The codes refer to mode actuator faults.
2003 chevy silverado mode door actuator replacement.
Remove the mode actuator as an assembly with the actuator cam.
Air door actuator replaces 15 73952 52495593 89018374 604 112 compatible with chevy gmc cadillac hummer 2003 2014 models hvac blend control actuator air heater blend door 4 6 out of 5 stars 368.
But try pulling fuse first for hvac sometimes it resets the actuators.
Sparkys answers 2003 chevrolet silverado changing the mode actuator code b0263.
You can get an oem replacement actuator from amazon for what the garages pay for them in most cases.
There were codes b0263 and b3770 stored in the hvac module.
You will need a tool set including an 5 5 mm socket for chevy gmc cadillac ford and lincoln vehicles.
There is a replacement mode or blend actuator available at most auto parts stores dorman part 604 107 price 39 99.
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The mode door actuator is on the left and the resirc door actuator is at the top of the dash near the windshield.
The mode actuator is on passenger side.
Move the seat back as far as you can helps to get in there.
Equip cars trucks suvs with 2003 chevrolet silverado 1500 a c heater blend door actuator from autozone.
If you look under the dash from the driver s side you will see the mode actuator.