MikoS
Junior Member
I've only recently joined the wonderful world of Hemi's, and so this is my first post. I have a 2016 Hemi SLT which has 3 error codes that AlfaOBD picks up and I cannot get rid of. My concern is that they may all be caused by some common hidden problem and not actually be three separate problems.
I should mention that I bought it wrecked, and although the damage was slight, the seat and side curtain airbags had deployed. I replaced those and had the Airbag module reset by Safety Restore Inc. However the Airbag light does come on occasionally and AlfaOBD picks up the code B21DD - 'System Voltage below Threshold' See screenshot below. As I see it this is the entire airbag system that has low voltage? Not just any one single airbag problem...? This code cannot be cleared although the Airbag light itself is only on occasionally. Like once or twice per month max.
The second code is B16D7 - 'Left Taillamp 1 Control short circuit to + battery/open circuit' I have replaced the bulb and inspected the wiring harness but can find no breaks or damage. I can clear this code but it will come back within 30 miles or so.
The third code is P0111 - 'Intake Air Temp Sensor 1 Circuit performance' I have replaced this IAT sensor and also run bench tests and the ohm readings etc are spot on. I read that this error can be caused by an out of range difference between it and the coolant Temp sensor. So I checked out the coolant sensor and it too checks out fine on a bench test. I can clear this code but it will come back within 30 miles or so.
Apologies that I've written such a lot but I felt to put out all the problems in case they are connected in any way.
I'm hoping that one of you Hemi guru's can offer some advice!
Thanks in advance!
MikoS
I should mention that I bought it wrecked, and although the damage was slight, the seat and side curtain airbags had deployed. I replaced those and had the Airbag module reset by Safety Restore Inc. However the Airbag light does come on occasionally and AlfaOBD picks up the code B21DD - 'System Voltage below Threshold' See screenshot below. As I see it this is the entire airbag system that has low voltage? Not just any one single airbag problem...? This code cannot be cleared although the Airbag light itself is only on occasionally. Like once or twice per month max.
The second code is B16D7 - 'Left Taillamp 1 Control short circuit to + battery/open circuit' I have replaced the bulb and inspected the wiring harness but can find no breaks or damage. I can clear this code but it will come back within 30 miles or so.
The third code is P0111 - 'Intake Air Temp Sensor 1 Circuit performance' I have replaced this IAT sensor and also run bench tests and the ohm readings etc are spot on. I read that this error can be caused by an out of range difference between it and the coolant Temp sensor. So I checked out the coolant sensor and it too checks out fine on a bench test. I can clear this code but it will come back within 30 miles or so.
Apologies that I've written such a lot but I felt to put out all the problems in case they are connected in any way.
I'm hoping that one of you Hemi guru's can offer some advice!
Thanks in advance!
MikoS
Last edited: