Question

Left and right rear wheel speed sensor malfunction on 2006 Hummer H3. What is likely the problem?

Answer 1

C0050 Right rear wheel speed sensor 12 volt refernce

C0045 Left rear wheel speed sensor 12 volts reference

The wheel speed sensor recives a 12 volts from the EBCM (electronic brake control module)

This can be from a open 12 volt wire to the wheel speed sensor, you will need to test for 12 volt power to the wheel speed sensor , If the wire test good and there is the 12 volts replace the wheels speed sensor, if it persist you replace the ECBM.What is likely the problem ? Majority of the time its the ECBM.