SsangYong Korando III (2010 year). Service manual — part 565

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Wheel module

The wheel modules are mounted to each wheel rim and hole.

TPMS ECU

The TPMS ECU is mounted to the rear bumper beam.

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3. TPMS ECU I/O DIAGRAM

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4. TPMS PRESSURE VALUE DISPLAYING PROCESS

The TPMS ECU receives the tire pressure value from the wheel module through the wireless

transmission once every about 30 seconds and displays the pressure value on the instrument cluster

through CAN line.

Under normal circumstances, it transmits the tire pressure value and temperature value together

with its ID (Identification) once every about 30 seconds to reduce the load on the wheel module's

battery. But, in the event of emergency or situation which should give a warning to the driver, it

transmits the data once every about 1 second. Since the battery consumption will be increased

rapidly until the data transmission interval will be returned to normal after certain length of time,

adjust the tire pressure to the specified one after rectifying the cause.

The tire pressure is displayed through the following sequences, which occur at the same

time.

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Wheel module detection

(Auto learning)

This is a step which receives an ID signal from the wheel module fitted
to the vehicle. When the wheel module sends the signal about twice
every 1 minute, each wheel module will be identified.

Wheel module mounting

location detection

(Auto location)

The TPMS ECU check which wheel module is installed to which tire.

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5. LOW TIRE PRESSURE WARNING

If the tire pressure is less than 13% of the proper value calculated by the TPMS ECU depending on the

ambient temperature for more than 8 minutes, the 1st low tire pressure warning is given. And, if the tire

pressure is less than 20% for more than 4 minutes, the 2nd warning is given. At this time, the "Check

tire" message is displayed on the DOT LCD display and the global warning lamp comes on.

At room temperature of 20°C

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While the proper tire pressure in this vehicle is 32 psi at room temperature of 20℃, the TPMS

ECU receives the ambient temperature signal from the instrument cluster through CAN

communication and calculates the proper tire pressure to correct it since the tire pressure changes

depending on the ambient temperature.