Toyota Venza: Diagnosis System

Toyota Venza Service Manual / Supplemental Restraint Systems / Occupant Classification System / Diagnosis System

DIAGNOSIS SYSTEM

1. CHECK DLC3

(a) Check the DLC3 (See page ).

2. FUNCTION OF PASSENGER AIRBAG ON/OFF INDICATOR

(a) Initial check.

(1) Turn the ignition switch to ON.

(2) The passenger airbag ON/OFF indicator ("ON" and "OFF") comes on for approximately 4 seconds, then goes off for approximately 2 seconds.

(3) Approximately 6 seconds after the ignition switch is turned to ON, the passenger airbag ON/OFF indicator will show ON or OFF depending on the conditions listed below.

Front Passenger Seat Condition	Passenger Airbag ON/OFF Indicator		SRS Warning Light
Front Passenger Seat Condition	ON Indicator	OFF Indicator	SRS Warning Light
Vacant	OFF	OFF	OFF
Adult is seated.	ON	OFF	OFF
Child is seated.	OFF	ON	OFF
Child restraint system is set.	OFF	ON	OFF
Occupant classification system failure	OFF	ON	ON

HINT:

The passenger airbag ON/OFF indicator is based on the timing chart below in order to check the indicator light circuit.
When the occupant classification system has trouble, both the SRS warning light and passenger airbag ON/OFF indicator ("OFF") come on. In this case, check the DTCs in the airbag system first.

3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR

(a) Turn the ignition switch to ON.

(b) Check that the passenger airbag ON/OFF indicator (ON and OFF) comes on for approximately 4 seconds, then goes off for approximately 2 seconds.

HINT:

Refer to the table in step 3 regarding the passenger airbag ON/OFF indicator when the ignition switch is turned to ON and approximately 6 seconds pass.

Terminals Of Ecu

TERMINALS OF ECU 1. OCCUPANT CLASSIFICATION ECU (for Power Seat) Terminal No. (Symbol) Wiring Color Terminal Description Condition Specificat ...

Dtc Check / Clear

DTC CHECK / CLEAR HINT: Use the Techstream to read and clear the DTC of the occupant classification ECU, otherwise the DTCs cannot be read and cleared. 1. DTC CHECK (a) Turn the ignition switch ...

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