Engine-Codes - Generic - B1902

B1902 Code - Short to Ground in Front Pretensioner Squib Right Circuit

- Code Popularity: 10,270 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
What is this?
Table of contents
What does this mean?

What are the Possible Causes of the Code B1902?

  • Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right)
  • Front Seat Outer Belt Assembly Right harness is open or shorted
  • Front Seat Outer Belt Assembly Right circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the B1902 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.

Search B1902 Questions and Answers

What is the Cost to Diagnose the Code B1902?

Labor: 1.0

The cost to diagnose the B1902 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.

Does your Car have Safety Recalls? → Check here

What are Code B1902 Possible Symptoms?

  • Air Bag Warning Light ON

What Does the B1902 Code Mean?

The Front Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Right (RH). 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 Right Circuit.

B1902 Code - Short to Ground in Front Pretensioner Squib Right Circuit

Need more Information on the B1902 Code?

Need more information on how to fix the B1902 code? Get Access to Factory Service Manuals

Code B1902 Information for Specific Makes

  • B1902 Lexus Short to Ground in Front Pretensioner Squib Right Circuit  📷
  • B1902 Scion Short to Ground in Front Pretensioner Squib Right Circuit  📷
  • B1902 Toyota Short to Ground in Front Pretensioner Squib Right Circuit  📷

Need Help with the B1902 Code?

Get the B1902 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.

Related Information