PCM2 MMI

General Information On The Fault Memory

Fault code setting conditions
Fault codes can be set in several circumstances, e.g.
- battery disconnected.
- plug connections disconnected.
- power failure.

In these circumstances, no fault is present in the system and the fault memory must be erased.

Fault memory Info key F8
In order to be able to assess the fault exactly, the fault memory Info key F8 must be pressed. This information should be saved using the Save key F4 and printed out. If a fault code is stored with "not present" status and no other problems are present, then the fault memory must be erased.

Fault type - Frequency counter/Temperature/Voltage; Speed/Time of occurrence.
Fault type: The following display types are available.
- EEPROM fault.
- Tuner communication fault.
- General communication fault.

Key code: The button which has caused the fault is displayed in plain text.
Frequency counter. When a fault first occurs, a fault entry with the status present is set in the fault memory and the counter is simultaneously set to 50.

If a fault is present, the counter is incremented by one whenever the system is booted. The maximum count is 255.

The counter is decremented if the status fault no longer present is entered and the fault does not occur again when the system is booted. The entry in the fault memory is erased automatically when the counter reaches 0.

If the error occurs again when the counter is between 1 and 49, the counter is reset to 50.

First occurrence (month, day): The date (month and day) on which the fault was first detected is displayed.

Temperature - first occurrence: The value indicates the temperature (temperature sensor in the gateway) at the time the fault occurred. The temperature of the fibre optic transmitter is monitored: max 85 degrees C.

Speed - first occurrence. The value indicates the vehicle speed at the time the fault occurred.

Supply voltage - first The value indicates the voltage at the time the
occurrence. fault occurred.

Hourmeter - first occurrence. The value indicates the operating hours at the time the fault first occurred.

Last occurrence (month, day): The date (month and day) on which the fault was last detected is displayed.

Temperature - last occurrence: The value indicates the temperature (temperature sensor in the gateway) at the time the fault was last detected.

The temperature of the fibre optic transmitter (FOT) is monitored: max 85 degrees C.

Supply voltage - last The value indicates the voltage at the time the fault last occurred.
occurrence.

Hourmeter - last occurrence. The value indicates the operating hours at the time the fault was last detected.