Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Non-Emission Related Freeze Frame Data
Freeze frame data allows access to non-emission related values from specific manufacturer's PIDs. These values are stored when a non-emission related 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 DTC is stored. When a DTC associated with the freeze frame data is cleared or a KAM reset is carried out, new freeze frame data can be stored again.
NON-EMISSION FREEZE FRAME DATA TABLE
| Acronym | Description | Measurement Units |
|---|---|---|
| FRZ_DTC | Frozen DTC detailed number | DECIMAL |
| RPM | Engine speed | RPM |
| TFT | Transaxle fluid temperature | DEGREES |
| M_SPEED | Traction motor speed | RPM |
| G_INV_V | Generator inverter voltage | VOLTS |
| M_PHTMP | The highest traction motor inverter temperature within the 3 phases | DEGREES |
| MCLTEMP | Traction motor coil temperature | DEGREES |
| G_PHTMP | The highest generator motor inverter temperature within the 3 phases | |
| GCLTEMP | Generator motor coil temperature | DEGREES |
| G_SPEED | Generator motor speed | RPM |
| TQ_DSD | Desired Total torque | NM |
| MTQ_CMD | Desired traction motor torque | NM |
| GTQ_OUT | Desired generator motor torque | NM |
| CONTACT | High voltage traction battery contractor status TCM received | Open/Closed |
| G_SDN_A | Generator motor shutdown TCM received | ShutDwn/Not ShutDwn |
| G_SDN_B | Generator motor shutdown TCM received | ShutDwn/Not ShutDwn |
| G_SDN_C | Generator motor shutdown TCM received | ShutDwn/Not ShutDwn |
| M_SDN_A | Traction Motor Shutdown TCM Received | ShutDwn/Not ShutDwn |
| M_SDN_B | Traction Motor Shutdown TCM Received | ShutDwn/Not ShutDwn |
| M_SDN_C | Traction Motor Shutdown TCM Received | ShutDwn/Not ShutDwn |
| HVINTLCK | High voltage interlock circuit status | ON/OFF |
| TCM_HAZ | Hazard indicator commanded | ON/OFF |
| TCM_CAU | Powertrain malfunction indicator (wrench) commanded | ON/OFF |
| PRNDL_T | Gear selector position TCM received | Selector position |
| MECT | Motor electronics coolant temperature TCM received | DEGREES |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.