Parameter Identification (PID) Chart
Diagnostic PID Chart
| PID Acronym | PID Name | Description |
|---|---|---|
| APP1 | APP sensor 1 | APP |
| AST | Time Since Start | Time (in seconds) since the vehicle was started |
| CLRDIST | Distance since DTC cleared | Distance driven since PCM Diagnostic Trouble Codes (DTCs) were cleared |
| DTC PCM | Continuous Codes | Number of PCM Diagnostic Trouble Codes (DTCs) present |
| ECT PCM | ECTPCM | Engine coolant temperature data provided to the PCM |
| ENGLOAD | Engine Load | Engine load calculated by PCM |
| GEAR | Gear Commanded by Module | PCM commanded transmission gear |
| GEAR_OSC# | Gear Commanded by Output State Control | Output state control commanded gear |
| GEAR_RAT | Gear Ratio Commanded | Theoretical transmission gear ratio commanded |
| HRSH_SHFT# | Firm Shift | Output state control commanded firm shift |
| LINEDSD# | Line Pressure Control Desired | Commanded line pressure |
| LPC | Line Pressure Control | Commanded pressure for the Line Pressure Control (LPC) Variable Force Solenoid (VFS) |
| LPC_AMP | Line Pressure Control in Amps | Commanded current for the Line Pressure Control (LPC) Variable Force Solenoid (VFS) |
| LPC_F | Line Pressure Control Status | Fault status for the Line Pressure Control (LPC) Variable Force Solenoid (VFS) |
| MIL_DIS | The distance travelled since the (MIL) was activated | The distance travelled since the MIL was activated |
| OSS_F | Output Shaft Speed Reliable | Fault status for the OSS sensor |
| OSS_SRC | Unfiltered Output Shaft Speed A | Actual speed of the OSS sensor (rpm) |
| RPM_PCM | Engine Revolutions Per Minute | Engine rpm input to PCM |
| SHFT_DROP | Shift RPM Drop in Input Shaft Speed Below Expected | Shift rpm drop in input shaft speed below expected |
| SHFT_FLRE | Shift RPM Rise in Input Shaft Speed Above Expected | Shift rpm rise in input shaft speed above expected |
| SHFT_ID | Shift Identification of Shift (PID)s Lag, Time, Flare and Drop | Shift identification of shift Parameter Identifications (PIDs) lag, time, flare and drop |
| SHFT_LAG | Shift Time Elapsed From 10% to 90% of Complete | Actual time during shift between 10% and 90% complete |
| SHFT_TIME | Shift Time Elapsed From Commanded to 10% Complete | Shift time 0% to 10% complete |
| SHFT_TYP | Shift Type | Shift Type |
| SSPCA | Shift Solenoid Pressure Control A | Commanded pressure for the Shift Solenoid Pressure Control A (SSPCA)/CB1234 |
| SSA_AMP# | Shift Solenoid Pressure Control A | Commanded current for the Shift Solenoid Pressure Control A (SSPCA)/CB1234 |
| SSPCA_F | (SSPCA) Status | Fault status for the Shift Solenoid Pressure Control A (SSPCA)/CB1234 |
| SSPCB | Shift Solenoid Pressure Control B | Commanded pressure for the Shift Solenoid Pressure Control B (SSPCB)/C35R |
| SSB_AMP# | Shift Solenoid Pressure Control B | Commanded current for the Shift Solenoid Pressure Control B (SSPCB)/C35R |
| SSPCB_F | (SSPCB) Status | Fault status for the Shift Solenoid Pressure Control B (SSPCB)/C35R |
| SSPCC | Shift Solenoid Pressure Control C | Commanded pressure for the Shift Solenoid Pressure Control C (SSPCC)/CB26 |
| SSC_AMP# | Shift Solenoid Pressure Control C | Commanded current for the Shift Solenoid Pressure Control C (SSPCC)/CB26 |
| SSPCC_F | (SSPCC) Status | Fault status for the Shift Solenoid Pressure Control C (SSPCC)/CB26 |
| SSPCD | Shift Solenoid Pressure Control D | Commanded pressure for the Shift Solenoid Pressure Control D (SSPCD)/CBLR, C456 |
| SSD_AMP# | Shift Solenoid Pressure Control D | Commanded current for the Shift Solenoid Pressure Control D (SSPCD)/CBLR, C456 |
| SSPCD_F | (SSPCD) Status | Fault status for the Shift Solenoid Pressure Control D (SSPCD)/CBLR, C456 |
| SSPCE# | Shift Solenoid Pressure Control E | Commanded pressure for the Shift Solenoid Pressure Control E (SSPCE)/CBLR, C456 |
| SSE_AMP | Shift Solenoid Pressure Control E | Commanded current for the Shift Solenoid Pressure Control E (SSPCE)/CBLR, C456 |
| SSPCE_F | (SSPCE) Status | Fault status for the Shift Solenoid Pressure Control E (SSPCE)/CBLR, C456 |
| SST_D | Select Shift Transmission - Down Switch Input | SelectShift™ transmission-down switch input |
| SST_U | Select Shift Transmission - Up Switch Input | SelectShift™ transmission-up switch input |
| TCC AMP | Converter Pressure Control | Commanded current for the TCC |
| TC_SLIPACT | Torque Converter Slip Actual | Actual difference between engine speed and turbine speed, measured in rpm |
| TC_SLIPDSD | Torque Converter Slip Desired | PCM commanded difference between engine speed and turbine speed, measured in rpm |
| TCC | Torque Converter Clutch Solenoid | Commanded pressure for the TCC |
| TCC_F | Torque Converter Clutch Pressure Control Fault | Fault status for the TCC |
| TCC_OSC# | Output State Control of Torque Converter | Output state control commanded pressure to the TCC |
| TCC_RAT | Torque Slip Ratio | Actual speed ratio of torque converter (1.0 = fully engaged) |
| TCS_DEPRES | Transmission Control Switch Pressed | TCS status |
| TCS_STATE | Transmission Control Switch Requested State | TCS status |
| TFT | Transmission Fluid Temperature | TFT |
| TFT_F | Transmission Fluid Temperature Status | Fault status for TFT sensor |
| TFTV | Transmission Fluid Temperature | TFT voltage |
| TR | Transmission Range | TR |
| TR_CRANK | Transmission Range Input Allowing Engine Start | TR |
| TR_F | Transmission Range Status | Fault status for TR sensor |
| TRAN_RAT | Gear Ratio Measured | Actual transmission gear ratio |
| TRANS_VOLT_A | Transmission Supply Voltage Control State | Transmission supply voltage |
| TRO_N_F | Neutral Output Status | Transmission neutral output status |
| TRO_P_F | Park Output Status | Transmission park output status |
| TSS_F | Turbine Shaft Speed Reliable | Fault status of the TSS sensor (rpm) |
| TSS_SRC | Unfiltered Turbine Shaft Speed | Actual speed of the TSS sensor (rpm) |
| VPWR_PCM | Module supply voltage | PCM supply voltage |
| VSS | Vehicle Speed | Vehicle Speed |
Output State Control Enabling Criteria
Retrieve the continuous codes, carry out a KOEO and KOER on-demand self test before using output state control. Any DTCs related to the TR sensor, TSS sensor or OSS sensor must be fixed or the PCM won't allow output state control to operate.
SSA_AMP#, SSB_AMP#, SSC_AMP#, SSD_AMP#, SSE_AMP#, TCC_AMP#
- Current to individual shift solenoids can be commanded when carrying out an electrical circuit check. To enable OSC, the:
- * TR must be either PARK or NEUTRAL
- * KOEO or KOER with engine at idle (APP1 = 0%)
LINE_DSD#
- Line pressure in the transmission can be commanded higher or lower while monitoring the actual line pressure on a gauge. To enable OSC, the:
- * TR must be either PARK or NEUTRAL
- * KOER with engine idle greater than 1000 RPM (APP1 = 0%)
GEAR_OSC#
- Individual gears can be commanded by using GEAR_OSC# while road testing the vehicle. The functionality is similar to using the Select Shift +/- button on vehicles equipped with Select Shift. The PCM/TCM cannot command certain gears if the engine speed/vehicle speed combination could result in engine damage. To enable OSC, the:
- * TR must be in DRIVE
- * VSS greater than 10 km/h (6 mph).
TCC_OSC#
- Some vehicle concerns may be more pronounced when the torque converter clutch is applied or released. For example, minor cylinder misfires may not be felt during a road test until the additional load of the torque converter clutch is applied. To enable OSC, the:
- * TR must be in DRIVE
- * Engine RPM greater than 1200
- * GEAR equal to 3, 4, 5, or 6
- * VSS greater than 3 km/h (2 mph)
- * BPP = OFF
- * TFT between 15 °C (60 °) to 115 °C (240 °F)
HRSH_SHFT#
- Some transmission concerns may be identified by temporarily increasing pressure during a shift event. To enable OSC the:
- * TR must be in Park, Rev, N or DRIVE
- * Won't work in M, 2, 1