Description of Frozen Values, PHM

Description of frozen values

Explanation

Frozen values are parameter values that are stored when a diagnostic trouble code (DTC) is stored.
Not all parameters can be read off for all diagnostic trouble codes (DTCs). The parameter values can only be read off where they can provide more information about the prevailing circumstances when the diagnostic trouble code (DTC) was stored.

Parameters, value

Global time
The value shows the actual time in minutes when the diagnostic trouble code was generated. The Phone module (PHM) obtains the value from the central electronic module (CEM) via the controller area network (CAN).

Total mileage (km/miles)
The value indicates the total distance the vehicle had travelled when the diagnostic trouble code was generated. The Phone module (PHM) receives the value from the central electronic module (CEM) via the CAN network.

MECU power supply
Measurement range 0 - 63 V.
Normal range: 12.0 - 14.5 V.
The value indicates the supply voltage to the central electronic module (CEM) when the diagnostic trouble code (DTC) was stored.

Passenger compartment temperature
Measurement range: -40 to +215 °C.
The value indicates the passenger compartment temperature when the diagnostic trouble code (DTC) was stored.

Engine running
Indicates whether the engine was running when the Diagnostic Trouble Code (DTC) was generated.
No = engine was not running.
Yes = engine was running.