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Home >> Lexus >> 2021 >> LS 500h RWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System (W/O Advanced Park) - Diagnostic Codes (1 Of 3) >> AIRBAG SYSTEM (w/o Advanced Park) >> DTC B1630: Curtain Shield Airbag Sensor (RH); DTC B1632: Curtain Shield Airbag Sensor Lost Communication (RH) [10/2020 - 11/2021] >> Description

DTC B1630: Curtain Shield Airbag Sensor (RH); DTC B1632: Curtain Shield Airbag Sensor Lost Communication (RH) [10/2020 - 11/2021]: Description

The rear airbag sensor RH consists of a lateral deceleration sensor.

If the airbag ECU assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

DTC B1630 or B1632 is stored when a malfunction is detected in the rear airbag sensor RH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1630 Curtain Shield Airbag Sensor (RH) Either condition is met:
  • A rear airbag sensor RH malfunction.
  • An airbag ECU assembly malfunction.
  • Rear airbag sensor RH
  • Airbag ECU assembly
Comes on Not applicable
B1632 Curtain Shield Airbag Sensor Lost Communication (RH) Either condition is met:
  • A rear airbag sensor RH malfunction.
  • An airbag ECU assembly malfunction.
  • Rear airbag sensor RH
  • Airbag ECU assembly
Comes on Not applicable