Toyota Venza: Security Indicator Light Circuit

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Engine Immobiliser System(w/ Smart Key System) / Security Indicator Light Circuit

DESCRIPTION

The security indicator light blinks continuously due to a continuous signal received from the certification ECU (smart key ECU assembly) while the engine immobiliser is set.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(d) Enter the following menus: Body Electrical / Smart Key / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Smart Key (Certification ECU (Smart Key ECU Assembly))

Tester Display	Test Part	Control Range	Diagnostic Note
Security Indicator	Security indicator light	ON or OFF	-

OK:

The security indicator light turns on and off according to operation via the Techstream.

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

2.	CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ACCESSORY METER ASSEMBLY)

(a) Disconnect the certification ECU (smart key ECU assembly) connector.

(b) Disconnect the accessory meter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D25-2 (INDS) - F2-14 (LP)	Always	Below 1 Ω
D25-2 (INDS) - Body ground	Always	10 kΩ or higher
F2-14 (LP) - Body ground	Always	10 kΩ or higher

Text in Illustration

Front view of wire harness connector

(to Certification ECU (Smart Key ECU Assembly))

Front view of wire harness connector

(to Accessory Meter Assembly)

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	CHECK HARNESS AND CONNECTOR (ACCESSORY METER ASSEMBLY - BODY GROUND)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
F2-12 (E) - Body ground	Always	Below 1 Ω

Text in Illustration

*1	Front view of wire harness connector (to Accessory Meter Assembly)

REPLACE ACCESSORY METER ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

Antenna Coil Open / Short (B2784)

DESCRIPTION This DTC is stored when there is an open or short in the transponder key coil (built into the engine switch). DTC No. DTC Detection Condition Trouble A ...

Engine Immobiliser System(w/o Smart Key System)

...

Other materials about Toyota Venza:

Inspection
INSPECTION PROCEDURE 1. INSPECT BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Check that there is ventilation from the booster to the engine, and no ventilation from the engine to the booster. If the results are not as specified, replace the brake ...

Coolant
Replacement REPLACEMENT PROCEDURE 1. REMOVE NO. 1 ENGINE UNDER COVER 2. REMOVE NO. 2 ENGINE UNDER COVER 3. DRAIN ENGINE COOLANT (a) Loosen the radiator drain cock plug and drain the coolant. NOTICE: Do not remove the reserve tank cap or radiator drai ...

Speed Sensor Rotor Faulty (C1237/37,C1275/75-C1278/78)
DESCRIPTION The skid control ECU measures the speed of each wheel by receiving signals from the speed sensor. These signals are used for recognizing that all four wheels are operating properly. Therefore, all wheel signals must be equal. DTCs C1275/75 to ...