Toyota 4Runner: Transmitter ID1 Operation Stop (C2111/11-C2115/15)

Toyota 4Runner Service Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System / Transmitter ID1 Operation Stop (C2111/11-C2115/15)

DESCRIPTION

The tire pressure warning valve and transmitters installed in the tire and wheel assemblies measure the tire pressures of the tires. The measured values are transmitted to the tire pressure warning antenna and receiver on the body as radio waves and then sent to the tire pressure warning ECU. 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 turns on. The tire pressure warning ECU stores a DTC when the tire pressure warning valve and transmitter stops transmitting signals. The stored DTC is cleared when the signal transmission is resumed.

DTC Code	Detection Condition	Trouble Area
C2111/11 C2112/12 C2113/13 C2114/14 C2115/15*	The tire pressure warning valve and transmitters stop transmitting signals.	Tire pressure warning valve and transmitter Tire pressure warning ECU

DTC Code

Detection Condition

Trouble Area

C2111/11

C2112/12

C2113/13

C2114/14

C2115/15*

The tire pressure warning valve and transmitters stop transmitting signals.

Tire pressure warning valve and transmitter
Tire pressure warning ECU

*: w/ Spare Tire Pressure Warning Valve and Transmitter

HINT:

It is necessary to perform this procedure in order to identify the malfunctioning tire pressure warning valve and transmitter because it cannot be identified by the output DTCs.

WIRING DIAGRAM

PROCEDURE

1.	PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS

(a) Set the tire pressure to the specified value (See page ).

(b) Connect the Techstream to the DLC3.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

(f) Check the values by referring to the table below.

Tire Pressure Monitor

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
ID1 Tire Inflation Pressure	ID1 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure 637.5 kPa (6.5 kgf/cm2, 92 psi), Relative pressure 537.5 kPa (5.4 kgf/cm2, 78 psi)	Actual tire inflation pressure	If 0 kPa (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for relative pressure, data has not been received.*1
ID2 Tire Inflation Pressure	ID2 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure 637.5 kPa (6.5 kgf/cm2, 92 psi), Relative pressure 537.5 kPa (5.4 kgf/cm2, 78 psi)	Actual tire inflation pressure	If 0 kPa (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for relative pressure, data has not been received.*1
ID3 Tire Inflation Pressure	ID3 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure 637.5 kPa (6.5 kgf/cm2, 92 psi), Relative pressure 537.5 kPa (5.4 kgf/cm2, 78 psi)	Actual tire inflation pressure	If 0 kPa (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for relative pressure, data has not been received.*1
ID4 Tire Inflation Pressure	ID4 tire inflation pressure / min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure 637.5 kPa (6.5 kgf/cm2, 92 psi), Relative pressure 537.5 kPa (5.4 kgf/cm2, 78 psi)	Actual tire inflation pressure	If 0 kPa (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for relative pressure, data has not been received.*1
ID5 Tire Inflation Pressure*2	ID5 tire inflation pressure/ min.: Absolute pressure 0.0 kPa (0.0 kgf/cm2, 0.0 psi), Relative pressure -100.0 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure 637.5 kPa (6.5 kgf/cm2, 92 psi), Relative pressure 537.5 kPa (5.4 kgf/cm2, 78 psi)	Actual tire inflation pressure	If 0 kPa (0.0 kgf/cm2, 0.0 psi) is displayed for absolute pressure or -100 kPa (-1.0 kgf/cm2, -14 psi) is displayed for relative pressure, data has not been received.*1

HINT:

*1: It may take approximately 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 or C2125/25*2 (See page ).

*2: w/ Spare Tire Pressure Warning Valve and Transmitter

(g) Rapidly reduce the tire pressure of each tire by at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.

(1) Check that tire pressure data for each tire displayed on the Techstream screen has changed.

OK:

Tire pressure data for each tire displayed on the Techstream changes to the value of the tire pressure.

NOTICE:

It takes approximately 2 or 3 minutes to display the updated tire pressure data.
When the "ID Tire Inflation Pressure" data has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270°. Then rapidly release the tire pressure and recheck it.

(2) After confirming that all of the tire pressure data displayed on the Techstream screen has changed, set the tire pressure of all tires to the specified values.

HINT:

If the tire pressure data displayed on the Techstream has not changed after rechecking it, inspect for other problems (malfunction in transmission or reception function) (See page ).

END

INSPECT FOR OTHER PROBLEM (MALFUNCTION IN TRANSMISSION OR RECEPTION FUNCTION)

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