TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2141-C2145; Transmitter ID1 Error; 2019 - 2021 MY RAV4 RAV4 HV [11/2018

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM100000001ES1C
Model Year Start: 2019	Model: RAV4	Prod Date Range: [11/2018 - 12/2021]
Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: C2141-C2145; Transmitter ID1 Error; 2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]

DTC

C2141

Transmitter ID1 Error

DTC

C2142

Transmitter ID2 Error

DTC

C2143

Transmitter ID3 Error

DTC

C2144

Transmitter ID4 Error

DTC

C2145

Transmitter ID5 Error

DESCRIPTION

The tire pressure warning valve and transmitters that are installed in the tire and wheel assemblies measure the tire pressure of each wheel. 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.

When the internal circuit of a tire pressure warning valve and transmitter is malfunctioning, one of these DTCs is output.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
C2141	Transmitter ID1 Error	If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output. This will happen in situations where the inflation pressure is outside the specified range (0 to 380 kPa (0 to 3.9 kgf/cm², 0 to 55 psi)), the temperature inside the tire is outside the specified range (-40 to 120°C (-40 to 248°F)), or an error occurs in the tire pressure warning valve and transmitter.	Tire pressure warning valve and transmitter	-
C2142	Transmitter ID2 Error	If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output. This will happen in situations where the inflation pressure is outside the specified range (0 to 380 kPa (0 to 3.9 kgf/cm², 0 to 55 psi)), the temperature inside the tire is outside the specified range (-40 to 120°C (-40 to 248°F)), or an error occurs in the tire pressure warning valve and transmitter.	Tire pressure warning valve and transmitter	-
C2143	Transmitter ID3 Error	If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output. This will happen in situations where the inflation pressure is outside the specified range (0 to 380 kPa (0 to 3.9 kgf/cm², 0 to 55 psi)), the temperature inside the tire is outside the specified range (-40 to 120°C (-40 to 248°F)), or an error occurs in the tire pressure warning valve and transmitter.	Tire pressure warning valve and transmitter	-
C2144	Transmitter ID4 Error	If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output. This will happen in situations where the inflation pressure is outside the specified range (0 to 380 kPa (0 to 3.9 kgf/cm², 0 to 55 psi)), the temperature inside the tire is outside the specified range (-40 to 120°C (-40 to 248°F)), or an error occurs in the tire pressure warning valve and transmitter.	Tire pressure warning valve and transmitter	-
C2145	Transmitter ID5 Error	If an "ERROR" signal is received 3 times consecutively, the tire pressure warning valve and transmitter will be judged as defective and a DTC will be output. This will happen in situations where the inflation pressure is outside the specified range (0 to 380 kPa (0 to 3.9 kgf/cm², 0 to 55 psi)), the temperature inside the tire is outside the specified range (-40 to 120°C (-40 to 248°F)), or an error occurs in the tire pressure warning valve and transmitter.	Tire pressure warning valve and transmitter	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.

CAUTION / NOTICE / HINT

NOTICE:

When replacing the tire pressure warning valve and transmitter, read the transmitter IDs and number of the transmitters (4 or 5) stored in the old ECU using the Techstream and write them down before removal.
It is necessary to perform initialization after registration of the transmitter IDs into the tire pressure warning ECU and receiver if one of the valve and transmitters has been replaced.

PROCEDURE

1.	CONFIRM MODEL

(a) Choose the model to be inspected.

Result	Proceed to
w/ Tire Inflation Pressure Display Function	A
w/o Tire Inflation Pressure Display Function	B

GO TO STEP 3

2.	IDENTIFY TRANSMITTER CORRESPONDING TO DTC (TIRE POSITION)

(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) Display the "ID Tire Position" value for each wheel using the Techstream.

(g) Refer to the following chart and check the wheel position of the DTC and transmitter match.

Chassis > Tire Pressure Monitor > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
ID 1 Tire Position	ID1 Tire Position	No Information or FL or FR or RL or RR or Spare or Judging	ID1 tire position is displayed	If no tire position information is stored, "No Information" will be displayed. w/ Tire Inflation Pressure Display Function
ID 2 Tire Position	ID2 Tire Position	No Information or FL or FR or RL or RR or Spare or Judging	ID2 tire position is displayed	If no tire position information is stored, "No Information" will be displayed. w/ Tire Inflation Pressure Display Function
ID 3 Tire Position	ID3 Tire Position	No Information or FL or FR or RL or RR or Spare or Judging	ID3 tire position is displayed	If no tire position information is stored, "No Information" will be displayed. w/ Tire Inflation Pressure Display Function
ID 4 Tire Position	ID4 Tire Position	No Information or FL or FR or RL or RR or Spare or Judging	ID4 tire position is displayed	If no tire position information is stored, "No Information" will be displayed. w/ Tire Inflation Pressure Display Function
ID 5 Tire Position	ID5 Tire Position	No Information or FL or FR or RL or RR or Spare or Judging	ID5 tire position is displayed	If no tire position information is stored, "No Information" will be displayed. w/ Tire Inflation Pressure Display Function w/ Full Size Spare Tire

HINT:

Refer to the following chart for the Data List items that correspond to the DTCs.

DTC No.	Detection Item	Data List
*: w/ Full Size Spare Tire
C2141	Transmitter ID1 Error	ID1 Tire Position
C2142	Transmitter ID2 Error	ID2 Tire Position
C2143	Transmitter ID3 Error	ID3 Tire Position
C2144	Transmitter ID4 Error	ID4 Tire Position
C2145*	Transmitter ID5 Error	ID5 Tire Position

Chassis > Tire Pressure Monitor > Data List

Tester Display
ID 1 Tire Position
ID 2 Tire Position
ID 3 Tire Position
ID 4 Tire Position
ID 5 Tire Position

REPLACE CORRESPONDING TIRE PRESSURE WARNING VALVE AND TRANSMITTER

3.	IDENTIFY TRANSMITTER CORRESPONDING TO DTC (TIRE POSITION)

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

Click here

(b) Turn the ignition switch off.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

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

(g) Display the "ID Tire Inflation Pressure" value for each wheel using the Techstream.

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. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121 to C2124 (C2125: w/ Full Size Spare Tire).
Click here
*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

(h) Rapidly reduce the tire pressure for each wheel at least 40 kPa (0.4 kg/cm², 5.8 psi) within 30 seconds. If the "ID Tire Inflation Pressure" value displayed on the Techstream does not change, the tire pressure warning valve and transmitter corresponding to the unchanged "ID Tire Inflation Pressure" value was the cause of the output DTC.

HINT:

Identify the malfunctioning tire pressure warning valve and transmitter by repeatedly decreasing the tire pressure for each tire.
Record which "ID Tire Inflation Pressure" value corresponds to each tire.

(i) Check the Data List.

NOTICE:

It may take a few minutes until the values are displayed.
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.
Record the transmitter IDs and positions of transmitters that are normal.

(j) After confirming that the "ID Tire Inflation Pressure" value for one tire has changed, repeat this procedure for each tire. Identify the transmitter that corresponds to the DTC.

(k) When all of the "ID Tire Inflation Pressure" values have changed, identify the malfunctioning tire pressure warning valve and transmitter using the recorded ID numbers and output DTCs.

REPLACE CORRESPONDING TIRE PRESSURE WARNING VALVE AND TRANSMITTER