GF40.15-P-0001-04TA Tire Pressure Monitor (TPM), Messages Relevant to the Function

GF40.15-P-0001-04TA Tire pressure monitor (TPM), messages relevant to the function
- 211 up to 31.5.04
- with CODE (475) Tire pressure indicator


Messages relevant to the function in the multifunction display (A1p13) of the instrument cluster (A1), show the driver a system status in which no current tire pressures and also no messages relevant to operation can be displayed.

Message relevant to the function are divided into:
^ System fault(s)
^ System messages

System faults are stored in the TPM [RDK] control unit (N88) with a fault code and system messages with an event code.

System messages describe a regular operating condition and in the case of a fault there is no reason to exchange system components.

The following messages relevant to the function can occur:





System fault(s)
This message ensues in the event of faults in the CAN data bus or in the event of a failure of a system component or at least 1 wheel is fitted without wheel electronics. A corresponding fault code is stored in the TPM control unit (N88).





System fault(s)
This message is output by the instrument cluster (A1) when it does not receive any CAN messages from the TPM [RDK] control unit (N88) or the instrument cluster (A1) itself is faulty. In addition this message appears in the event of cable discontinuities or a connector which has fallen off the TPM [RDK] control unit (N88).

The adjacent message ensues if the TPM [RDK] control unit (N88) is unplugged and then plugged in again when the ignition is ON.





System message

This system message appears once the system is activated. This is necessary for changes in tire inflation pressure, a tire change or wheel change.

Activation is possible when the ignition is ON or the engine is running.





System message

Request for system activation.

This system message is displayed if:
^ The tire inflation pressure is more than 0.3 bar above the stored specified pressure
^ The TPM [RDK] control unit (N88) has been replaced.
^ A red message, relevant to operation, has been displayed in the previous ignition sequences.

This system message is also displayed for approx. 30 seconds each time the vehicle is restarted, as soon as in the TPM [RDK] control unit (N88) the monitoring function has been set to "Not active".





System message
This system message is activated for the following criteria:
^ At least 1 new wheel sensor is fitted and is currently taught in.
^ An external interference transmitter hinders data transfer.
^ Temperature of at least one wheel sensor > 120 degrees C.
^ At least 1 additional wheel sensor is in the vehicle (e.g. winter wheels in luggage compartment).





System message
The pressure values are only shown following activation, once the system has detected a clear assignment. Until the teach-in process is ended (total driving time max. 10 minutes) only the adjacent system message is displayed instead of the pressure values.