DESCRIPTION
Each tire pressure warning valve and transmitter ID is registered to the tire pressure warning ECU.
When the ECU detects a transmitter ID code not registered in the ECU, a DTC is output.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
C2171/71 |
Transmitter ID code is not registered. (When an ID code is unregistered for 3 minutes or more) |
Tire pressure warning ECU |
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(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 |
---|---|---|---|
Registered ID1 code |
Registered ID1 code/ min.: 0 max.: FFFFFFF* |
The ID No. registered in the transmitter ID1 is displayed |
*: Displayed when the ID No. is not registered. |
Registered ID2 code |
Registered ID2 code/ min.: 0 max.: FFFFFFF* |
The ID No. registered in the transmitter ID2 is displayed |
*: Displayed when the ID No. is not registered. |
Registered ID3 code |
Registered ID3 code/ min.: 0 max.: FFFFFFF* |
The ID No. registered in the transmitter ID3 is displayed |
*: Displayed when the ID No. is not registered. |
Registered ID4 code |
Registered ID4 code/ min.: 0 max.: FFFFFFF* |
The ID No. registered in the transmitter ID4 is displayed |
*: Displayed when the ID No. is not registered. |
OK:
The registered transmitter ID codes are displayed on the Techstream.
OK |
REPLACE TIRE PRESSURE WARNING ECU |
|
2. |
PERFORM REGISTRATION (TRANSMITTER ID) |
(a) Register the transmitter IDs for 4 tires (See page ).
|
3. |
READ VALUE USING TECHSTREAM (DATA LIST) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(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 kPa (0 kgf/cm2, 0 psi), Relative pressure/ -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure/ 638 kPa (6.4 kgf/cm2, 93 psi), Relative pressure/ 538 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 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*. |
ID2 Tire Inflation Pressure |
ID2 tire inflation pressure/ min.: Absolute pressure/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure/ -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure/ 638 kPa (6.4 kgf/cm2, 93 psi), Relative pressure/ 538 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 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*. |
ID3 Tire Inflation Pressure |
ID3 tire inflation pressure/ min.: Absolute pressure/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure/ -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure/ 638 kPa (6.4 kgf/cm2, 93 psi), Relative pressure/ 538 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 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*. |
ID4 Tire Inflation Pressure |
ID4 tire inflation pressure/ min.: Absolute pressure/ 0 kPa (0 kgf/cm2, 0 psi), Relative pressure/ -100 kPa (-1.0 kgf/cm2, -14 psi) max.: Absolute pressure/ 638 kPa (6.4 kgf/cm2, 93 psi), Relative pressure/ 538 kPa (5.4 kgf/cm2, 78 psi) |
Actual tire inflation pressure |
If 0 kPa (0 kgf/cm2, 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*. |
HINT:
Result |
Proceed to |
---|---|
All tire pressure readings are equal to specified values. |
A |
Tire pressure values are not displayed. |
B |
A |
END |
B |
REPLACE TIRE PRESSURE WARNING ECU |
Vehicle Speed Sensor "A" (P0500)
DESCRIPTION
The speed sensor detects the wheel speed and sends the appropriate signals to
the skid control ECU.
The skid control ECU converts these wheel speed signals into a 4-pulse signal
and outputs it to the ECM via the combination meter. The ECM det ...
AVC-LAN Circuit
DESCRIPTION
Each unit of the navigation system connected to the AVC-LAN (communication bus)
transmits switch signals via AVC-LAN communication.
If a short to +B or short to ground occurs in the AVC-LAN, the navigation system
will not function normally be ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...