Toyota Venza manuals

Toyota Venza: Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The transponder key ECU assembly controls the vehicle's immobiliser system functions. Immobiliser system data and Diagnostic Trouble Code (DTC) can be read through the vehicle's Data Link Connector 3 (DLC3).

In some cases, a malfunction may be occurring in the immobiliser system even though the security indicator light is not illuminated.

When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3

(a) Check the DLC3 (See page ).


3. INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery.

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK TRANSPONDER KEY AMPLIFIER (a) Disconnect the D21 transponder key amplifier connector. (b) Measure the resistance according to the value(s) in the table below. HINT: Me ...

Other materials about Toyota Venza:

Precaution
PRECAUTION 1. PRECAUTION FOR VEHICLE WITH SRS AIRBAG AND SEAT BELT PRETENSIONER (a) Some operations in this section may affect the SRS airbags. Prior to performing the corresponding operations, read the precautions regarding the SRS airbags (See page ). ...

Window Defogger Wire
On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. CHECK REAR WINDOW DEFOGGER SYSTEM OPERATION (a) When the ignition switch is turned to ON and the rear window defogger switch is pressed, check that the rear window defogger system operates. 2. I ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK POWER SOURCE MODE CHANGE FUNCTION (a) Check the function of the engine switch. (1) Check that power source mode changes in accordance with the conditions of the shift position and brake pedal. Brake Pe ...

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