TIRE PRESSURE WARNING SYSTEM TC and CG Terminal Circuit

DESCRIPTION

Tire pressure warning system DTCs can be checked by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by blinking the tire pressure warning light.

WIRING DIAGRAM

B00436GE01

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check for DTCs.

      w/o Central Gateway ECU:

      Click here

      w/ Central Gateway ECU:

      Click here

      Result
      Result Proceed to
      DTCs are not output. A
      DTCs are output. B

    B

    GO TO CAN COMMUNICATION SYSTEM w/o Central Gateway ECU: GO TO CAN COMMUNICATION SYSTEM Click here
    GO TO CAN COMMUNICATION SYSTEM w/ Central Gateway ECU: 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 AND TCM)


    1. Disconnect the A50, A169 or A173 ECM connector.

    2. for Multi-mode Manual Transaxle:

      Disconnect the E104 TCM connector.

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

      Standard Resistance
      for 1NR-FE:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A50-23 (TC) Always Below 1 Ω
      E11-13 (TC) or A50-23 (TC) - Body ground Always 10 kΩ or higher
      for 1ZR-FAE:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A50-33 (TC) Always Below 1 Ω
      E11-13 (TC) or A50-33 (TC) - Body ground Always 10 kΩ or higher
      for 1WW:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A50-50 (TC) Always Below 1 Ω
      E11-13 (TC) or A50-50 (TC) - Body ground Always 10 kΩ or higher
      for 1ND-TV:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A169-33 (TC) Always Below 1 Ω
      E11-13 (TC) or A169-33 (TC) - Body ground Always 10 kΩ or higher
      for 8NR-FTS:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - A173-33 (TC) Always Below 1 Ω
      E11-13 (TC) or A173-33 (TC) - Body ground Always 10 kΩ or higher
      for Multi-mode Manual Transaxle:
      Tester Connection Condition Specified Condition
      E11-13 (TC) - E104-25 (TC) Always Below 1 Ω
      E11-13 (TC) or E104-25 (TC) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. B0043SMC78
      *a Front view of DLC3

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E11-4 (CG) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR