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Totally agree that no start issue may have nothing to do with the (no com) issue. Regarding the FOB - keys look original and they do work (lock, unlock, ignition). Start button is blinking (green). Today I was unable to check the truck further. Hopefully tomorrow.

I will check it. Thanks!

Double checked the continuity 2 - 17 - HS2 (-) - nothing 3 - 18 - HS2 (+) - nothing 4 - 19 - HS1 (-) - nothing 5 -20 - HS1 (+) - nothing Pin 2 has only continuity with pin 3 (120 omh). The same with pin 4 it only has continuity with pin 5 (120 omh). Contacted the local dealer. Based on...

Did you confirm that (NONE) of the Front DLC - pins connect to Pins 17 through 20? - yes Basically the GWM may be internally circuited to cover both (options) for the wire harness, IDK if you checked all of them or just stopped at pin 3. - checked all If Pin 3 DLC etc do not touch the pins...

OBD -> GWM 1 -> empty 2 -> empty 3 -> 3 (there is no wire going to this pin) 4 -> 1 (matches your diagram) 5 -> 14 (matches your diagram) 6 -> 5 (there is no wire going to this pin) 7 -> empty 8 -> empty 9 -> empty 10 -> empty 11 -> 2 (there is no wire going to this pin) 12 -> empty 13 -> empty...

Sorry for late response. This is what I have

I went through all the wires from OBD side. It clearly matches RHD logic, but the wiring is as it is supposed to be for LHD. 3 -> 3 (there is no wire going to this pin) 4 -> 1 (matches your diagram) 5 -> 14 (matches your diagram) 6 -> 5 (there is no wire going to this pin) 11 -> 2 (there is no...

One more thing. I have disassembled this module and plugged it in directly. Grounds (2 wires) OK, Power (2 wires) OK, All 5 CAN lines have 60 omh resistance and voltage around 2.5V. However I have no idea how OBD could work with such GTW internal wiring.

If the module's internal wiring would be the same as you posted in your diagram there would be no problem. Could it be that this module is for RHD drive?

Checking from OBD side pins 6&14 have infinite resistance to pins 17, 18, 19 & 20 from GTW side.

I should also mention that the ignition can be turned on, lock/unlock works.

I didn't expect such detailed answer. Thank you very much! The wiring diagram you posted shows that all OBD pins are internally wired to GWM and those pins accordingly have wires. I have the module disconnected and checked the pins wiring from OBD to GWM (continuity). OBD -> GWM 3 -> 3 (there...

This is the connector going to SDLC. There are no wires going to pins 2-5.

The damage is to the left front. Electronics seem to work, however I cannot get OBD connected to the truck.

There is no obd connection. There are no wires going to pins 2-5 (mine is left hand drive, which makes sense). All CAN pairs going to SDLC have 60 omh resistance with SDLC connected. Grounds are OK. There is constant power to pins 13 and 24 as shown in the wiring diagram. From wiring...

Hey, I’ve got a 2020 Ford Ranger and I’m troubleshooting a CAN/OBD issue. At the OBD port, pins 6 and 14 show close to 0 V, and I measure about 120 Ω resistance between them. I started digging by disconnecting the SDLC module and checking continuity with a multimeter. I found continuity between...