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  1. Ford Ranger IV 2020 - No OBD connection

    I think i may have some understanding - as i never really dug into this (specific) transition between the DLC & GWM 1. The Diag 1 & Diag 2 - we see on the diagrams are - Internal to the GWM (Only) these are the micro controller circuits that pick up the com data from all the busses 2. So the...
  2. Ford Ranger IV 2020 - No OBD connection

    Quick Ref for Module Coms: These are for the US Version Ranger The ROW Rangers will have a (TCM - Transmission Control Module) and its on the HS CAN 1 Bus that takes place of the integrated (PCM Control the US Version has) MS CAN -SODR -SODL -FCIM -TRM -RTM HS CAN 1 -PCM -OBD II -APIM -DCDC...
  3. Ford Ranger IV 2020 - No OBD connection

    Ok - Provide more details I think that since you have a (No Com and No Start) and noted wire mismatch, it may be a good idea to replace the GWM or at least try another scan tool or Forscan Adaptor, just something to possibly get past (no com) What we need is a (RH Drive) truck to see how the...
  4. Ford Ranger IV 2020 - No OBD connection

    Ok -if dealer says it should be good - then before I would spend money on a (Possible) bad or incorrect GWM , I would try another scan tool or the OBD Link - EX , the proven adapter that works- as we are at a crossroad , the no start issue may have nothing to do with the (no com) issue Once com...
  5. Ford Ranger IV 2020 - No OBD connection

    The curiosity question is: Is there continuity between pins: 2 - 17 - HS2 (-) 3 - 18 - HS2 (+) 4 - 19 - HS1 (-) 5 -20 - HS1 (+) 1. I am wondering (since the GWM is pinned to handle different configurations - truck to GWM. Is there a programing issue (configure) the front DLC ports to open...
  6. Ford Ranger IV 2020 - No OBD connection

    Then this confirms that GWM cannot communicate to the truck as it cannot see the main busses HS1 & HS2 - I would check with dealer for correct part number (most important) is the dash # Possible Correct (-#) = BA - BC or AD - Your Market and LH Drive (Engine Installed?) may be part of the...
  7. Ford Ranger IV 2020 - No OBD connection

    So we can confirm - that the GWM is not (internally) splicing the circuits Did you confirm that (NONE) of the Front DLC - pins connect to Pins 17 through 20? You have the Pins on the module - to match the wire harness, so we need to know if (DLC Pin 3 will only route to Pin 3) it may also...
  8. Ford Ranger IV 2020 - No OBD connection

    Another item to note - and I think you are saying - if we look at Pins 2-5 - we know your harness does not have the wires - but are there pins on the module for them? can you take a pic of the back of the module C2431 connection point?
  9. Ford Ranger IV 2020 - No OBD connection

    I am confused as to what you are checking - 3- > 3 I am wanting to know (using a meter) and this EXAMPLE of a GWM - not exact part number Front DLC - Pins 1 through 16 Where do they pinout (Here)? This way I can determine if the GWM you have will power match your wiring connector C2431 or...
  10. Ford Ranger IV 2020 - No OBD connection

    Since it appears that the C2431 matches (US Version) but the DLC side may be different, in other words - what can the scan tool see (Direct) vs GWM (In between) Internal Pin Outs: DLC Pin 3 - is fed from C2431 Pin 18 DLC Pin 4 - is fed from C2413 Pin 1 DLC Pin 5 - is fed from C2431 Pin 14 DLC...
  11. Ford Ranger IV 2020 - No OBD connection

    So yes - this is the internal diagram of the GWM Internal Pin Outs: DLC Pin 3 - is fed from C2431 Pin 18 DLC Pin 4 - is fed from C2413 Pin 1 DLC Pin 5 - is fed from C2431 Pin 14 DLC Pin 6 - is fed from C2431 Pin 20 DLC Pin 11 - is fed from C2431 Pin 17 DLC Pin 14 - is fed from C2431 Pin 19...
  12. Ford Ranger IV 2020 - No OBD connection

    You need to understand that the Gateway Module has 2 connectors - The Rear Connector is for the Gateway Module (GWM) and the front connector is only for the OBD (DLC) the DLC is not wired direct to the rear connector - The Scan Tool (Communicates) to the GWM for the other networks. Here is a...
  13. Long term fix for horn

    Ok, had to recover the pic from my Hard Drive (Failure) If you are talking about C144 - this does not tie in the horn or hood ajar but this does show G114 which is the Ground Point for the Horns (Truck & Alarm) note there are 2 separate horns and this is also the ground for the hood ajar...
  14. Ford Ranger IV 2020 - No OBD connection

    A little more detail: Any codes being picked up? (com) Or Issues with scan tool not communicating? Has the truck ever ran after accident and where is the damage?
  15. Dashcam Power Options

    There is a better option- and they make a T-Harness that taps off the Power Mirror and or Rain Sensor- they are noted in the dash cam threads - simple and clean
  16. Long term fix for horn

    I had an actual pic of the ground point - but it is on the shelf behind the headlight (drivers side) it is a shared ground - Hood Latch - Alarm Horn - Truck Horn - and Brake Fluid light, I assume the connector behind the headlight (you are referring) is the actual horn connector, it sounds like...
  17. Sync 3 v3.4.23188

    Affirmative NA 2-25 released May 2 2026, I updated last year at 2-24 and since it is now out of Free updates , I plan on updating every 2 or 3 years.
  18. Sync 3 v3.4.23188

    It appears it is a legitimate update - tied to APIM (overheat) issues and the recent MAP update, Ford servers however have not been updated to show the new Sync update - they do however show the new MAP Update - The MAP update appears to be the main push for the Sync update and the integration...
  19. Sync 3 v3.4.23188

    The good news is that 23188 will be the last update for the 5G , unless there is something major that must be pushed out.
  20. Another displeasing experience with a dealership!

    Then Extended (eliminates) the issues -(It should) anyways





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