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Quadzilla iQuad - no mph

Posted

I just finished installing my 4" Turbo back exhaust on the new truck today.  When I was done, I went for a spin and noticed I have no mph being displayed on the Quadzilla.  I didn't check it before so don't know if this is the issue or not.  Speedo is fine on the truck, what am I missing? 

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  • Chris O.
    Chris O.

    Oh I just re-read the tread, I thought you guys are talking about map sensor. Beer probably isn’t helping here either

  • Chris O.
    Chris O.

    If you do have Infinity factory radio and steering wheel volume control buttons then the buttons are connected to Highline or Premiumline Central Timer Module (CTM), the CTM relays the buttons command

  • Mopar1973Man
    Mopar1973Man

    ABS reports the speed on the CCD network. So I would have to say it CCD network to ECM issue. Being CCD network to cluster or PCM is working. I would check for any errors.

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  • Author

Hm, on all tests

 

4.7 on CCD bus +

3.9 ON CCD bus -

 

Just curious while I'm waiting for my PCM to get here, wonder why the radio is part of the CCD network?

Edited by SavageTusk

4 hours ago, SavageTusk said:

Just curious while I'm waiting for my PCM to get here, wonder why the radio is part of the CCD network?

If you do have Infinity factory radio and steering wheel volume control buttons then the buttons are connected to Highline or Premiumline Central Timer Module (CTM), the CTM relays the buttons commands to the radio via the CCD Bus.

    • Like 2
    • Author
    15 hours ago, Chris O. said:

    If you do have Infinity factory radio and steering wheel volume control buttons then the buttons are connected to Highline or Premiumline Central Timer Module (CTM), the CTM relays the buttons commands to the radio via the CCD Bus.

     

    So if the radio is not being used by the CCD network, couldn't these be terminated going to the radio harness so there's no chance that there is any bias from the aftermarket radio?

    • Author

    :shrug: ugh,  well I put the new, freshly programmed and tested PCM in and still no mph on the quadzilla.

     

    So I get the speedometer reading on the Cluster but not on the iQuad.  I don't even think I can really say it's a truck problem, no check engine light, no codes..yet.  Do I need to trace the bus wires around some more?  I think I've exhausted everything besides replacing the ECM.  :thud:

    Edited by SavageTusk

    On 11/7/2018 at 5:09 PM, SavageTusk said:

    So I get the speedometer reading on the Cluster but not on the iQuad.

    Try a simple test of resistance between ECM plug CCD BUS + - and ODBII data link connector (DLC) CCD BUS plug + -. -> (SEE PIC.)

    Look for resistance with less than 20 ohms (Ω).

    CCD_TEST1&2.jpg

    •
    • Like 1
    • Author
    53 minutes ago, Chris O. said:

    Try a simple test of resistance between ECM plug CCD BUS + - and ODBII data link connector (DLC) CCD BUS plug + -. -> (SEE PIC.)

    Look for resistance with less than 20 ohms (Ω).

    Thanks man, I'll give this a go.

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.