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 |
Back-up Power Source Circuit
DESCRIPTION
The back-up power source circuit for the A/C amplifier is shown below. Power
is supplied even when the ignition switch is turned off. The power is used for diagnostic
trouble code memory, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE ...
A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION
This DTC is stored when items controlled by the air conditioning amplifier assembly
cannot be customized via the audio and visual system vehicle customization screen.
HINT:
The air conditioning amplifier assembly controls the air conditioning ...
Position Initialization Incomplete (B2343)
DESCRIPTION
This DTC is output when the sliding roof ECU (sliding roof drive gear sub-assembly)
has not been initialized.
DTC Code
DTC Detection Condition
Trouble Area
B2343
Sliding roof ECU (sli ...