GF40.15-P-0001-08FL Tire Pressure Monitor (TPM (RDK)) Messages
GF40.15-P-0001-08FL Tire pressure monitor (TPM [RDK]) messages
- with CODE (475) Tire pressure monitor (Premium) Fa. Schrader
The tire pressure monitor (TPM [RDK]) system messages are shown in the multifunction display (A1p13) of the instrument cluster (A1). Depending on the warning message, the tire pressure monitor warning lamp (A1e66) is also continuously actuated.
On vehicles with code (494) USA version, the tire pressure monitor warning lamp in the instrument cluster will flash for t = 60 s if there is a malfunction in the tire pressure monitoring system. Then it will be actuated permanently.
There is a distinction between the two following types of message on the instrument cluster:
- Menu displays
- Warning messages
The menu displays can be called up in the instrument cluster using the system selection button (S110s3) and using the scroll forward/back button (S110s1) in the left multifunction steering wheel button group (S110) in the service menu and the tire pressure submenu.
Warning messages are issued automatically.
Menu display 1
The TPM [RDK] system is not available until status "Circuit 15 ON".
Menu display 2
Normal condition, display of pressure picture:
- No fault
- Vehicle wheels detected and assigned to positions
- Current pressure signals are available
Manual restart is possible.
Menu display 3
Status picture of TPM system when manually restarted by pressing scroll forward back/button in lower section and then pressing OK button (S110s6).
Menu display 4
Status picture in event of fault, the TPM system is nonfunctional. Possible causes are:
- System shutoff due to fault (diagnosis fault entry) or TPM [RDK] control unit (N88) nonfunctional (shutoff due to malfunction)
- Temporary fault (over voltage/under voltage, radio interference)
- The instrument cluster does not receive any messages from the TPM [RDK] control unit
Menu display 5
Status picture of TPM [RDK] system after ignition restart (Status "Circuit 15 ON"). No high frequency (HF) signals (433 MHz) from the left front tire pressure sensor (A69/1), right front tire pressure sensor (A69/2), left rear tire pressure sensor (A69/3) and right rear tire pressure sensor (A69/4) are available yet. When the wheels are already known to the system, the pressure picture appears shortly after the start of the trip. It can take a few minutes for the system to identify the positions with new wheels.
A manual restart by pressing the scroll forward back/button in the lower section and then pressing the OK button is possible.
Menu display 6
Status picture in event of fault, the TPM system is nonfunctional. Possible causes are:
- System shutoff due to fault (diagnosis fault entry) or TPM [RDK] control unit nonfunctional (shutoff due to malfunction)
- Temporary fault (over voltage/under voltage, radio interference)
- The instrument cluster does not receive any messages from the TPM [RDK] control unit
Warning message 1
The TPM [RDK] system is nonfunctional. Possible causes are:
- Instrument cluster does not receive any valid Controller Area Network (data bus/CAN bus) (CAN) signals from the tire pressure monitoring control unit
- Tire pressure monitoring control unit inoperative (tire pressure monitor system shutoff because of malfunction)
On vehicles with code (494) USA version, the tire pressure monitor warning lamp in the instrument cluster flashes for t = 60 s. Then it will be actuated permanently. Following the next ignition sequence, this procedure will repeat itself until the fault is eliminated.
Warning message 2
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 a "circuit 15 Off" status.
The warning is displayed without the position being specified.
Warning message 3
The TPM [RDK] system has detected a tire pressure loss (p less than p_specified - -20 %) and assigned it to the corresponding wheel.
The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.
Warning message 4
The tire pressure monitor system has detected a significant pressure loss (p less than p_spec. -20 %) at one or more tires. The wheel position is not assigned.
The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.
Warning message 6
The tire pressure monitor system has detected a rapid pressure loss (dp/dt greater than 0.2 bar/min) at one or more tires. The corresponding wheel position is assigned.
The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.
Warning message 6
The tire pressure monitor system has detected a rapid pressure loss (dp/dt greater than 0.2 bar/min) at one or more tires. The wheel position is not assigned.
The tire pressure monitor warning lamp is permanently actuated and then an acoustic notification is emitted.
Warning message 7
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 8
The tire pressure monitor control unit is unable to receive signals from the tire pressure sensors.
Possible cause: Wheels fitted without tire pressure sensors.
On vehicles with code (494) USA version, the tire pressure monitor warning lamp in the instrument cluster flashes for t = 60 s. Then it will be actuated permanently. Following the next ignition sequence, this procedure will repeat itself until the fault is eliminated.
Warning message 9
The TPM [RDK] system is temporarily inactive because of transmission interference or because the voltage is too high/low.
On vehicles with code (494) USA version, the tire pressure monitor warning lamp in the instrument cluster flashes for t = 60 s. Then it will be actuated permanently. Following the next ignition sequence, this procedure will repeat itself until the fault is eliminated.
Warning message 10
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
- Over temperature
On vehicles with code (494) USA version, the tire pressure monitor warning lamp in the instrument cluster flashes for t = 60 s. Then it will be actuated permanently. Following the next ignition sequence, this procedure will repeat itself until the fault is eliminated.
Warning message 11
Operation feedback after manual restart.
Warning message 12
Prompt to correct pressure in the event of slight pressure loss or implausible filling.