DTC P0B91 Chevrolet

Cause and Solution

The TCCM has a predefined range in which the encoder feedback should stay within, which is 0.5-4.5 volts. The DTC sets if the encoder signal feedback falls out of this range.The fault must remain current for 30 seconds.The TCCM has a predefined range of 0.0-5.0 V in which the encoder feed back should stay within. The DTC sets if the encoder signal feed back falls out of this range.