Toyota Venza: ECU Power Source Circuit

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Engine Immobiliser System(w/o Smart Key System) / 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)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE

Security Indicator Light Circuit

DESCRIPTION The security indicator light blinks continuously due to a continuous signal received from the transponder key ECU assembly while in the armed state. WIRING DIAGRAM CAUTION / NOTICE ...

Diagnosis Circuit

DESCRIPTION This circuit is used to read the DTCs that are output from the transponder key ECU assembly with the Techstream. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: If the transponder ...

Other materials about Toyota Venza:

Reassembly
REASSEMBLY PROCEDURE 1. BEARING POSITION (a) Check each bearing position and installation direction. Mark Front Race Diameter Inside / Outside mm (in.) Thrust Bearing Diameter Inside / Outside mm (in.) ...

Registration
REGISTRATION CAUTION / NOTICE / HINT HINT: Register a new recognition code when replacing the door control transmitter or the door control receiver. Add mode is used to retain the already registered codes while registering a new recognit ...

Clearance Warning ECU Power Source Circuit
DESCRIPTION This circuit provides power to operate the clearance warning ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure. PROCEDUR ...