I have a jeep with a lq4 that has been on the road for around 100k miles. The serial wire just up and died.
UPDATE: Yep, disregard. BAFX thing went bad and the usb port on my laptop all at the same time. OBD2 port is fine LOL
I have a jeep with a lq4 that has been on the road for around 100k miles. The serial wire just up and died.
UPDATE: Yep, disregard. BAFX thing went bad and the usb port on my laptop all at the same time. OBD2 port is fine LOL
Last edited by code4; 08-21-2019 at 06:03 PM.
I'd be tempted to double check the pin in the OBD2 port - wires don't usually go bad unless cut or pinched by something. The end that gets connected/disconnected a lot is probably where your problem lies.
Not sure what the symptoms of a failed PCM might be - never had one go bad on me yet (touch wood)
55 Belair swapped 2000 LQ4, 4L80E, 873 cast iron heads have been swapped for 853's, truck manifolds, 2 1/2 inch exhaust, glass pack mufflers, no cats.
yeah, looking at everything. chasing our tail here. Maybe the BAFX blue tooth adapter went out and our lap top. That is what I used to verify. I also read the the serial port should put out 3 to 5 volts which it is not.