Engine-Codes - Toyota - B1148 Toyota

B1148 Toyota Code - Front Airbag Sensor RH Circuit Malfunction

- Code Popularity: 5,337 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1148 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Front Airbag Sensor (Right Side)
  • Front Airbag Sensor (Right Side) harness is open or shorted
  • Front Airbag Sensor (Right Side) circuit poor electrical connection
  • Faulty Airbag Sensor Assembly Center
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How to Fix the DTC B1148 Toyota?

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 connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1148 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Air Bag Warning Light ON

What Does the B1148 Toyota Code Mean?

The Front Airbag Sensor (Right Side) circuit consists of the diagnosis circuit and the frontal deceleration sensor, etc. If the Airbag Sensor Assembly Center receives signals from the frontal deceleration sensor, it judges whether or not the Supplemental Restraint System (SRS) should be activated. The Diagnostic Trouble Code (DTC) B1148 is recorded when a malfunction is detected in the Front Airbag Sensor (Right Side) circuit.

B1148 Toyota Code - Front Airbag Sensor RH Circuit Malfunction

Need more Information on the Code?

Need more information on how to fix the B1148 Toyota code? Get Access to Factory Service Manuals

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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.