B0770 CHEVROLET – All Wheel Drive Indicator Circuit

 

B0770 CHEVROLET Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B0770 CHEVROLET Possible Causes

 

Faulty Transfer Case Select Switch,Transfer Case Select Switch harness is open or shorted,Transfer Case Select Switch circuit poor electrical connection,Faulty Transfer Case Shift Control Module

 

B0770 CHEVROLET Description

 

The All Wheel Drive (AWD) indicator circuit consists of an indicator lamp feed circuit and an AWD indicator lamp control circuit. When the AWD mode has been selected, current is supplied to the AWD indicator lamp by the indicator lamp feed circuit, traveling through the AWD indicator lamp LED, at which time the transfer case shift control module supplies the ground through the AWD indicator lamp control circuit.