RM35X0E _53 Suspension _078885 TIRE PRESSURE MONITORING _0382739 TIRE PRESSURE WARNING SYSTEM J

TIRE PRESSURE MONITORING  TIRE PRESSURE WARNING SYSTEM  Tire Pressure Warning Light Circuit  


DESCRIPTION

If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks for 1 minute then illuminates, and tire pressure monitoring is disabled at the same time. At this time, the ECU stores a DTC in memory.

The tire pressure warning ECU and receiver sends the tire pressure warning light illumination request signal to the main body ECU (multiplex network body ECU) via a direct line. The main body ECU (multiplex network body ECU) then sends the signal to the combination meter assembly via CAN communication.

WIRING DIAGRAM

Non-Integration Type:
C420989E01
1.458,0.344 1.917,0.542 0.458,0.198 10 false N20 1.75,0.344 3.417,0.917 1.667,0.573 10 false Main Body ECU (Multiplex Network Body ECU) 3.667,0.625 4.125,0.823 0.458,0.198 10 false RDA 4.948,1.344 5.26,1.542 0.313,0.198 10 false Z3 4.948,1.542 6.979,2 2.031,0.458 10 false Tire Pressure Warning ECU and Receiver 5.302,0.635 5.917,0.833 0.615,0.198 10 false RDA2 5.042,0.49 5.208,0.677 0.167,0.188 10 false 4 4.104,0.49 4.417,0.688 0.313,0.198 10 false 10 1.583,1.385 3.896,1.615 2.313,0.229 10 false Combination Meter Assembly 1.615,1.719 3.604,2 1.99,0.281 10 false - Tire Pressure Warning Light 0.708,2.302 4.375,2.5 3.667,0.198 10 false : CAN Communication Line

Integration Type:
C420989E02
1.458,0.344 1.917,0.542 0.458,0.198 10 false N20 1.75,0.344 3.417,0.917 1.667,0.573 10 false Main Body ECU (Multiplex Network Body ECU) 3.667,0.625 4.125,0.823 0.458,0.198 10 false RDA 4.948,1.344 5.26,1.542 0.313,0.198 10 false Z30 4.948,1.542 6.979,2 2.031,0.458 10 false Tire Pressure Warning ECU and Receiver 5.302,0.635 5.917,0.833 0.615,0.198 10 false RDA 5.042,0.49 5.208,0.677 0.167,0.188 10 false 4 4.104,0.49 4.417,0.688 0.313,0.198 10 false 10 1.583,1.385 3.896,1.615 2.313,0.229 10 false Combination Meter Assembly 1.615,1.719 3.604,2 1.99,0.281 10 false - Tire Pressure Warning Light 0.708,2.302 4.375,2.5 3.667,0.198 10 false : CAN Communication Line

CAUTION / NOTICE / HINT

NOTICE:
·

When replacing the tire pressure warning ECU and receiver, first use the GTS to record all of the current IDs and registered tires with transmitters (4 or 5 tires) of the tire pressure warning valve and transmitter registered to the tire pressure warning ECU and receiver.

·

It is necessary to perform initialization Suspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION after registration Suspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>REGISTRATION of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU has been replaced.



PROCEDURE

1.CHECK FOR DTC (CAN COMMUNICATION SYSTEM)
a.

Check if CAN communication system DTCs are output.

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>DIAGNOSIS SYSTEM


Result:
Result Proceed to
DTCs are not output. A
DTCs are output. B



A

2.CHECK DTC OUTPUT (B1247)

B

GO TO CAN COMMUNICATION SYSTEM

Click herePower Source / Network>NETWORKING>CAN COMMUNICATION SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING


2.CHECK DTC OUTPUT (B1247)
a.

Clear the DTCs.

Body Electrical > Main Body > Clear DTCs
50002 123

b.

Turn the ignition switch off.


c.

Turn the ignition switch to ON.


d.

Check for DTCs.

Body Electrical > Main Body > Trouble Codes
50001 123

OK:

DTC B1247 is not output.


Result:
Proceed to
OK
NG



OK

3.CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)

NG

GO TO DTC (B1247)

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>B1247


3.CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST)
a.

Turn the ignition switch off.


b.

Connect the GTS to the DLC3.


c.

Turn the ignition switch to ON.


d.

Turn the GTS on.


e.

Enter the following menus: Body Electrical / Combination Meter / Active Test.


f.

Check the condition of the tire pressure warning light using the GTS.

Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Tire Pressure Warning System Indicator Tire pressure warning light OFF or ON -

OK:

The tire pressure warning light turns on or off in accordance with the GTS operation.


Result:
Proceed to
OK
NG



OK

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER
·

for Standard Roof:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER (for Standard Roof)>REMOVAL

·

for High Roof:

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER (for High Roof)>REMOVAL



NG

GO TO METER / GAUGE SYSTEM

Click hereVehicle Interior>METER / GAUGE / DISPLAY>METER / GAUGE SYSTEM>HOW TO PROCEED WITH TROUBLESHOOTING