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Wiring Diagram for Factory Nav Radio - looking for wires that feed(Energy Consumption and Trip info)

Discussion in 'Prius c Audio and Electronics' started by wmo168, Apr 16, 2013.

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  1. wmo168

    wmo168 Member

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    Hello,

    I just got a Factory Nav Radio from a member, thanks him so much.

    I plug everything in and the HD Radio, Radio, GPS (After market antenna) works. But I wonder which wires I am missing perhaps on Plug 7 or else where that I need to connect manually to get information update on TRIP and ENERGY CONSUMPTION display in the radio, right now they are all not updating. If it is just a few wire, I don't mind adding it and tapping into a harness under the dash.

    [​IMG]
     
    #1 wmo168, Apr 16, 2013
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  2. ROLOPR

    ROLOPR Member

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    Hey that's my photo, je,je just kidding.
    How much you invest in the navi with everything else??? Just Curious.
    Do you have an PC1 or PC2?

    Do you have the cable tha goes from Plug # 11 to Plug # 3 & #6 (Y cable).

    Also do you install backup camera??? (Plug # 1)
     
    #2 ROLOPR, Apr 16, 2013
  3. wmo168

    wmo168 Member

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    I have a PC2 and I do have Plug #11 to Plug 3 and #6 Y Cable.

    I have 13 wire in Harness 7...

    I haven't buy the backup camera yet so I don't have the single wire going into Plug 1.


    Things working are GPS, Entune, HD Radio, Radio, USB/Aux, steering wheel control, Bluetooth etc.

    Only problems

    1) CAR Trip and Energy Status may need wire.

    I check the Technical site and on Harness 7 it said G78-9 (CANH) Color BE "CAN Communication Signal" and G78-10 (CANL) Color W "CAN Communication Signal" are only difference and looks like it is feeding in the information. I also look at the Speedometer Cluster diagram harness and it has 2 Wire label G1-31 CANH and G1-32 (CANL)that as well, it looks like if I tap into and connect these two it should work. Anyone please confirm if this is what it means.

    NAV RADIO

    G78-1 (IG) - G76-7 (GND1)
    LG - BR
    Power source (IG)
    Ignition switch off
    Below 1 V
    Ignition switch ON (IG)
    11 to 14 V
    G78-4 (MACC) - G76-7 (GND1)
    R - BR
    Microphone power supply
    Ignition switch off
    Below 1 V
    Ignition switch ACC
    4 to 6 V
    G78-5 (MIN+) - G76-7 (GND1)
    B - BR
    Microphone voice signal
    See "Microphone & Voice Recognition Check" in Operation Check [​IMG]
    -
    G78-6 (SNS2) - G76-7 (GND1)
    GR - BR
    Microphone connection detection signal
    Always
    Below 1 V
    G78-9 (CANH)
    BE
    CAN communication signal
    -
    -
    G78-10 (CANL)
    W
    CAN communication signal
    -
    -
    G78-11 (AGND) - Body ground
    Shield - Body ground
    Shield ground
    Always
    Below 1 V
    G78-17 (SPD) - G76-7 (GND1)
    SB - BR
    Vehicle speed signal
    See "Vehicle Signal Check Mode" in Operation Check [​IMG]
    -
    G78-18 (SGND) - G76-7 (GND1)
    Shield - BR
    Shield ground
    Always
    Below 1 V
    G78-19 (MIN-) - G76-7 (GND1)
    W - BR
    Microphone voice signal
    See "Microphone & Voice Recognition Check" in Operation Check [​IMG]
    -
    G78-21 (SW1) - Body ground
    L - Body ground
    Steering pad switch signal
    No switch pushed
    2.97 to 3.56 V
    Seek+ switch pushed
    0.27 to 0.35 V
    Seek- switch pushed
    0.86 to 1.03 V
    Volume+ switch pushed
    1.51 to 1.79 V
    Volume- switch pushed
    2.22 to 2.66 V
    G78-22 (SW2) - Body ground
    P - Body ground
    Steering pad switch signal
    No switch pushed
    2.97 to 3.56 V
    MODE switch pushed
    0.27 to 0.35 V
    On hook switch pushed
    0.86 to 1.03 V
    Off hook switch pushed
    1.51 to 1.79 V
    Voice switch pushed
    2.22 to 2.66 V
    G78-25 (ADPG) - G76-7 (GND1)
    P - BR
    External device connection detection signal
    External device connected
    Below 1 V
    External device not connected
    2.1 to 3 V
    G78-26 (VAR+) - G78-27 (VA-)
    R - W
    Sound signal (Right)
    External device playing (When stereo jack used)
    A waveform synchronized with sounds is output
    G78-27 (VA-) - G76-7 (GND1)
    W - BR
    Ground
    Always
    Below 1 V
    G78-28 (VAL+) - G78-27 (VA-)
    B - W
    Sound signal (Left)
    External device playing (When stereo jack used)
    A waveform synchronized with sounds is output
    Cluster Harness

    G1-1 (B) - Body ground
    L - Body ground
    Battery
    Always
    11 to 14 V
    G1-2 (L) - Body ground
    V - Body ground
    Fuel signal
    Power switch on (IG), fuel level not low
    4 V or less
    Power switch on (IG), fuel level low
    4 to 14 V
    G1-3 (PAON) - Body ground
    GR - Body ground
    Front passenger airbag on indicator light signal
    Power switch on (IG), front passenger airbag indicator light off
    11 to 14 V
    Power switch on (IG), front passenger airbag indicator light on
    Below 1 V
    G1-4 (P-AB) - Body ground
    W - Body ground
    Front passenger airbag off indicator light signal
    Power switch on (IG), front passenger airbag off indicator light off
    11 to 14 V
    Power switch on (IG), front passenger airbag off indicator light on
    Below 1 V
    G1-6 (EP) - Body Ground
    W-B - Body ground
    Ground
    Always
    Below 1 Ω
    G1-7 (RV) - Body ground
    V - Body ground
    Dimmer signal
    Power switch on (IG), light control switch off
    Below 1 V
    Power switch on (IG), light control switch not off
    11 to 14 V
    G1-8 (RL) - Body ground
    W - Body ground
    Dimmer signal
    Power switch on (IG), light control switch off
    Below 1 V
    Power switch on (IG), light control switch not off
    11 to 14 V
    G1-13 (LP) - Body ground
    LG - Body ground
    Security indicator light signal
    Power switch on (IG), security indicator light off
    Below 1 V
    Power switch on (IG), security indicator light blinks
    3.5 to 9.5 V ←→ 11 to 14 V
    G1-15 (TWS3) - G1-36 (E2)
    R - GR
    Water temperature sensor signal
    Power switch on (IG), water temperature 20°C (68°F)
    About 2.45 kΩ
    Power switch on (IG), water temperature 80°C (176°F)
    About 0.32 kΩ
    G1-16 (TC) - G1-19 (SW3)
    B - W
    Tail cancel switch signal
    Power switch on (IG), tail cancel switch off (light control rheostat turns fully upwards)
    1 to 6 V
    Power switch on (IG), tail cancel switch off (light control rheostat turns fully upwards)
    Below 1 V
    G1-17 (SW2) - G1-19 (SW3)
    L - W
    Light control rheostat signal
    Power switch on (IG), tail cancel switch off (light control rheostat turns fully upwards)
    1 to 6 V (gradually change)
    G1-18 (SW1) - Body ground
    P - Body ground
    Light control rheostat signal
    Power switch on (IG)
    4 to 6 V
    G1-20 (ET) - Body Ground
    BR - Body ground
    Ground
    Always
    Below 1 Ω
    G1-21 (IG+) - Body ground
    B - Body ground
    Power switch signal
    Power switch off
    Below 1 V
    Power switch on (IG)
    11 to 14 V
    G1-22 (S) - Body ground
    GR - Body ground
    Oil pressure signal
    Power switch on (IG), oil pressure warning light off
    4 to 6 V
    Power switch on (IG), oil pressure warning light on
    Below 1 V
    G1-24 (EFI) - Body ground
    B - Body ground
    MIL (Check engine warning light) signal
    Power switch on (IG), MIL off
    11 to 14 V
    Power switch on (IG), MIL on
    Below 1 V
    G1-28 (ODO)*1 - Body ground
    LG - Body ground
    Steering pad switch signal
    Power switch on (IG), ODO switch not pressed
    10 kΩ or higher
    Power switch on (IG), ODO switch pressed
    Below 1 Ω
    G1-29 (ILL+) - Body ground
    R - Body ground
    Illumination signal
    Light control switch off
    Below 1 V
    Light control switch on TAIL or HEAD position
    11 to 14 V
    G1-30 (MSFM)*2 - Body ground
    W - Body ground
    Steering pad switch assembly signal
    Power switch on
    Pulse generation
    G1-31 (CANH) - Body ground
    G - Body ground
    CAN communication line
    -
    -
    G1-32 (CANL) - Body ground
    W - Body ground
    CAN communication line
    -
    -
    G1-34 (STRG)*1 - Body ground
    BE - Body ground
    Steering pad switch signal
    Power switch on (IG), DISP switch not pressed
    10 kΩ or higher
    Power switch on (IG), DISP switch pressed
    Below 1 Ω
    G1-39 (+S) - Body ground
    SB - Body ground
    Speed signal for other system (Output)
    Power switch on (IG), wheel being rotated
    Pulse generation (See waveform 1)
    G1-40 (SI) - Body ground
    V - Body ground
    Speed signal for other system (Input)
    Power switch on (IG), wheel being rotated
    Pulse generation (See waveform 1)
     

    Attached Files:

    #3 wmo168, Apr 16, 2013
  4. ROLOPR

    ROLOPR Member

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    thanks for this, now I'm clear that the voice command button can be used on a PC2 for future Aftermarket Head Units, and the mic wires id for the mic Mod.
     
    #4 ROLOPR, Apr 16, 2013
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  5. wmo168

    wmo168 Member

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    Looks like they are prewire to the radio and harness since it uses different voltage for the wire. I believe we just need to find and add the voice command switch in the steering column.
     
    #5 wmo168, Apr 17, 2013
  6. ROLOPR

    ROLOPR Member

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    Installed the PC3/4 steering wheel pads on my PC2 and the only thing that doesn't work are the trip and display buttons, for the Voice Command button not sure since I don't have a HU yet.

    BTW the wiring from the PC3/4 has more wire compared to PC2.
     
    #6 ROLOPR, May 27, 2013
  7. wmo168

    wmo168 Member

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    You change the right control pad too? I thought only left side need to be change
     
    #7 wmo168, May 27, 2013
  8. ROLOPR

    ROLOPR Member

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    Must changed it since both pad wiring connectors are diferent between PC3/4 and PC2, and you connot unplug and connect back to the other plugs.

    I need to verify if open the pad and replace only the VC button works, but since I see more wires and some goes from left to right pad, I don't think so.

    The left PC3/4 use 6 wiring connector and the PC2 only use 4.
     
    #8 ROLOPR, May 27, 2013
  9. wmo168

    wmo168 Member

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    I read the diagram and is the same. The switch u bought from prius c?
     
    #9 wmo168, May 27, 2013
  10. ROLOPR

    ROLOPR Member

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    YES, came from a PC4.

    That's what I lost since the wiring should work with all models, but apparently not.
     
    #10 ROLOPR, May 27, 2013
  11. ROLOPR

    ROLOPR Member

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    Open the Steering wheel pad where the voice command is to see how it look inside:

    IMG_4137.JPG IMG_4138.JPG IMG_4139.JPG IMG_4140.JPG IMG_4141.JPG IMG_4142.JPG IMG_4148.JPG IMG_4151.JPG

    Now If the PC1/2 has the same 3 pin connector for VC & BT then is up to replace everything on the pad and that's it.

    Then there is s 6 pin connector from the left side comparing to what I see of 4 pin connector in the PC2.

    Here is a head unit wiring diagram posted before with all connectors, in page 2 the left and right pads goes to Z3(D) connector (12 pin) and recall pins #8, #9, #10 & #11, but I confused because the wiring visually in the photo is a 10 pin connector. So I presume that the wiring diagram is not for Prius C.

    Finally reading the info above provide it by VMO168 doesn't mention Connector 78G pin 23 (SWG) and Pin 24 (SW3) showed in the Wiring attached

    Can anyone confirm this????
     

    Attached Files:

    #11 ROLOPR, May 29, 2013
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  12. wmo168

    wmo168 Member

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    I will try to look it up tomorrow.
     
    #12 wmo168, May 30, 2013
  13. ROLOPR

    ROLOPR Member

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    Do you verify it???
     
    #13 ROLOPR, Jul 17, 2013
  14. petnieto

    petnieto Junior Member

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    #14 petnieto, Sep 27, 2014
  15. rossgeek333

    rossgeek333 Junior Member

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    I recently got a OEM nav unit to upgrade my Prius C 2 to the OEM c3 level, but am now concerned that i have to buy additional wiring to make this work? I know I read that most everything will work minus the Car functions and GPS wire (unless I get a cheap GPS one and make it fit which i will) , but I don't know if I have this Y cable (or is that in all Prius C models with the 6 speakers) that I keep reading about for this unit?

    If anyone can shed some further light on the Issue of making the Car button functions (energy/trip) work? I am confused by the wiring lingo....
     
    #15 rossgeek333, Mar 18, 2015
  16. wmo168

    wmo168 Member

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    I am the one who is the first one who make this work.

    Not sure where you get the Y cable story from? You do not need a Y cable or anything to make GPS or CAR function work. The Prius C 2 has 6 speakers and C3 and C4 has 6 speaker so there should not be any issue.

    Read this post again and it will show you how to do it, assuming you never work or seen a car cable harness before, that will be a learning curve. The second question is Do you know how to cut wires? I am glad to walk you thru. You know how to take off dash trim and screw?
     
    #16 wmo168, Mar 18, 2015
  17. rossgeek333

    rossgeek333 Junior Member

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    Thanks for the reply and good to know about the Y cable (didnt know that was for the speakers ....but yes I have 6 speakers too so good!)

    As far as cutting wires and such no..... I mean I have a general idea, but do I have to go buy wiring somewhere to splice it to go to the nav unit or? I read your post on the codes and wiring colors etc, but was confused, but im sure I can learn.

    To answer your last question yes, I do know how to get access to my car's trim and take the panels off yes.

    Thank you for the help and assistance appreciate it!!!
     
    #17 rossgeek333, Mar 19, 2015
  18. PriusC_Commuter

    PriusC_Commuter Active Member

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    I wish I didn't read this thread, I'm really tempted to pick up a C3 Nav head unit for my C2. So everything is plug and play, except GPS and XM and steering wheel voice button? Do the rest of the steering wheel buttons work (such as volume and call answer/hang up)? Does the USB port and microphone for bluetooth calls work plug and play?
     
    #18 PriusC_Commuter, Mar 19, 2015
  19. ROLOPR

    ROLOPR Member

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    Yes everything works if Installing a Navi radio. even if you find the Voice command pad, also works. I did mine already.
    IMG_0273.JPG
     
    #19 ROLOPR, Mar 20, 2015
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  20. rossgeek333

    rossgeek333 Junior Member

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    thats what ive read too...plug and play ill post a picture of my upgrade when i get it installed next week, maybe ill have the Car wiring issue figured out too...
     
    #20 rossgeek333, Mar 20, 2015
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