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DTC B1622/81 Lost Communication with Driver Side - Side Airbag Sensor Assembly: Description

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

The side airbag sensor LH consists of part including the diagnostic circuit and the lateral deceleration sensor.

When the center airbag sensor receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activated.

DTC B1622/81 is set when a malfunction is detected in the side airbag sensor LH circuit.

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
B1622/81  When one following conditions is met:
  • Center airbag sensor detects line short signal, open signal, short to ground signal or short to B+ signal in side airbag sensor LH circuit for 2 seconds.
  • Side airbag sensor LH malfunction
  • Center airbag sensor malfunction
  • Floor wire
  • Side airbag sensor LH
  • Center airbag sensor