Toyota CH-R Service Manual: Transmitter ID1 Operation Stop (C2111/11-C2115/15)
DESCRIPTION
The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressures. 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 ECU and receiver stores a DTC when the tire pressure warning valve and transmitter stops transmitting signals. The signals can be forcibly transmitted by releasing the tire pressure rapidly. The stored DTCs are cleared when signal transmission resumes.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|
|
C2111/11 |
Transmitter ID1 Operation Stop |
Tire pressure warning valve and transmitters stop transmitting signals |
|
- |
|
C2112/12 |
Transmitter ID2 Operation Stop |
Tire pressure warning valve and transmitters stop transmitting signals |
|
- |
|
C2113/13 |
Transmitter ID3 Operation Stop |
Tire pressure warning valve and transmitters stop transmitting signals |
|
- |
|
C2114/14 |
Transmitter ID4 Operation Stop |
Tire pressure warning valve and transmitters stop transmitting signals |
|
- |
|
C2115/15 |
Transmitter ID5 Operation Stop |
Tire pressure warning valve and transmitters stop transmitting signals |
|
w/ Full Size Spare Tire |
HINT:
It is necessary to perform the following procedure to identify the tire pressure warning valve and transmitter that is malfunctioning because it cannot be identified by the output DTC.
WIRING DIAGRAM
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PROCEDURE
|
1. |
PERFORM FORCED TRANSMISSION OF TRANSMITTER ID OF ALL WHEELS |
(a) Set the tire pressure to the specified value.
Click here
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(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.
(g) Check the values by referring to the table below.
Chassis > Tire Pressure Monitor > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
ID 1 Tire Inflation Pressure |
ID1 tire inflation pressure |
min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi) max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
If N/A is displayed, data has not been received.*1 |
|
ID 2 Tire Inflation Pressure |
ID2 tire inflation pressure |
min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi) max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
If N/A is displayed, data has not been received.*1 |
|
ID 3 Tire Inflation Pressure |
ID3 tire inflation pressure |
min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi) max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
If N/A is displayed, data has not been received.*1 |
|
ID 4 Tire Inflation Pressure |
ID4 tire inflation pressure |
min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi) max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
If N/A is displayed, data has not been received.*1 |
|
ID 5 Tire Inflation Pressure |
ID5 tire inflation pressure |
min.: Absolute pressure (abs) / 0 kPa (0 kgf/cm2, 0 psi), Relative pressure (Gauge) / 0 kPa (0 kgf/cm2, 0 psi) max.: Absolute pressure (abs) / 480 kPa (4.9 kgf/cm2, 70 psi), Relative pressure (Gauge) / 380 kPa (3.9 kgf/cm2, 55 psi) |
Actual tire inflation pressure |
|
HINT:
- *1: It may take a few 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 (C2125/25: w/
Full Size Spare Tire).
Click here
- *2: w/ Full Size Spare Tire
|
Tester Display |
|---|
|
ID 1 Tire Inflation Pressure |
|
ID 2 Tire Inflation Pressure |
|
ID 3 Tire Inflation Pressure |
|
ID 4 Tire Inflation Pressure |
|
ID 5 Tire Inflation Pressure |
(h) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kgf/cm2, 5.8 psi) within 30 seconds.
(1) Check that each "ID Tire Inflation Pressure" value displayed on the Techstream has changed.
OK:
Each tire pressure value displayed on the Techstream will change to the value of the tire pressure.
NOTICE:
- It may take a few minutes to display the updated tire pressure data.
- When an "ID Tire Inflation Pressure" value has not changed, reset the tire pressure to the appropriate specified value and rotate the tire 90 to 270 degrees. Then rapidly release the tire pressure and recheck the value.
- The wheel position cannot be determined from ID1 through ID4 (ID5: w/ Full Size Spare Tire) on the Data List.
(2) After confirming that all of the tire pressure data displayed on the Techstream has changed, set the tire pressure to the appropriate specified values.
HINT:
If the tire pressure data displayed on the Techstream has not changed after rechecking, inspect for another problem.
Click here
| OK | .gif) |
END |
| NG | |
GO TO TRANSMITTER AND RECEIVER INSPECTION PROCEDURE |
Tire Pressure Monitor Receiver Communication Stop (B1247)
DESCRIPTION
The main body ECU (multiplex network body ECU) and tire pressure warning ECU
and receiver are connected using 2 direct lines that they use to communicate with
each other.
...
ECU Power Source Circuit
DESCRIPTION
This is the power source for the tire pressure warning ECU and receiver.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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