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Cadillac Audio, Video and Security Systems Discussion, Some navigation questions in Item Specific Cadillac Discussion; the pinning is NOT the same for your car and that nav unit i assume you were repinning it! you ...
  1. #31
    CadillacSTS42005's Avatar
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    Re: Some navigation questions

    the pinning is NOT the same for your car and that nav unit
    i assume you were repinning it!
    you MUST do that or you risk frying the bcm or the nav
    that aux malfunction is the ground sense wire for the nav for the aux input feature getting another signal sense other than ground!

  2. #32
    N*Caddy's Avatar
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    Re: Some navigation questions

    No I made no mistake (checked 4-5 times):
    F1 ……….+12V
    E16 ……… GND
    E6 ………. Serial data
    F6 ………. Serial data
    The Aux. enable signal is F16 nothing was connected to that pin.
    Although I made a small adapter harness (with only these wires) by coincidence these wires are the same even in my car so I went 1 to 1. So I did not connected the car harness connector, I connected the adapter harness in the HU preserving only the power and data (hence the NAV unit did sent to the IPC the error codes I mentioned). Basically the adapter harness only preserves the power and data wires from all the others in the car harness.

    J how is the unit behaving when is locked? Does the screen turn ON? Does it tilts? Anything?

    I need to know if the unit is blocked or not so I know what I tell the seller. There is a DOA warranty and a 7-day return. Not to mention he did state the unit is new never installed (no VIN), even specified I don’t need to go to the dealer is just plug and play.

  3. #33
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    Re: Some navigation questions

    unit will power up
    blue splash screen with 02+ crest and wreath show
    then in a gray box with black letters
    THEFTLOCK PROTECTION ACTIVE will light up

    you have to be missing a wire for it not to fully power up...
    make sure your twilight and all lamps are off
    and directly connect the unit to your OE plug
    see if it lights up
    as long as you keep the dimmer off youll be okay

  4. #34
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    Re: Some navigation questions

    Yet another 5 or 6 tests later and the adapter harness if fine:

    Here is my adapter harness:
    32 pins Male Connector-------------------->32 pins Female Connector
    F1----------------------------------------------->F1 (+12V)
    E16--------------------------------------------->E16 (GND)
    F6----------------------------------------------->F6 (Serial Data)
    E6----------------------------------------------->E6 (Serial Data)

    Also just for fun I bench powered my trusty old Catera HU using the adapter and yet all fine.

    Returning to the NAV unit:
    The power was good since the unit sent the 3 error codes to the IPC (thus it was working).
    The data wires were good since the IPC did received the error message from the unit.

    The codes were current with the NAV unit connected to the car. Then suddenly vanished when the unit was removed from the car (I mean not even in history).

    So my harness is good, my only hope now is that the VIN was not blank (as stated in the sale).

    I have two data sources for my car pin layout (the FSM and the Mitchell Repair Manual) both consistent, and also two data sources for the 2002/2003 pin layout for the NAV unit (same Mitchell Repair Manual and the diagrams J posted - also consistent). Then I have two (various years) HUs and based on my measurements the pins are correct. I am absolutely positive everything is correct. Yet the unit does not boot, lights on the buttons turn on but that’s about it, no response to any button, no image on the screen.

  5. #35
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    Re: Some navigation questions

    Quote Originally Posted by CadillacSTS2003 View Post
    unit will power up
    blue splash screen with 02+ crest and wreath show
    then in a gray box with black letters
    THEFTLOCK PROTECTION ACTIVE will light up

    you have to be missing a wire for it not to fully power up...
    make sure your twilight and all lamps are off
    and directly connect the unit to your OE plug
    see if it lights up
    as long as you keep the dimmer off youll be okay
    Do you know if this is also available for this part number unit 25755259?

    I am willing to bet all my savings the wiring was fine and no wire is missing. My unit (and all the non-NAV units) have an second ground on F5. On the NAV unit that is a “Antenna select band 2 signal” (thus here is a possible problem – output shorted to ground).
    E1 is not needed (is the power antenna, definitely not important)
    E4 – not used (in NAV units)
    E5 is just a shield
    E6 – data wire (essential and was connected)
    E7 – Auxiliary video low signal (not important, can go without)
    E8 – Auxiliary video low high (not important, can go without)
    E9 – Auxiliary audio Left (not important)
    E10 – Auxiliary audio Right (not important)
    E11 is just a shield
    E12 – Audio out left + (not important)
    E13 – Audio out left – (not important)
    E14 shield
    E15 shield
    E16 – GND (absolutely essential and was connected)
    F1 – PWR + (absolutely essential and was connected)
    F2 – VSS (not essential)
    F3 – Not used (in NAV units)
    F4 – Antenna select band 1 signal (not needed)
    F5 – Antenna select band 2 signal (not needed)
    F6 – data wire (essential and was connected)
    F11 – Shield (for chime)
    F12 – Chime signal - (Not essential)
    F13 – Chime signal + (Not essential)
    F14 – Audio out right - (not important)
    F15 – Audio out right + (not important)
    F16 – Auxiliary Detection signal (not important)

    So there is really no wire needed, all you need is power and data.

  6. #36
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    Re: Some navigation questions

    wrong
    for the navs the fire from E4 is carried over from the non nav harness to the nav plug

  7. #37
    Cliff8928 is offline Cadillac Owners Fanatic
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    Re: Some navigation questions

    Yep, E4 is not specific for navigation or not. (Navigation (domestic) being RPO U3R). The wire at E4 is labeled as FM Composite Signal and goes to the antenna module.

  8. #38
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    Re: Some navigation questions

    wow
    idk why i said fire
    i ment wire...
    lol

  9. #39
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    Re: Some navigation questions

    Ok the F4 is NOT IMPORTANT for boot up (in my setup is not used anyway) suppose to go to the antenna selector module (’98 and UP glass integrated antennas). Yes my mistake I missed this wire, basically this is the wire that commands the module to select between the FM and AM antenna.

    Just one last question before I return the unit.
    While the unit is blocked (i.e. the blue splash screen with the “THEFTLOCK PROTECTION ACTIVE” in the gray box) does it responds to the TILT command? (Please say is not because it means the display is kaput/fried/stone dead + the unit is blocked on some VIN – but I have no way to see that since the display is dead).

    I must say I am pretty pissed off due to the whole thing .

  10. #40
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    Re: Some navigation questions

    no
    the screen wont even open if its theftlocked
    trust me
    i wish it could id be easier to send disks

    if you have aim im me
    lacsevillets
    easier to talk direct there and there are some things id like not to divulge...

  11. #41
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    Re: Some navigation questions

    Today was the second attempt, connected the NAV unit along with the RIM and nope, still dead screen same error messages on IPC. Then I swapped with my other spare unit ’99 BOSE Eldo unit and fired right up. So conclusion, the NAV unit is DOA.

  12. #42
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    Re: Some navigation questions

    i dont think so
    but gl

  13. #43
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    Re: Some navigation questions

    I just returned the NAV unit. I can get pass that AUX input error code. The seller had no other to replace this one so now I am back to square one. Looking again for a NAV unit (preferably Gen.1) in case somebody has one.
    Meanwhile working hard on the BOSE conversion. The work on those wire harnesses is progressing so slowly (the shielding part is killing me). I did not went the easy route buying shielded cable, I am going the hard way (as from factory) with 22 & 18 AWG wires (by case) and bare wire + aluminum foil tape for shield, then on top black electrical tape. In the end the harness looks as made from factory. The only thing I was unable to replicate is the wires color – can find some colors. So far I invested ~$130 in wire spools alone not to mention shielding tape + electrical tape + some 2 more weekends of harness making.

  14. #44
    Ur7x is offline Cadillac Owners Connoisseur
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    Re: Some navigation questions

    I got your PM and I'm sad to report that I cannot offer any more help then STS2003 has already offered.. It looks to me like your suspicion that something is wrong with the head unit is right.

    My advice would be work with STS2003, he is your best chance to get this to work... He has successfully done several of these conversions. If he can't do it, no one can...

    I have a question for STS2003... did you ever get the voice activation on your system to work?

  15. #45
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    Re: Some navigation questions

    nope
    to date i have never had a non nav car to a nav car have voice command work
    i had the dealer look into it and they said its a feature they turned on in the BCM
    its on now but still it doesnt work
    i THINK the onstar module needs reprogrammed which i was planning on having done when i upgraded my onstar but i never got around to it

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