Using Output State Control and Monitoring PIDs
To confirm that the output state control command was sent by the scan tool and the PCM has accepted the output state control command, a corresponding PID for each output state control parameter must be monitored. After sending the output state control command, the corresponding PID value should be the same as the output state control command. Additional PIDs should be monitored to help the technician accurately diagnose the transmission. The following is a list of PIDs to monitor while using output state control.
| PID Name | PID Description | Units |
|---|---|---|
| APP | Accelerator Pedal Position | Percentage |
| BPA | Brake Pedal Applied | On/Off |
| BPP/BOO | Brake Pedal Position/Brake On Off | On/Off |
| GEAR# | GEAR Commanded State (not actual) | Mode |
| GEAR_MAX | Highest Gear Allowed | Number |
| GEAR_OSC | Gear Commanded by Output State Control | Mode |
| GEAR_RAT | Gear Ratio | Ratio |
| LINEDSD# | Line Pressure Control Desired | Pressure |
| OD_CANCL | Overdrive (O/D) Cancel Switch/Hold Switch | Mode |
| OSSFM | Output Shaft Speed (OSS) Failure Mode | Fault |
| OSS_F | OSS Reliable | Fault |
| OSS_SRC | Unfiltered OSS | RPM |
| PCA | Pressure Control Solenoid A (PCA) | Pressure |
| PCAAMP | PCA | Current |
| PCA_F | PCA | Fault |
| PCFM | Pressure Control Failure Mode | Fault |
| RPM# | Engine Revolutions Per Minute | RPM |
| SHIFT_DROP | Shift RPM Drop in Input Shaft Speed Below Expected | RPM |
| SHIFT_FLRE | Shift RPM Rise in Input Shaft Speed Above Expected | RPM |
| SHIFT_ID | Shift Identification of Shift PIDs Lag, Time, Flare and Drop | Number |
| SHIFT_LAG | Shift Time Elapsed from 10% to 90% of Complete | Time |
| SHIFT_TIME | Shift Time Elapsed from Commanded to 10% of Complete | Time |
| SSA/SS1# | Shift Solenoid A (SSA) Commanded State | Mode |
| SSA/SS1_F | SSA Status | Fault |
| SSB/SS2# | Shift Solenoid B (SSB) Commanded State | Mode |
| SSB/SS2_F | SSB Status | Fault |
| TCC | Torque Converter Clutch (TCC) Solenoid Commanded State | Mode, percentage |
| TCCFM | Torque Converter Unlocking Due to Slipping | Fault |
| TCCPC | TCC Pressure Control | Pressure |
| TCC_F | Torque Converter Clutch Fault | Fault |
| TCC_OSC# | Output State Control of TCC | Mode |
| TCC_OT | Transmission Over-Temperature Lockup Mode | Fault |
| TCC_RAT | Transmission Slip Ratio | Ratio |
| TCS | Transmission Control Switch (TCS) | Mode |
| TCSLIP_ABSL | Absolute Value of Slip | RPM |
| TC_SLIPACT | Torque Convertor Slip Actual | RPM |
| TC_SLIPDSD | Torque Convertor Slip Desired | RPM |
| TFT | Transmission Fluid Temperature (TFT) | Voltage, temperature |
| TFT_F | TFT Status | Fault |
| TR | Transmission Range (TR) | Mode |
| TR1 | TR Switch 1 | Mode |
| TR2 | TR Switch 2 | Mode |
| TR3 | TR Switch 3 | Mode |
| TR3_V | TR Switch 3 Volts | Voltage |
| TR4 | TR Switch 4 | Mode |
| TRAN_OT | Transmission Over-Temperature | Fault |
| TRAN_RAT | Transmission Gear Ratio | Ratio |
| TR_F | TR Status | Fault |
| TSS | Turbine Shaft Speed (TSS) Sensor | RPM |
| TSSFM | TSS Sensor Failure Mode | Fault |
| TSS_F | TSS Sensor Reliable | Fault |
| TSS_SRC | Unfiltered TSS Sensor | RPM |
| VPWR | Module Supply Voltage | Voltage |
| VSS | Vehicle Speed Sensor | mph 0-80 |
| VSS_F | Vehicle Speed Sensor Fault | Fault |
| VSS_FM | Vehicle Speed Sensor Signal Status | Fault |