Engine-Codes - Generic - B1905

B1905 Code - Short in Front Pretensioner Squib Left Circuit

- Code Popularity: 16,253 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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|What are the Possible Causes of the Code B1905?

  • Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left)
  • Front Seat Outer Belt Assembly Left is open or shorted
  • Front Seat Outer Belt Assembly Left poor electrical connection
  • Faulty Center Airbag Sensor Assembly

|How to Fix the B1905 Code?

Start by checking 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's pins.

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|What is the Cost to Diagnose the Code B1905?

Labor: 1.0

The cost to diagnose the B1905 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B1905 Possible Symptoms?

  • Air Bag Warning Light ON

|What Does the B1905 Code Mean?

The Front Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Left (LH). This circuit instructs the Supplemental Restraint System (SRS) to deploy when the deployment conditions are met. The Diagnostic Trouble Code (DTC) is recorded when a malfunction is detected in the Front Pretensioner Squib Left Circuit.

B1905 Code - Short in Front Pretensioner Squib Left Circuit

|Need more Information on the B1905 Code?

Need more information on how to fix the B1905 code? Get Access to Factory Service Manuals

|Code B1905 Information for Specific Makes

|Need Help with the B1905 Code?

Get the B1905 code diagnosed by a professional: Find a repair shop in your area

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.

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