GF40.15-D-0001-05HL Tire Pressure Monitor (TPM), Messages Relevant to Operation

GF40.15-D-0001-05HL Tire Pressure Monitor (TPM), Messages Relevant to Operation

Messages relevant to operation which are shown in the display (A1p1) of the instrument cluster (A1) inform the driver that the air pressure in at least one wheel is changing or has changed. In addition, the RDK indicator lamp (A1e29) is also actuated. Messages relevant to operation are stored in the TPM [RDK] control unit (N88/1) with an event code.

Messages relevant to operation describe a regular operating condition. In the event of a complaint there is no need to exchange system components.

"Soft warning" information message

If the air pressure in one or more wheels drops > 0.25 bar below the specified pressure set by the driver and stored in the TPM [RDK] control unit, this is indicated on the display.

The information message appears for the first time in the next ignition sequence. The driver is then requested to check the tire inflation pressures, if necessary to correct them and to then activate the tire pressure monitor system (RDK) again.

This information message is displayed each time the engine is started if the TPM system is not reactivated.

Warning message "Rapid pressure loss"

"Rapid pressure loss" is detected if a pressure loss of greater than or equal to 0.2 bar is detected in one or more tires over a 60 s period.

While the vehicle is being driven, the RDK indicator lamp in the instrument cluster informs the driver that one or more tires are defective. The driver is requested to bring the vehicle to an immediate stop and to check all tires for signs of ingressed foreign objects. To restore driving safety the tire repair kit TIREFIT may need to be used.

The appropriate wheel sensor must be replaced after the use of a TIREFIT tire repair kit.