Toyota Venza: Entry Interior Alarm does not Sound

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Smart Key System(for Entry Function) / Entry Interior Alarm does not Sound

DESCRIPTION

The smart key system uses the combination meter buzzer to perform various vehicle interior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer signal to the combination meter assembly, and the combination meter buzzer sounds.

CAUTION / NOTICE / HINT

NOTICE:

The smart key system (for entry function) uses a multiplex communication system (LIN communication system) and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (See page ). Troubleshoot the smart key system (for entry
function) after confirming that the communication system is functioning properly.

PROCEDURE

1.	CHECK COMBINATION METER ASSEMBLY (OPERATION)

(a) When the engine switch is on (IG) and the shift lever is in R, check that the combination meter buzzer sounds.

OK:

Combination meter buzzer sounds.

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

GO TO METER / GAUGE SYSTEM (Proceed to Problem Symptoms Table)

Room Oscillator does not Recognize Key

DESCRIPTION If the room oscillator does not recognize a key, one of the following may be the cause: 1) communication between the indoor electrical key oscillator (for front floor) and key cannot ...

Back Door Entry Unlock Function does not Operate

DESCRIPTION If the entry back door open function does not operate but the back door entry lock function operates, the communication between the vehicle and key is normal. As a faulty part, the ba ...

Other materials about Toyota Venza:

Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
DESCRIPTION This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the navigation system vehicle customization screen. HINT: The certification ECU (smart key ECU assembly) controls the smart k ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) (a) Disconnect the L20 ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color ...

Inspection
INSPECTION PROCEDURE 1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY (a) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position. Text in Illustration *1 ...