Toyota Venza manuals

Toyota Venza: ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the transponder key ECU assembly.

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

If the transponder key ECU assembly is replaced, register the key and ECU communication ID (See page ).


PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BATTERY AND BODY GROUND)

(a) Disconnect the transponder key ECU assembly connector.


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

Standard Voltage:

Tester Connection

Condition

Specified Condition

D22-1 (+B) - Body ground

Always

11 to 14 V

D22-2 (IG) - Body ground

Ignition switch off

Below 1 V

D22-2 (IG) - Body ground

Ignition switch ON

11 to 14 V

Standard Resistance:

Tester Connection

Condition

Specified Condition

D22-16 (GND) - Body ground

Always

Below 1 Ω

Text in Illustration

*1

Front view of wire harness connector

(to Transponder Key ECU Assembly)


OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE

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