I have codes B0790,B0785 and code B0775 for my 2004 Chevrolet Trailblazer. What do these mean

Question

I want to know what codes b0790,b0785 and b0775 are for 2004 Chevy trailblazer

Answer 1

B0790 Transfer case nuetral indicator circuit malfunction

B0775 Four wheel drive high range (4HI)indicator circuit malfunction

B0785 Two wheel drive high range (2HI) indicator circuit malfunction

Anytime one of these code appears the Service 4WD indicator remains on for the remainder of the ignition cycle.Check the fuse for the FWD fuse. The system monitor the voltage if ieither of the switch is less than 3volts it loggs a DTC. Because this is a "B" code condition it more than likley points to a switch problem if you have a "C" code loged with these codes the transfer shift control would be more suspected , these are just switch code condition

This type of vehicle with  the transfer case there tends to be more transfer case encoder problem and its speed sensor, dealing with the rear speed sensor where the wiring connection tends to fail.

Answer 2

B0775 CHEVROLET - Four Wheel Drive High Range Indicator Circuit
Read more: https://www.autocodes.com/b0775_chevrolet.html

B0785 CHEVROLET - Two Wheel Drive High Range Indicator Circuit
Read more: https://www.autocodes.com/b0785_chevrolet.html

B0790 CHEVROLET - Transfer Case Neutral Indicator Circuit
Read more: https://www.autocodes.com/b0790_chevrolet.html