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:

Power Back Door cannot be Opened or Closed Using the Power Back Door Switch
DESCRIPTION When the power back door cannot be opened or closed using the power back door control switch, one of the following may be malfunctioning: 1) power back door control switch circuit, 2) power back door ECU (power back door motor unit) or 3) main ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the windshield deicer system. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

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 Area B2784 Transponder key coil i ...