Engine-Codes - Generic - B1931

B1931 Code - Air Bag Crash Sensor 1 Feed/Return Circuit Failure

- Code Popularity: 4,326 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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|What are the Possible Causes of the Code B1931?

  • Faulty Air Bag Crash Sensor 1
  • Air Bag Crash Sensor 1 harness is open or shorted
  • Air Bag Crash Sensor 1 circuit poor electrical connection
  • Faulty Air Bag Control Module

|How to Fix the B1931 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 B1931?

Labor: 1.0

The cost to diagnose the B1931 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 B1931 Possible Symptoms?

  • Air Bag Warning Light ON

|What Does the B1931 Code Mean?

The Air Bag Control Module monitors the Air Bag Crash Sensor 1. The Air Bag Control Module sets the OBDII code when the Air Bag Crash Sensor 1 is not to factory specifications.

B1931 Code - Air Bag Crash Sensor 1 Feed/Return Circuit Failure

|Need more Information on the B1931 Code?

Need more information on how to fix the B1931 code? Get Access to Factory Service Manuals

|Need Help with the B1931 Code?

Get the B1931 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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