TIRE PRESSURE WARNING SYSTEM TC and CG Terminal Circuit

DESCRIPTION

DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by the blinking of the tire pressure warning light.

WIRING DIAGRAM

A011V4KE02

INSPECTION PROCEDURE

PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if a CAN communication system DTC is output Click here.

      Result
      Result Proceed to
      DTC is not output. A
      DTC is output. B
    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK DTC (C2179/79)

    1. Check if DTC C2179/79 is output Click here.

      Result
      Result Proceed to
      DTC C2179/79 is not output. A
      DTC C2179/79 is output. B
    B

    GO TO DTC C2179/79 Click here

    A

  3. CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

    1. Disconnect the A25 ECM connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for 2AR-FE
      Tester Connection Condition Specified Condition
      I39-13 (TC) - A25-23 (TC) Always Below 1 Ω
      for 2GR-FE
      Tester Connection Condition Specified Condition
      I39-13 (TC) - A25-45 (TC) Always Below 1 Ω
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

    1. Measure the resistance according to the value(s) in the table below.

      A011RCIE18
      Standard Resistance
      Tester Connection Condition Specified Condition
      I39-4 (CG) - Body ground Always Below 1 Ω
      Text in Illustration
      *a Front view of DLC3
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT DLC3 (TC VOLTAGE)

    1. Connect the A25 ECM connector.

      A011RCIE33

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      I39-13 (TC) - I39-4 (CG) Ignition switch ON 11 to 14 V
      Text in Illustration
      *a Front view of DLC3
      Result
      Condition Proceed to
      OK A
      NG (for 2AR-FE) B
      NG (for 2GR-FE) C
    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    A

    REPLACE PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here