B1158 LEXUS - Front Airbag Sensor LH Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

B1158 LEXUS Possible Causes

  • Faulty Front Airbag Sensor (Left Side)
  • Front Airbag Sensor harness is open or shorted
  • Front Airbag Sensor circuit poor electrical connection
  • Faulty Airbag Sensor Assembly

First diagnose B1158 LEXUS code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the B1158 LEXUS code

    Labor: 1.0

    The cost of diagnosing the B1158 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

B1158 LEXUS Possible Symptoms

  • Air Bag Warning Light ON

B1158 LEXUS Meaning

The Front Airbag Sensor (Left Side) circuit consists of the Airbag Sensor Assembly and Front Airbag Sensor LH. The Diagnostic Trouble Code (DTC) B1158 is recorded when a malfunction is detected in the Front Airbag Sensor LH circuit.
OBDII Code B1158 LEXUS - Front Airbag Sensor LH Malfunction - Engine-Codes.com

B1158 LEXUS More Information

Need more information on how to fix the B1158 LEXUS code?
Get Access to Factory Service Manuals

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

Related Information