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
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Repair
REPAIR CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
If the installation area of the headlight assembly is damaged, use the supply retainer for low-cost repair.
Make sure that the headlight assembly is not damage
Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch
DESCRIPTION If the manual up and down function operates normally but the auto up and down function does not, then fail-safe mode may be functioning. If power window initialization has not been performed, the auto up and down function will not operate. Click here WIRING DIAGRAM CAUTION / NOTICE /
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