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 output by the blinking of the tire pressure warning light.

WIRING DIAGRAM

A01XMD8E13
*a Tire Pressure Warning ECU and Receiver

Tech Tips

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 R41 connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G48-13 (TC) - R41-3 (TC) Always Below 1 Ω
      G48-13 (TC) or R41-3 (TC) - Body ground Always 10 kΩ or higher
      G48-4 (CG) - Body ground Always Below 1 Ω

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU