Description of Frozen Values, ICM

Description of frozen values

Explanation
Not all the parameters described need to be implemented in the control module. This varies from system to system.
Frozen values are parameter values that are stored when a diagnostic trouble code (DTC) is stored.

Hint: Frozen values are stored the first time a diagnostic trouble code (DTC) is generated. Because of this, intermittent open-circuits on the MOST network may be hard to diagnose.

Battery voltage, value
Measurement range: 0 - 30 V.
Normal value when the generator (GEN) is charging: 13.0-14.5 V.
The voltage value at the Central Electronic Module (CEM).

Distance, value
Measurement range: 0-1048575 km.
The value indicates the total mileage of the car at the time the diagnostic trouble code (DTC) was stored.

Passenger compartment temperature, value
Measurement range -60 - 195 °C.
The driver information module (DIM) obtains the value via CAN.

Outside temperature, value
Measurement range -128 - 127.75 °C.
The driver information module (DIM) obtains the value via CAN.

Engine running, status
The status displays whether the engine was running when the diagnostic trouble code (DTC) was stored.
No = the engine was not running
Yes = the engine was running

Time, value
The value displays the time that has passed since the diagnostic trouble code (DTC) was stored.

CAN communication, status
The status indicates the control modules in the Control area network (CAN) which were communicating when the diagnostic trouble code (DTC) was stored.

30 supply, value
Measurement range: 0 - 50 V
The value indicates the power supply to the Infotainment control module (ICM) when the diagnostic trouble code was stored.


5V supply, value
Measurement range: 0 - 10 V
Normal range: 4.5 - 5.5 V
The value indicates the internal power supply in the Infotainment control module (ICM) when the diagnostic trouble code was stored.

Ring break diagnostic, status
The status indicates the MOST network status when the Diagnostic Trouble Code (DTC) was stored.
The status is stored in the first event of a Diagnostic Trouble Code (DTC) being stored. If the fault is intermittent, the Diagnostic Trouble Code (DTC) can be stored on several occasions but the value freezes only on the first occasion. Intermittent open-circuit on the MOST network can be difficult to diagnose due to this.
OK = MOST network OK.
Open-circuit location = Indicates the location of the open-circuit in the MOST network.

MOST locked, status
The status indicates whether the MOST network was closed when the diagnostic trouble code (DTC) was stored.
No = The MOST network was not closed and communication was not possible.
Yes = The MOST network was closed and communication was possible.

Input signal from the button circuit, value
Measurement range: 0 - 1023 V
The value indicates the voltage in the button circuit when the diagnostic trouble code (DTC) was stored.
- Left button circuit 1 (AM/FM, CD, |<<, >>|)
- Left button circuit 2 (*, 7, 4, 1)
- Left button circuit 3 (0, 8; 5, 2)
- Left button circuit 4 (#, 9, 6, 3)
- Right button circuit 1 (MY KEY, ENTER, PHONE, EXIT)
- Right button circuit 2 (Up, Down, CD eject)
- Right button circuit 5 ( SOUND)
- Button circuit for POWER.

VOLUME and SELECTOR switches, status
The status indicates the position of the switches in the controls VOLUME and SELECTOR.
- Open
- Closed