Ford
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    2 to 3 Shift Error Conditions
Cause:
    Engine running in gear with VSS signals received, then the PCM detected that the engine speed (rpm) did not drop during the transmission 2-3 up-shift event

Generic
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    2-3 Shift

GM
Type:
    Powertrain - Transmission - ISO/SAE Controlled
Description:
    Transaxle Shift Solenoid 3 Performance Conditions
Cause:
    Engine running with 1st gear commanded on, no noise detected on TSS or VSS signals, VSS over 3 mph, TSS over 224 rpm, speed ratio across the torque converter less than 180, calculated engine load value over 20%, then the PCM detected twice that the ratio of TSS to VSS equaled that of the 3rd gear input, conditions met for over 3 seconds