TIRE PRESSURE WARNING SYSTEM TC and CG Terminal Circuit

DTC Code DTC Name
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 output by the blinking of the tire pressure warning light.

WIRING DIAGRAM

C171960E15
Tip:

When each warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (DLC3 - ECU AND BODY GROUND)

    1. Disconnect the tire pressure warning ECU and receiver N32 connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H16-13 (TC) - N32-3 (TC)

      Always

      Below 1 Ω

      H16-13 (TC) or N32-3 (TC) - Body ground

      Always

      10 kΩ or higher

      H16-4 (CG) - Body ground

      Always

      Below 1 Ω

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    (Click here)

    REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU