GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    TCC Release Switch Circuit Conditions
Cause:
    DTC P0716, P0717, P0741, P0742 and P1810 not set, engine speed over 500 rpm, TR switch in D4, TCC commanded on, TCC slip speed is -20 to +40, then the PCM detected that TCC Release pressure was present (the switch is open)