Toyota Venza manuals

Toyota Venza: 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 pattern of the tire pressure warning light.

WIRING DIAGRAM


HINT:

When various warning lights blink continuously, a ground short in terminal TC of the DLC3 or an internal ground short in an ECU connected to this circuit may have occurred.

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and write them down before removal.
  • It is necessary to perform registration (See page ) of the transmitter IDs into the tire
    pressure warning ECU after the ECU has been replaced.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (DLC3 - TIRE PRESSURE WARNING ECU)

(a) Disconnect the D31 ECU connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D31-3 (TC) - D1-13 (TC)

Always

Below 1 Ω

D1-4 (CG) - Body ground

Text in Illustration

*1

Front view of wire harness connector

(to DLC3)

*2

Front view of wire harness connector

(to Tire Pressure Warning ECU)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Tire Pressure Warning Light Circuit
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