AutoCodes – Toyota – B1877 2016 Toyota RAV4

B1877 2016 Toyota RAV4 Code - Short to Ground in Passenger Side Front Seat Cushion Squib Circuit

Quick Answer

The Front Seat Cushion Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Front Seat Airbag Sub-Assembly. Common causes include Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right), Front Seat Airbag Sub-Assembly harness is open or shorted, Front Seat Airbag Sub-Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1877 2016 Toyota RAV4 indicates Short to Ground in Passenger Side Front Seat Cushion Squib Circuit.
Common causes: Common causes include Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right), Front Seat Airbag Sub-Assembly harness is open or shorted, Front Seat Airbag Sub-Assembly circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 201

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Dec 02, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1877 2016 Toyota RAV4 Description

The Front Seat Cushion Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Front Seat Airbag Sub-Assembly. This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Front Seat Cushion Squib Right (RH).

OBDII Code B1877 2016 Toyota RAV4 - Short to Ground in Passenger Side Front Seat Cushion Squib Circuit - AutoCodes.com — B1877 2016 Toyota RAV4 Code - Short to Ground in Passenger Side Front Seat Cushion Squib Circuit

What does this mean?

What are the Possible Causes of the DTC B1877 2016 Toyota RAV4?

Faulty Front Seat Airbag Sub-Assembly (Front Seat Cushion Squib Right)
Front Seat Airbag Sub-Assembly harness is open or shorted
Front Seat Airbag Sub-Assembly circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1877 2016 Toyota RAV4?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1877 2016 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1877 2016 Toyota RAV4 code?

Need more information on how to fix the B1877 2016 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1877 2016 Toyota RAV4 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.

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1877 2016 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1877 in a 2016 Toyota RAV4?

The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger side front seat airbag system.

2. What does the OBDII code B1877 "Short to Ground in Passenger Side Front Seat Cushion Squib Circuit" mean?

This code indicates a potential short to ground in the passenger side front seat cushion airbag system circuit.

3. What are the possible causes of OBDII code B1877 in a 2016 Toyota RAV4?

Possible causes include damaged wiring, a faulty seat cushion airbag squib, poor electrical connections, or a malfunctioning airbag control module.

4. How can I diagnose the issue related to OBDII code B1877 in my 2016 Toyota RAV4?

Diagnosis typically involves inspecting the wiring and connections in the passenger side front seat cushion airbag system, checking for any visible damage, and using a multimeter to test for shorts to ground.

5. Can I repair OBDII code B1877 in my 2016 Toyota RAV4 on my own?

While some DIY enthusiasts may attempt to diagnose and repair this issue, it is recommended to seek professional assistance due to the safety implications of airbag system malfunctions.

6. Is it safe to drive my 2016 Toyota RAV4 with OBDII code B1877 present?

It is not advisable to drive the vehicle with this code active, as it indicates a potential problem with the passenger side front seat airbag system, which could affect its functionality in the event of an accident.

7. How much does it typically cost to repair OBDII code B1877 in a 2016 Toyota RAV4?

The cost of repair can vary depending on the root cause of the issue, but it may involve replacing damaged wiring, repairing or replacing the seat cushion airbag squib, or addressing other related components.

8. Can resetting the OBDII system clear the B1877 code in my 2016 Toyota RAV4?

While resetting the system may temporarily clear the code, it is likely to reappear if the underlying issue causing the short to ground in the passenger side front seat cushion squib circuit is not addressed.

9. Are there any safety precautions I should take when dealing with OBDII code B1877 in my 2016 Toyota RAV4?

It's essential to disconnect the vehicle's battery before attempting any diagnosis or repair to prevent accidental airbag deployment and ensure safety during the process.

10. How can I prevent OBDII code B1877 from occurring in my 2016 Toyota RAV4 in the future?

Regular inspection and maintenance of the airbag system components, including wiring and connections, can help prevent issues like shorts to ground and ensure the system functions correctly.