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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Supplemental Restraint System) >> Airbag System >> DTC B1608/84 Front Satellite Sensor Bus LH Initialization Incomplete; DTC B1617/84 Lost Communication with Front Airbag Sensor LH; DTC B1618/84 Front Airbag Sensor LH Initialization Incomplete >> Description

DTC B1608/84 Front Satellite Sensor Bus LH Initialization Incomplete; DTC B1617/84 Lost Communication with Front Airbag Sensor LH; DTC B1618/84 Front Airbag Sensor LH Initialization Incomplete: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

The front airbag sensor LH circuit consists of the center airbag sensor assembly and front airbag sensor LH

The front airbag sensor LH detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be deployed.

These DTCs are recorded when a malfunction is detected in the front airbag sensor LH circuit

DTC DETECTION CONDITION CHART

DTC No DTC Detection Condition Trouble Area
B1608/84
B1617/84
B1618/84
  • The center airbag sensor assembly receives a line short circuit signal, an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the front airbag sensor LH circuit for 2 seconds
  • Front airbag sensor LH malfunction
  • Center airbag sensor assembly malfunction
  • Instrument panel wire
  • Engine room main wire
  • Front airbag sensor LH
  • Center airbag sensor assembly