Tire pressure monitor (TPM [RDK]) messages - GF40.15-P-0001-08CW

The tire pressure monitor (TPM [RDK]) system messages are shown in the multifunction display (A1p13) of the instrument cluster (A1). A differentiation is made here between:

Information messages and
Warning messages

Warning messages can be called up in the instrument cluster using the tire pressure monitor menu.

The warning messages appear automatically.

Depending on the warning message the tire pressure monitor warning lamp (A1e66) is also actuated.

Information message 1

The TPM [RDK] system is not available until circuit 15 ON.

Fig 1: Display TPM [RDK] System Is Not Available

Courtesy of MERCEDES-BENZ USA

Information message 2

The TPM [RDK] system is nonfunctional. Possible causes are:

Instrument cluster unable to receive valid CAN signals from tire pressure monitor control unit (N88)
Tire pressure monitor control unit nonfunctional:

Shutoff because of malfunction
Failure of left front tire pressure sensor (A69/1), right front tire pressure sensor (A69/2), left rear tire pressure sensor (A69/3) or right rear tire pressure sensor (A69/4) because of excess temperature

Fig 2: Display Tyre Press. Monitor Inoperative

Courtesy of MERCEDES-BENZ USA

Information message 3

TPM [RDK] system in diagnosis mode.

Fig 3: Display TPM [RDK] System In Diagnosis Mode

Courtesy of MERCEDES-BENZ USA

Information message 4

TPM [RDK] system in normal status.

Fig 4: Display Tyre Pressure Monitor Active

Courtesy of MERCEDES-BENZ USA

Information message 5

TPM [RDK] system unable to receive signals from tire pressure sensors. Possible reasons: Wheel fitted without tire pressure sensor.

Fig 5: Display Tyre Press. Monitor Inoperative

Courtesy of MERCEDES-BENZ USA

Information message 6

Display before manual reactivation.

Fig 6: Display Before Manual Reactivation

Courtesy of MERCEDES-BENZ USA

Warning message 1

The TPM [RDK] system is nonfunctional. Possible causes are:

Instrument cluster unable to receive valid CAN signals from tire pressure monitor control unit
Tire pressure monitor control unit nonfunctional: - Shutoff because of malfunction

The tire pressure monitor warning lamp flashes on and off for t = 60 s and then stays on permanently.

Fig 7: Display Warning Meassage - TPM(RDK) System Is Non Functional

Courtesy of MERCEDES-BENZ USA

Warning message 2

Major loss of pressure detected in a tire.

The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.

Fig 8: Display Warning Meassage For Major Pressure Loss Of Tire

Courtesy of MERCEDES-BENZ USA

Warning message 3

Rapid loss of pressure in a tire.

The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.

Fig 9: Display Warning Meassage For Rapid Pressure Loss Of Tire

Courtesy of MERCEDES-BENZ USA

Warning message 4

The tire pressure monitor control unit is unable to receive signals from the tire pressure sensors. Possible reasons: Wheel fitted without tire pressure sensor.

The tire pressure monitor warning lamp flashes on and off for t = 60 s and then stays on permanently.

Fig 10: Display Warning Message - Tire Pressure Monitor Inoperative

Courtesy of MERCEDES-BENZ USA

Warning message 5

The TPM [RDK] system is temporarily inactive because of transmission interference or because the voltage is too high/low.

The tire pressure monitor warning lamp flashes on and off for t = 60 s and then stays on permanently.

Fig 11: Display Warning Message For TPM System Inactive

Courtesy of MERCEDES-BENZ USA

Warning message 6

Operation feedback after manual reactivation.

Fig 12: Display Warning Message Operation Feedback After Manual Reactivation

Courtesy of MERCEDES-BENZ USA

Warning message 7

Request for pressure correction.

Fig 13: Display Warning Message For Pressure Correction Request

Courtesy of MERCEDES-BENZ USA