Lexus ES manuals

Lexus ES: Transmitter ID1 Error (C2141-C2144)

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

-

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.

IDENTIFY TRANSMITTER CORRESPONDING TO DTC (TIRE POSITION)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(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.

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.

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.

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.

HINT:

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

DTC No.

Detection Item

Data List

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

Chassis > Tire Pressure Monitor > Data List

Tester Display

ID 1 Tire Position

ID 2 Tire Position

ID 3 Tire Position

ID 4 Tire Position

NEXT

REPLACE TIRE PRESSURE WARNING VALVE AND TRANSMITTER

READ NEXT:

 Transmitter ID not Registered (Main) (C2171)

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

 Receiver Error (C2176)

DESCRIPTION Tire pressure warning valve and transmitter signals are transmitted to the tire pressure warning ECU and receiver in the vehicle as radio waves. DTC No. Detection Item DTC Detection

 Initialization not Completed (C2177)

DESCRIPTION Initialization is necessary if one of the following occurs: The tire pressure warning ECU and receiver is replaced. A tire pressure warning valve and transmitter is replaced. Tires

SEE MORE:

 Parts Location

PARTS LOCATION ILLUSTRATION *1 FRONT CORNER ULTRASONIC SENSOR RH *2 FRONT CENTER ULTRASONIC SENSOR RH *3 FRONT CENTER ULTRASONIC SENSOR LH *4 FRONT CORNER ULTRASONIC SENSOR LH *5 REAR CORNER ULTRASONIC SENSOR RH *6 REAR CENTER ULTRASONIC SENSOR RH *7 REAR CENTER U

 Turn Signal Switch Circuit

DESCRIPTION The steering sensor receives the turn signal switch information and controls the turn signal lights. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHSTREAM (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the fol

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