Member

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    #16 audiodave, Mar 21, 2019
  17. Knightrider

    Knightrider Member

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    I am okay adding that myself-
    I just need to check the solder on the MFD-
     
    #17 Knightrider, Mar 21, 2019
  18. audiodave

    audiodave Active Member

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    Did you change your deck?

    Posted via the PriusChat mobile app.
     
    #18 audiodave, Mar 22, 2019
  19. Knightrider

    Knightrider Member

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    I will be upgrading-
    I have not swapped yet-
     
    #19 Knightrider, Mar 22, 2019
  20. Knightrider

    Knightrider Member

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    Update: swapped Deck- no change. I do have all AC function - Still no audio - I will be tracing many wires before swapping Power Distribution or Body Control ECU

    I cannot understand why Toyota changed the wire colors in between junctions so often---- it's mind blowing.
     
    #20 Knightrider, May 5, 2019
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