Used the truck Tuesday to take the wife to the airport so plenty of charge time. Remote start Saturday night failed. It did one bump and didn't start.
I started it from the cab, overriding the diesel preheat for fear the batteries were (has happened before after sitting) unable to start the truck, and the dash lit up like a Christmas tree, flashing and binging, etc.
Pretty much all modules lost communication, all safety features disabled. I unplugged my OBDLink MX+ and stopped/started and re-plugged it. Read and cleared codes for ABS, Engine, BCM. CEL wouldn't go out and still saying ABS module coms fault. Could not get the ABS fault to clear with AlfaOBD, Torque, or OBDLink. I was going to be late picking up the wife at the airport and should have just hopped in the car but it seemed to be running OK so I drove it up there with the MIL lit. Drove fine, all systems working, no other faults indicated except the CEL.
Got back and updated the firmware on the OBDLink, ran the ABS initi steps, and was able to clear the code.
It's been to the dealer and they say the batts are OK and blame it on my "aftermarket devices" power draw. I have a dashcam that's wired to IGN+ and BAT+ for parking guard. My Audi has the same setup and can sit for weeks without any issue. I guess I might try to use a solar charge panel on it but it's a shame the truck can't site for 5 days without issues.
I started it from the cab, overriding the diesel preheat for fear the batteries were (has happened before after sitting) unable to start the truck, and the dash lit up like a Christmas tree, flashing and binging, etc.
Pretty much all modules lost communication, all safety features disabled. I unplugged my OBDLink MX+ and stopped/started and re-plugged it. Read and cleared codes for ABS, Engine, BCM. CEL wouldn't go out and still saying ABS module coms fault. Could not get the ABS fault to clear with AlfaOBD, Torque, or OBDLink. I was going to be late picking up the wife at the airport and should have just hopped in the car but it seemed to be running OK so I drove it up there with the MIL lit. Drove fine, all systems working, no other faults indicated except the CEL.
Got back and updated the firmware on the OBDLink, ran the ABS initi steps, and was able to clear the code.
It's been to the dealer and they say the batts are OK and blame it on my "aftermarket devices" power draw. I have a dashcam that's wired to IGN+ and BAT+ for parking guard. My Audi has the same setup and can sit for weeks without any issue. I guess I might try to use a solar charge panel on it but it's a shame the truck can't site for 5 days without issues.
