Tom44

Got this scary message on my gsf today. The ac/heat was working but the display showed this message. Turned the climate control on/off manually a couple of times and it went away. Anyone else encounter this message on their car? I assume regular 4GS shares the climate control display with the GSF,

mr2dave

That is a new one on me...

lobuxracer

iTrader: (2)

There's an LSB for the HVAC in the 2016 and 2017 models. L-SB-0001-21 HVAC Servo Motor Malfunction. It includes a software update.

Symptoms are:

Uneven temperature or air flow between the vents.
Little or no air flow from the vent(s).
Improper MODE control function.

Potential DTCs for this are:

B1441 – Air Mix Damper Control Servo Motor Circuit (Front Passenger Side Lower Air Mix).
B1442 – Air Inlet Damper Control Servo Motor Circuit.
B1443 – Air Outlet Damper Control Servo Motor Circuit.
B1446 – Air Mix Damper Control Servo Motor Circuit (Driver Side Lower Air Mix).
B1447 – Rear Air Mix Damper Control Servo Motor Circuit.
B1448 – Passenger Side Face Servo Motor Circuit.
B1449 – Rear Air Outlet Damper Control Servo Motor Circuit.
B1453 – Driver Side Air Outlet Damper COOL Control Servo Motor Circuit.
B1454 – Passenger Side Air Outlet Damper COOL Control Servo Motor Circuit.
B1455 – Driver Side Air Outlet Damper FOOT/DEF Control Servo Motor Circuit