Toyota CH-R Service Manual: Transmitter ID not Registered (C2171/71)

Toyota CH-R Service Manual / Tire Pressure Monitoring / Tire Pressure Warning System / Transmitter ID not Registered (C2171/71)

DESCRIPTION

The IDs of each tire pressure warning valve and transmitter are registered to the tire pressure warning ECU and receiver.

When the ECU detects that a transmitter ID code is not registered in the ECU, this DTC is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
C2171/71	Transmitter ID not Registered	Transmitter ID code is not registered. (When an ID code is unregistered for 3 minutes or more)	Tire pressure warning ECU and receiver	-

CAUTION / NOTICE / HINT

NOTICE:

When replacing the tire pressure warning ECU and receiver, read the transmitter IDs stored in the old ECU using the Techstream and write them down before removal.
Click here
It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU and receiver if the ECU and/or one of the valve and transmitters has been replaced.

PROCEDURE

1.	CONFIRM REGISTRATION CONDITION (REGISTERED ID CODES)

(a) Turn the ignition switch off.

(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.

Chassis > Tire Pressure Monitor > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Registered ID 1 Code	Registered ID1 code	min.: 0 max.: FFFFFFF*1	ID No. registered for transmitter ID1 displayed	-
Registered ID 2 Code	Registered ID2 code	min.: 0 max.: FFFFFFF*1	ID No. registered for transmitter ID2 displayed	-
Registered ID 3 Code	Registered ID3 code	min.: 0 max.: FFFFFFF*1	ID No. registered for transmitter ID3 displayed	-
Registered ID 4 Code	Registered ID4 code	min.: 0 max.: FFFFFFF*1	ID No. registered for transmitter ID4 displayed	-
Registered ID 5 Code	Registered ID5 code	min.: 0 max.: FFFFFFF*1	ID No. registered for transmitter ID5 displayed	*2

HINT:

*1: Displayed only when the ID No. is not registered.
*2: w/ Full Size Spare Tire
The wheel position cannot be determined from ID1 through ID4 (ID5: w/ Full Size Spare Tire) on the Data List.

Chassis > Tire Pressure Monitor > Data List

Tester Display
Registered ID 1 Code
Registered ID 2 Code
Registered ID 3 Code
Registered ID 4 Code
Registered ID 5 Code

OK:

The registered transmitter ID codes are displayed on the Techstream.

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

2.	PERFORM REGISTRATION (TRANSMITTER ID)

(a) Perform registration.

Click here

3.	PERFORM INITIALIZATION

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

Click here

(b) Perform initialization.

Click here

4.	CONFIRM TIRE INFLATION PRESSURE (DATA LIST)

(a) Turn the ignition switch off.

(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.

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	If N/A is displayed, data has not been received.1 2

HINT:

*1: It may take a few minutes until the values are displayed.
The wheel position cannot be determined from ID1 through ID4 (ID5: w/ Full Size Spare Tire) on the Data List.
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.
*2: w/ Full Size Spare Tire

Chassis > Tire Pressure Monitor > Data List

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

Result	Proceed to
All tire pressure readings are equal to specified values.	A
Tire pressure values are not displayed.	B

END

REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER

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