Engine-Codes - Generic - B1243

B1243 Code - GSW Terminal Circuit Malfunction

- Code Popularity: 12,890 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1243?

  • Faulty Airbag Sensor Assembly
  • Airbag Sensor Assembly harness is open or shorted
  • Airbag Sensor Assembly circuit poor electrical connection
  • Faulty Main Body ECU

|How to Fix the B1243 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.

|What is the Cost to Diagnose the Code B1243?

Labor: 1.0

The cost to diagnose the B1243 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 B1243 Possible Symptoms?

  • Air Bag Warning Light ON

|What Does the B1243 Code Mean?

If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the Main Body ECU is detected, Diagnostic Trouble Code (DTC) B1243 will be stored.

GSW Terminal Circuit Malfunction

|Need more Information on the B1243 Code?

Need more information on how to fix the B1243 code? Get Access to Factory Service Manuals

|Code B1243 Information for Specific Makes

|Need Help with the B1243 Code?

Get the B1243 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.