Freeze Frame Data: Description
Freeze frame data allows access to emission-related values from specific generic parameter identification (PIDs). These values are stored the instant an emission-related diagnostic trouble code (DTC) is stored in continuous memory. This provides a snapshot of the conditions that were present when the DTC was stored. Once one set of freeze frame data is stored, this data remains in memory even if another emission-related DTC is stored. When a DTC associated with the freeze frame is erased, the freeze frame data is also erased, and new freeze frame data can be stored. In the event of multiple emission-related DTCs in memory, always note the DTC for the freeze frame data.
FREEZE FRAME DATA REFERENCE CHART
| Acronym | Description | Measurement Units |
|---|---|---|
| AAT | Ambient Air Temperature | °C/°F |
| APP1_D | Accelerator Pedal Position D | Percent |
| APP2_E | Accelerator Pedal Position E | Percent |
| BARO | Barometric Pressure | Pressure/kPa/psi |
| CACT11 | Charge Air Cooler Temperature Bank 1, Sensor 1 | Temperature °C/°F |
| DPF_LOAD_PCT | DPF Percentage Load Inferred | Percent |
| DPF_REGN_AVGD | Average Distance Between DPF Regenerations | km/miles |
| DPF_REGN_STAT | Diesel Particulate Filter Regeneration Status | Active/Inactive |
| DPF_SOOT_INF | Diesel Particulate Filter Soot Concentration Inferred | Grams/Liter |
| DPF1_INP | Diesel Particulate Filter Bank 1 Inlet Pressure | Pressure/kPa/psi |
| EBP1 | Exhaust Pressure Sensor 1 | Pressure/kPa/psi |
| ECT1 | Engine Coolant Temperature Sensor 1 | Temperature °C/°F |
| ECT2 | Engine Coolant Temperature Sensor 2 | Temperature °C/°F |
| EGR_A_CMD | Commanded Exhaust Gas Recirculation A Duty Cycle or Position | Percent |
| EGR_A_ERR | Exhaust Gas Recirculation A Error | Percent |
| EGRTP_V | Exhaust Gas Recirculation Throttle Position | Voltage |
| EGRT11 | Exhaust Gas Recirculation Temperature Bank 1, Sensor 1 | Temperature °C/°F |
| EGRTP_CMD | Exhaust Gas Recirculation Throttle Position Commanded | Percent |
| EGT11 | Exhaust Gas Temperature 11 | Temperature °C/°F |
| EGT12 | Exhaust Gas Temperature 12 | Temperature °C/°F |
| EGT13 | Exhaust Gas Temperature 13 | Temperature °C/°F |
| EGT14 | Exhaust Gas Temperature 14 | Temperature °C/°F |
| EOT | Engine Oil Temperature | Temperature °C/°F |
| FLI | Fuel Level Input | Percent |
| FRP_A | Fuel Rail Pressure A | Pressure/kPa/MPa/psi |
| FRP_A_CMD | Commanded Fuel Rail Pressure A | Pressure/kPa/MPa/psi |
| FRT_A | Fuel Rail Temperature A | Temperature °C/°F |
| FUEL_RATE | Engine Fuel Rate | ml/min/lmin |
| FUEL_TIMING | Main Injection Timing Relative to TDC | Angle |
| GPL | Glow Plug Lamp | ON/OFF |
| IAT11 | Intake Air Temperature Bank 1, Sensor 1 | Temperature °C/°F |
| IDLETIME_TOT | Total Idle Run Time | Time |
| LOAD | Engine Load | Percent |
| MAF_A | Mass Air Flow Sensor A | g/s |
| MAP_A | Intake Manifold Absolute Pressure A | Pressure/kPa/psi |
| NOxLMP_TIME | Total Engine Run Time with Nitrogen Oxide Warning Active | Time |
| PTO | Power Take Off Status | ON/OFF |
| PTOTIME_TOT | Total Run Time With Power Take Off Active | Time |
| REDUCT_DMD | Average Reagent Consumption Demanded | ml/min |
| REDUCT_RATE | Average Reagent Consumption | ml/min |
| REDUCT_TNK_LVL | Reagent Tank Level | Percent |
| RPM | Engine Revolutions Per Minute | RPM |
| RUNTIME_TOT | Total Engine Run Time | Time |
| RUNTM | Engine Run Time | Time |
| TQ_ACT | Calculated Torque Output of the Engine | Percent |
| TQ_DD | Requested Torque Output of the Engine by Driver | Percent |
| TQ_ENGREF | Engine Reference Torque | Nm |
| VGT_A_CMD | Commanded Variable Geometry Turbo A Position | Percent |
| VPWR | Module Supply Voltage | Voltage |
| VS | Vehicle Speed | km/h/mph |
| WGT_A_CMD | Wastegate A Commanded | Percent |