Intelligent access door opening sensor not working
04-29-2024, 01:04 PM
#51
Update: ran the “on demand self-test” no codes
ran the BdyCM module reboot successfully
ran the “on demand self-test” again no codes
Last edited by Llebaro1; 04-29-2024 at 01:31 PM. Reason: Update
04-29-2024, 01:34 PM
#52
As you found out, there is not a fuse dedicated to the passive entry system. You said you reset the BCM, but did you run a self-test?
Edit - It bothers me that none of the antennae appear to be working. Each antenna has its own circuit within the BCM so I would think that a single antenna failure should trip a DTC but the others should still work. Can you open the tailgate from the button? If so, the tailgate antenna is working.
Edit - It bothers me that none of the antennae appear to be working. Each antenna has its own circuit within the BCM so I would think that a single antenna failure should trip a DTC but the others should still work. Can you open the tailgate from the button? If so, the tailgate antenna is working.
edit: could it be as simple as the truck battery going bad but not showing bad yet?
Last edited by Llebaro1; 04-29-2024 at 01:42 PM.
04-29-2024, 01:43 PM
#53
Senior Member
That is not what I wanted to know. Can you open it from the button switch on the tailgate? The fob uses a different system to communicate with the BCM using the RTM (Radio Transceiver Module) mounted in the rear of the roof. It does not surprise me at all that you can open the tailgate with the fob since you can lock/unlock the doors and remote start with the fob. The RTM is obviously working properly.
04-29-2024, 01:44 PM
#54
That is not what I wanted to know. Can you open it from the button switch on the tailgate? The fob uses a different system to communicate with the BCM using the RTM (Radio Transceiver Module) mounted in the rear of the roof. It does not surprise me at all that you can open the tailgate with the fob since you can lock/unlock the doors and remote start with the fob. The RTM is obviously working properly.
Update: the frequency in my RTM says incorrect or not configured. If I edit it I can choose 868Mhz or 434Mhz.
Update 2: switched out the battery on Costco warranty for a brand new one. Installed and rest the BMS. Still have the same issue.
Last edited by Llebaro1; 04-30-2024 at 03:55 PM. Reason: Update
05-06-2024, 01:06 PM
#55
Update
ahh I see my bad. No I cannot open the tailgate by pressing the button on the tailgate with the key in my pocket.
Update: the frequency in my RTM says incorrect or not configured. If I edit it I can choose 868Mhz or 434Mhz.
Update 2: switched out the battery on Costco warranty for a brand new one. Installed and rest the BMS. Still have the same issue.
Update: the frequency in my RTM says incorrect or not configured. If I edit it I can choose 868Mhz or 434Mhz.
Update 2: switched out the battery on Costco warranty for a brand new one. Installed and rest the BMS. Still have the same issue.
Found some audio wires from the previous owner sub setup I believe. Any chance this could be causing the issues?
05-06-2024, 01:27 PM
#56
Update
im thinking to maybe replace the transceiver in the headliner. Any input/help is appreciated.