Last Modified: 4-30-2014 6.6 C Doc ID: RM0000018L1001X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: C2111/11-C2115/15; Transmitter ID1 Operation Stop; 2006 MY LX470 [05/2005 -        ]

DTC

C2111/11

Transmitter ID1 Operation Stop

DTC

C2112/12

Transmitter ID2 Operation Stop

DTC

C2113/13

Transmitter ID3 Operation Stop

DTC

C2114/14

Transmitter ID4 Operation Stop

DTC

C2115/15

Transmitter ID5 Operation Stop

DESCRIPTION

The tire pressure monitor valve sub-assembly stops transmitting signals when receiving specific signals.

The ECU stores the DTC when the tire pressure monitor valve sub-assembly receives the signals for some reason, and stops transmitting signals. As this is not a system malfunction, the DTC is erased when signal transmission is resumed.

HINT:

The radio wave is stopped at assembly plant, because the strength of the radio wave emitting from the tire pressure sensing transmitter does not comply with the Japan Wireless Telegraphy Act.

DTC No

DTC Detecting Condition

Trouble Area

C2111/11

C2112/12

C2113/13

C2114/14

C2115/15

When any signal similar to the stop signal is received for some reason, this DTC will be output.
  • Tire pressure monitor valve sub-assembly
  • Tire pressure antenna
  • Tire pressure warning select switch
  • Tire pressure monitor ECU
  • Wire harness

HINT:

It is necessary to perform the procedure to identify the tire pressure monitor valve sub-assembly that is malfunctioning because it cannot be identified by the output DTC.

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

It is necessary to register an ID code after replacing the tire pressure monitor valve sub-assembly and/or the tire pressure monitor ECU 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: REGISTRATION .

PROCEDURE

1.

PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS

(a) Remove the valve cores of the wheels to rapidly reduce the pressure of all tires to 120 kPa (1.2 kgf/cm 2 , 17 psi).

HINT:

The transmitter ID can be forcibly transmitted by rapidly reducing tire pressure.

NEXT

2.

CHECK DTC

(a) Check for DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

OK:

DTC is not output.

OK

SET TIRE PRESSURE TO NORMAL VALUE (TRANSMITTER STOP CONDITION IS COMPLETELY RESET)

NG

3.

SET TIRE PRESSURE TO NORMAL VALUE

(a) Set the tire pressure of all wheels (including the spare tire) to the specified value.

Standard pressure

Front

Rear

Spare

200 kPa (2.0 kgf/cm 2 , 29 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

NEXT

4.

PERFORM FORCED TRANSMISSION OF TRANSMITTER ID

(a) Perform forced transmission of the transmitter ID by performing the following: Set the tire pressure to the specified value and rotate the tire 90 to 270 degrees. Rapidly reduce the tire pressure of all wheels.

NEXT

5.

CHECK DTC

(a) Check for DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

Result

Result

Proceed to

DTCs C2111/11, C2112/12, C2113/13, C2114/14, and C2115/15 are all output

A

DTC C2111/11, C2112/12, C2113/13, C2114/14, or C2115/15 is output

B

HINT:

When the result is "proceed to B", a system error is probable.

B

GO TO STEP 15

A

6.

CHECK TIRE PRESSURE WARNING SELECT SWITCH POSITION

(a) Check that the position of the select switch (MAIN or 2nd) is the same as the type of registration ID of the wheels being used.
NG

CHANGE SWITCH POSITION

OK

7.

CHECK TEST MODE DTC

(a) Check for test mode DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TEST MODE PROCEDURE .

Result

Result

Proceed to

C2195/95 output

A

C2195/95 not output

B
B

GO TO STEP 11

A

8.

CHECK WIRE HARNESS (ANTENNA - ECU)

(a) Disconnect the T36 ECU connector.

(b) Disconnect the T40 and T41 antenna connectors.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:

Tester Connection

Specified Condition

T36-3 (ANTL) - T40-1

Below 1 Ω

T36-2 (ANTR) - T41-1

Below 1 Ω
NG

REPAIR OR REPLACE HARNESS AND CONNECTORS

OK

9.

REPLACE OUTER MIRROR RETRACTOR (TIRE PRESSURE ANTENNA)
NEXT

10.

CHECK DTC

(a) Check for DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

OK:

DTC is not output.

OK

END

NG

REPLACE TIRE PRESSURE MONITOR ECU

11.

CHECK WIRE HARNESS (ECU - SELECT SWITCH)

(a) Disconnect the T35 ECU connector.

(b) Disconnect the T38 switch connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:

Tester Connection

Specified Condition

T35-7 (IDSW) - T38-2

Below 1 Ω

T35-7 (IDSW) - Body ground

10 kΩ or higher

T38-1 - Body ground

Below 1 Ω

NG

REPAIR OR REPLACE HARNESS AND CONNECTORS

OK

12.

INSPECT TIRE PRESSURE WARNING SELECT SWITCH

(a) Remove the select switch.

(b) Measure the resistance of the switch.

Standard resistance:

Tester Connection

Switch Position

Specified Condition

1 - 2

MAIN

10 kΩ or higher

1 - 2

2nd

Below 1 Ω
NG

REPLACE TIRE PRESSURE WARNING SELECT SWITCH

OK

13.

REPLACE TIRE PRESSURE MONITOR ECU
NEXT

14.

CHECK DTC

(a) Check for DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

OK:

DTC is not output.

NG

REPLACE TIRE PRESSURE MONITOR VALVE SUB-ASSEMBLY

OK

END

15.

SET TIRE PRESSURE TO NORMAL VALUE

(a) Set the tire pressure of all wheels (including the spare tire) to the specified value.

Standard pressure

Front

Rear

Spare

200 kPa (2.0 kgf/cm 2 , 29 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

NEXT

16.

IDENTIFY TRANSMITTER CORRESPONDING TO DTC*1

(a) Identify transmitter corresponding to DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: Error in Present While Identifying Transmitter .

NEXT

17.

INTERCHANGE TIRES

(a) Interchange tire "A" (with a defective tire pressure monitor valve sub-assembly) with tire "B" (with a normal one).

HINT:

Perform this step if tire "A" (left front) is identified in step *1 above.
NEXT

18.

SET TIRE PRESSURE TO NORMAL VALUE

(a) Set the tire pressure of all wheels (including the spare tire) to the specified value.

Standard pressure

Front

Rear

Spare

200 kPa (2.0 kgf/cm 2 , 29 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

Trailer Towing

220 kPa (2.2 kgf/cm 2 , 32 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

240 kPa (2.4 kgf/cm 2 , 35 psi)

NEXT

19.

FORCED TRANSMISSION OF TRANSMITTER ID

(a) Remove the valve core of tire "A", rapidly reduce the tire pressure, and perform forced transmission of the transmitter ID of the tire pressure monitor valve sub-assembly.
NEXT

20.

CHECK DTC AGAIN

(a) Check for DTC 2006 MY LX470 [05/2005 -        ]; TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: DTC CHECK / CLEAR .

OK:

DTC is not output.

HINT:

  • If a DTC is output, replace the identified tire pressure monitor valve sub-assembly
  • Before installing a new tire pressure monitor valve sub-assembly, read and write down its transmitter ID
  • Register the transmitter ID after replacement, and then set the tire pressure to the specified value.
NG

REPLACE TIRE PRESSURE MONITOR VALVE SUB-ASSEMBLY

OK

REPLACE TIRE PRESSURE MONITOR ECU