Lexus NX: System Diagram
Lexus NX Service Manual / Vehicle Interior / Supplemental Restraint Systems / Occupant Classification System / System Diagram
SYSTEM DIAGRAM
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System Description
SYSTEM DESCRIPTION GENERAL (a) In the occupant classification system, the occupant detection ECU calculates the weight of the occupant based on signals from the occupant classification sensors. This s
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the occupant classification system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEX
Initialization
INITIALIZATION NOTICE: Make sure that the front passenger seat is not occupied before performing the operation. HINT: Perform zero point calibration and sensitivity check if any of the following cond
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Terminals Of Ecu
TERMINALS OF ECU CHECK HEADLIGHT ECU SUB-ASSEMBLY LH (a) Disconnect the A19 headlight sub-assembly LH connector. (b) Measure the resistance and voltage according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
PBD Unit Pulse Sensor RH Circuit (B2227)
DESCRIPTION This DTC is output when the multiplex network door ECU detects a power back door unit assembly set RH pulse malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area B2227 PBD Unit Pulse Sensor RH Circuit Multiplex network door ECU detects power back door
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