RM38N0EC _53 Suspension _111812 TIRE PRESSURE MONITORING _0502854 TIRE PRESSURE WARNING SYSTEM C

TIRE PRESSURE MONITORING  TIRE PRESSURE WARNING SYSTEM  C214187  Tire Pressure Monitor Transmitter ID 1 Missing Message  C214287  Tire Pressure Monitor Transmitter ID 2 Missing Message  C214387  Tire Pressure Monitor Transmitter ID 3 Missing Message  C214487  Tire Pressure Monitor Transmitter ID 4 Missing Message  


DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. The measured values are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. The ECU compares the measured tire pressure values with the tire pressure threshold. When the measured tire pressure value is less than this threshold, the warning light in the combination meter assembly illuminates.

The tire pressure warning valve and transmitters constantly send radio waves to the tire pressure warning ECU and receiver.

Under the conditions below, the tire pressure warning ECU and receiver is unable to receive the signals from the tire pressure warning valve and transmitters, and a DTC is stored.

·

Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.

·

Devices using similar radio frequencies are used in the vehicle.

·

The ID of a tire pressure warning valve and transmitter is mistyped during registration.

·

A tire, wheel and/or transmitter from a different vehicle is installed.


DTC No. Detection Item DTC Detection Condition Trouble Area Note
C214187 Tire Pressure Monitor Transmitter ID 1 Missing Message When driving at 40 km/h (25 mph) or higher, the tire pressure warning ECU and receiver cannot receive electrical waves from the tire pressure warning valve and transmitter for a total of approximately 10 minutes
·

Tire pressure warning valve and transmitter

·

Tire pressure warning ECU and receiver


-
C214287 Tire Pressure Monitor Transmitter ID 2 Missing Message When driving at 40 km/h (25 mph) or higher, the tire pressure warning ECU and receiver cannot receive electrical waves from the tire pressure warning valve and transmitter for a total of approximately 10 minutes
·

Tire pressure warning valve and transmitter

·

Tire pressure warning ECU and receiver


-
C214387 Tire Pressure Monitor Transmitter ID 3 Missing Message When driving at 40 km/h (25 mph) or higher, the tire pressure warning ECU and receiver cannot receive electrical waves from the tire pressure warning valve and transmitter for a total of approximately 10 minutes
·

Tire pressure warning valve and transmitter

·

Tire pressure warning ECU and receiver


-
C214487 Tire Pressure Monitor Transmitter ID 4 Missing Message When driving at 40 km/h (25 mph) or higher, the tire pressure warning ECU and receiver cannot receive electrical waves from the tire pressure warning valve and transmitter for a total of approximately 10 minutes
·

Tire pressure warning valve and transmitter

·

Tire pressure warning ECU and receiver


-

WIRING DIAGRAM

C472026

C472028

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 initializationSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>INITIALIZATIONafter registrationSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REGISTRATIONof the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.



PROCEDURE

1.CHECK FREQUENCY RECEIVING CONDITION
a.

Check that the following conditions are not met:

i.

Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.

HINT:

If the vehicle is located in an area such as the one described above, the tire pressure warning light may blinks due to interfering radio frequencies.



ii.

Devices using similar radio frequencies are used in the vehicle.

HINT:

Radio transmissions may be interrupted due to the surroundings or devices installed by the user.




Result:
Result Proceed to
There is no device or facility that uses electrical waves of approximately the same frequency in the vicinity of the vehicle or inside the vehicle. A
There is a device or facility that uses electrical waves of approximately the same frequency in the vicinity of the vehicle or inside the vehicle. B



A

2.CONFIRM OUTPUT DTC

B

9.CLEAR DTC
2.CONFIRM OUTPUT DTC
a.

Check the stored DTC.

Chassis > Tire Pressure Monitor > Trouble Codes
50001 452

Result:
Result Proceed to
Any DTCs from C214187 to C214487 are output A
All DTCs from C214187 to C214487 are output B



A

3.IDENTIFY TRANSMITTER CORRESPONDING TO DTC (TIRE POSITION)

B

5.CHECK TIRE PRESSURE WARNING VALVE AND TRANSMITTER
3.IDENTIFY TRANSMITTER CORRESPONDING TO DTC (TIRE POSITION)
a.

Display the "ID Tire Position" value for each wheel using the GTS.


b.

Refer to the following chart and check the wheel position of the DTC and transmitter match.

Chassis > Tire Pressure Monitor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
ID 1 Tire Position ID1 tire position No Information, FL, FR, RL, RR, Spare or Judging ID1 tire position is displayed If no tire position information is stored, "No Information" will be displayed.
ID 2 Tire Position ID2 tire position No Information, FL, FR, RL, RR, Spare or Judging ID2 tire position is displayed If no tire position information is stored, "No Information" will be displayed.
ID 3 Tire Position ID3 tire position No Information, FL, FR, RL, RR, Spare or Judging ID3 tire position is displayed If no tire position information is stored, "No Information" will be displayed.
ID 4 Tire Position ID4 tire position No Information, FL, FR, RL, RR, Spare or Judging ID4 tire position is displayed If no tire position information is stored, "No Information" will be displayed.
Chassis > Tire Pressure Monitor > Data List
Tester Display
ID 1 Tire Position
ID 2 Tire Position
ID 3 Tire Position
ID 4 Tire Position
50003 452 66,67,68,69

Result:
Proceed to
NEXT



NEXT

4.CHECK TRANSMITTER ID
4.CHECK TRANSMITTER ID
a.

Refer to the following chart and record the tire pressure warning valve and transmitter ID of the output DTC.

Chassis > Tire Pressure Monitor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Registered ID 1 Code Registered ID1 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID1 displayed -
Registered ID 2 Code Registered ID2 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID2 displayed -
Registered ID 3 Code Registered ID3 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID3 displayed -
Registered ID 4 Code Registered ID4 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID4 displayed -
HINT:

*: Displayed only when the ID No. is not registered.


Chassis > Tire Pressure Monitor > Data List
Tester Display
Registered ID 1 Code
Registered ID 2 Code
Registered ID 3 Code
Registered ID 4 Code
50003 452 17,18,19,20

b.

Disassemble the tire indicated in the output DTC and check the tire pressure warning valve and transmitter ID.

C413296
*1 Tire Pressure Warning Valve and Transmitter - -
*a Transmitter ID (7-digit Number) - -



c.

Confirm that the ID number on the transmitter and recorded transmitter ID match.


Result:
Result Proceed to
Match A
Do not match B



A

REPLACE CORRESPONDING TIRE PRESSURE WARNING VALVE AND TRANSMITTER

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING VALVE>REMOVAL


B

6.REGISTRATION OF TRANSMITTER ID
5.CHECK TIRE PRESSURE WARNING VALVE AND TRANSMITTER
a.

Refer to the following chart and record all of the tire pressure warning valve and transmitter IDs.

Chassis > Tire Pressure Monitor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Registered ID 1 Code Registered ID1 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID1 displayed -
Registered ID 2 Code Registered ID2 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID2 displayed -
Registered ID 3 Code Registered ID3 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID3 displayed -
Registered ID 4 Code Registered ID4 code min.: 0
max.: FFFFFFF* 		ID No. registered for transmitter ID4 displayed -
HINT:
·

*: Displayed only when the ID No. is not registered.

·

The wheel position cannot be determined from ID1 through ID4 on the Data List.



Chassis > Tire Pressure Monitor > Data List
Tester Display
Registered ID 1 Code
Registered ID 2 Code
Registered ID 3 Code
Registered ID 4 Code
50003 452 17,18,19,20

b.

Disassemble all of the tires and check the tire pressure warning valve and transmitter IDs.

C413296
*1 Tire Pressure Warning Valve and Transmitter - -
*a Transmitter ID (7-digit Number) - -



c.

Confirm that the ID number on the transmitter and recorded transmitter ID match.


Result:
Result Proceed to
Match A
Do not match B



A

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REMOVAL


B

6.REGISTRATION OF TRANSMITTER ID
6.REGISTRATION OF TRANSMITTER ID
a.

Perform registration.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>REGISTRATION


Result:
Proceed to
NEXT



NEXT

7.PERFORM INITIALIZATION
7.PERFORM INITIALIZATION
a.

Perform initialization.

Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING RECEIVER>INITIALIZATION


Result:
Proceed to
NEXT



NEXT

8.CLEAR DTC
8.CLEAR DTC
a.

Clear the DTCs.

Chassis > Tire Pressure Monitor > Clear DTCs
50002 452

Result:
Proceed to
NEXT



NEXT

END

9.CLEAR DTC
a.

Clear the DTCs.

Chassis > Tire Pressure Monitor > Clear DTCs
50002 452

Result:
Proceed to
NEXT



NEXT

END

Explain to the customer that there is a high possibility that a device (located near or inside the vehicle) or facility using electrical waves of approximately the same frequency is causing electrical wave interference.