Ford
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    DTR or TR Sensor Circuit High Conditions
Cause:
    Engine running, then the PCM detected that the DTR or TR sensor signal was over its minimum

Generic
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    Transmission Range Sensor "A" Circuit High

GM
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    Transaxle Switch Circuit High Conditions
Cause:
    Engine running, then the PCM detected that all input bits equaled 12v with no switch circuits pulled low, condition met for 500 ms