Tire pressure monitor (TPM [RDK]) messages - GF40.15-P-0001-08G
The messages from the tire pressure monitor (TPM) system are displayed in the multifunction display (A1p13) of the instrument cluster (A1).
A distinction is made between the following:
- Information messages and
- Warning messages
Information message 1
The TPM [RDK] system is not available until circuit 15 ON.
Warning messages can be called up in the instrument cluster using the tire pressure monitor menu.
The warning messages appear automatically.
Information message 2
The TPM [RDK] system is nonfunctional. Possible causes are:
- The instrument cluster does not receive any valid signals from the tire pressure monitor control unit (N88) via the interior CAN
- Tire pressure monitor control unit nonfunctional:
- Shutoff because of malfunction
- The interior CAN is interrupted
Information message 3
The tire pressure monitoring system waits for tire inflation pressure signal. Possible causes are:
- After terminal 15 On current tire inflation pressure values from the tire pressure sensors (A69/1, A69/2, A69/3 and A69/4) are still not available
- New wheels have been detected, no position identification is known
Information message 4
TPM [RDK] system unable to receive signals from tire pressure sensors. Possible reasons: Wheel fitted without tire pressure sensor.
Information message 5
The tire pressure monitoring system has been reactivated.
Warning message 1
In the preceding ignition sequence the tire pressure monitoring system has detected a slight pressure loss of p = 0.25 bar.
The tire air pressure correction due is referred to after terminal 15 Off.
The warning is displayed without the position being specified.
Warning message 2
The tire pressure monitoring system has detected a tire pressure loss and assigned the corresponding wheel.
A warning tone is output
Warning message 3
The tire pressure monitoring system has detected a tire pressure loss and the wheel position is not assigned.
A warning tone is output
Warning message 4
The tire pressure monitoring system has detected a rapid tire pressure loss and assigned the corresponding wheel.
A warning tone is output
Warning message 5
The tire pressure monitoring system has detected a rapid tire pressure loss and the wheel position is not assigned.
A warning tone is output
Warning message 6
The tire pressure monitoring system has detected filling of the tire, but the new tire air pressure values are implausible. The previous warning thresholds are retained.
The message is displayed until a pressure correction or manual reactivation takes place.
Warning message 7
The tire pressure monitoring system is temporarily inactive. Possible causes are:
- Undervoltage or overvoltage
- Interference transmitter
Warning message 8
The tire pressure monitoring system does not detect all the tire pressure sensors. Possible causes:
- Spare tire fitted without tire pressure sensor
- Tire pressure sensor defective
- Tire pressure sensor battery flat
- Excess temperature