Toyota Venza: Diagnosis System

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Smart Key System(for Entry Function) / Diagnosis System

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The certification ECU (smart key ECU assembly) control the vehicle smart key system functions. Smart key system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the smart key system. 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 listed in order ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (a) Disconnect the D25 certification ECU (smart key ECU assembly) connector. (b) Measure the voltage and resistance according ...

Other materials about Toyota Venza:

Inspection
INSPECTION PROCEDURE 1. INSPECT TRANSMISSION OIL CLEANER MAGNET (a) Use the removed transmission oil cleaner magnets to collect any steel chips. Examine the chips and particles in the automatic transaxle oil pan sub-assembly and on the tr ...

Rear Occupant Classification Sensor LH Collision Detection (B1787)
DESCRIPTION DTC B1787 is output when the occupant classification ECU receives a collision detection signal sent by the rear occupant classification sensor LH if an accident occurs. DTC B1787 is also output when the front seat assembly RH is subjected to ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: The front side fix window assembly can be reused. When installing the window, if any of the clips on the front side fix window assembly are broken, butyl tape can be used to support the glass until the a ...