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AutoCodes - Generic - B1771

B1771 Code - Passenger Side Buckle Switch Circuit Malfunction

- Code Popularity: 4,962 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Oct 14, 2022
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|Code B1771 Possible Causes

  • Faulty Front Passenger Side Buckle Switch
  • Front Passenger Side Buckle Switch harness is open or shorted
  • Front Passenger Side Buckle Switch circuit poor electrical connection
  • Faulty Occupant Classification ECU

|How do I Fix the Code B1771?

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's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B1771?

Labor: 1.0

The cost of diagnosing the B1771 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1771 Possible Symptoms?

  • Air Bag Warning Light ON

|Code B1771 Description

The Front Passenger Side Buckle Switch Circuit consists of the Occupant Classification ECU and the Front Seat Inner Belt Right (RH). The Diagnostic Trouble Code (DTC) B1771 is recorded when a malfunction is detected in the Front Passenger Side Buckle Switch Circuit.

OBDII Code B1771 - Passenger Side Buckle Switch Circuit Malfunction - AutoCodes.com
B1771 Code - Passenger Side Buckle Switch Circuit Malfunction

|Need More Information on the B1771 Code?

Need more information on how to fix the B1771 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B1771 Code?

Get the B1771 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.

|Code B1771 comments

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