Lexus NX: Fail-safe Chart
Lexus NX Service Manual / Vehicle Interior / Supplemental Restraint Systems / Occupant Classification System / Fail-safe Chart
FAIL-SAFE CHART
FAIL SAFE FUNCTION
(a) The following chart shows the status of the controls when the system is normal and malfunctioning.
- The passenger airbag ON/OFF indicator ("ON" and "OFF") comes on for approximately 4 seconds, and then goes off for approximately 2 seconds.
- Approximately 6 seconds after the power switch is turned on (IG), the passenger airbag ON/OFF indicator will indicate ON or OFF depending on the conditions listed below.
| Condition | ON Indicator | OFF Indicator | Instrument Panel Passenger Airbag Assembly | Front Seat Airbag Assembly RH | Front Seat Cushion Airbag Assembly RH | Curtain Shield Airbag Assembly RH | Front Seat Belt Pretensioner RH | Selectable Force Limiter RH |
|---|---|---|---|---|---|---|---|---|
|
○: Deployable
X: Not deployable | ||||||||
| Adult is seated. | On | Off | ○ | ○ | ○ | ○ | ○ | ○ |
| Child is seated. | Off | On | X | ○ | X | ○ | ○ | ○ |
| Child restraint system is installed. | Off | On | X | ○ | X | ○ | ○ | ○ |
| Vacant | Off | On | X | ○ | X | ○ | ○ | ○ |
| Failure | Off | On | X | ○ | X | ○ | ○ | ○ |
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Occupant Classification System DTC No. Detection Item Link B1771 Passenger Side Buckle Switch Circuit Malfunction B1780 Front Occupant Classificat
Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The front passenger side buckle switch circuit consists of the occupant detection ECU and front seat inner belt assembly RH. DTC B1771 is stored when a malfunction is detected in the front
SEE MORE:
How To Proceed With Troubleshooting
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CONFIRM PROBLEM SYMPTOMS
NEXT 3. CUSTOMER PROBLEM ANALYSIS (a) Check if the vehicle has been jump started due to a discharged auxiliary battery. Result Proceed to The vehicle has ne
Precaution
PRECAUTION HINT:
The following procedures are used to prevent wrinkles from forming when installing the seat cover. Make sure to follow the procedures correctly.
The shape of the seat shown in the illustration may differ from the actual seat.
SEAT COVER SET (a) Align the center cutout of
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