R 350 4MATIC (251.165) V6-3.5L (272.967) (2006)
from AAC [KLA] control and operating unit (N22)
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Outside air temperature
from EIS [EZS] control unit
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Battery voltage
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Terminal 15 "ON"
From the central gateway control unit
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Diagnosis
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Country code
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Engine, body variant
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Diagnosis active
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Wheel speeds
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Steering angle
The following information is issued via the CAN-engine compartment:
by the instrument cluster
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Tire pressures
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Messages relevant to function
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Messages relevant to operation
From the central gateway control unit
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Diagnosis
Design
The TPM [RDK] control unit consists of a high frequency receiver module, a control unit circuit board with microprocessor control and an interface
for the CAN data bus.
One differentiates between low-line and mid-line versions. In both versions the same control unit is used (hardware and software are identical).
The TPM [RDK] control unit draws on a parameter to decide which functions should be executed.