Toyota Venza: Diagnosis System

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

DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The certification ECU (smart key ECU assembly) and ECM control the vehicle engine immobiliser system functions. Engine immobiliser 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 engine 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.

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK ENGINE SWITCH (a) Disconnect the D13 engine switch connector. (b) Measure the resistance according to the value(s) in the table below. HINT: Measure the values on the ...

Dtc Check / Clear

DTC CHECK / CLEAR 1. CHECK FOR CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the ...

Other materials about Toyota Venza:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT COOLING FAN OPERATION AT LOW TEMPERATURES (Below 83°C (181°F)) (a) Turn the ignition switch to ON. (b) Check that the cooling fans stop. If not, check the cooling fan relays and engine coolant temperature senso ...

Glass Position Initialization Incomplete (B2313)
DESCRIPTION The power window regulator motor assembly is operated by the power window regulator master switch assembly or power window regulator switch assembly. The power window regulator motor assembly has motor, regulator and ECU functions. When the E ...

Transmission Fluid Pressure Sensor / Switch "E" Circuit Low (P0989,P0990)
DESCRIPTION ATF pressure switch No. 3 is installed in the lock-up solenoid ATF output passage and is used to detect a malfunction in the lock-up solenoid. DTC No. DTC Detection Condition Trouble Area P0989 ...