AutoCodes – Toyota – B1795 Toyota

B1795 Toyota Code - Occupant Classification ECU Malfunction

Quick Answer

The Diagnostic Trouble Code (DTC) B1795 is recorded when a malfunction is detected in the Occupant Detection ECU. Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU 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: B1795 Toyota indicates Occupant Classification ECU Malfunction.
Common causes: Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU 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 6,424

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 Oct 20, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1795 Toyota Description

The Diagnostic Trouble Code (DTC) B1795 is recorded when a malfunction is detected in the Occupant Detection ECU.

OBDII Code B1795 Toyota - Occupant Classification ECU Malfunction - AutoCodes.com — B1795 Toyota Code - Occupant Classification ECU Malfunction

What does this mean?

What are the Possible Causes of the DTC B1795 Toyota?

Faulty Occupant Detection ECU
Occupant Detection ECU harness is open or shorted
Occupant Detection ECU circuit poor electrical connection

How to Fix the DTC B1795 Toyota?

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 B1795 Toyota 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 B1795 Toyota code?

Need more information on how to fix the B1795 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1795 Toyota code diagnosed by a professional: Find a repair shop in your area

Information for Specific Toyota Models

B1795 2013 Toyota RAV4 — Occupant Classification ECU Malfunction
B1795 2014 Toyota RAV4 — Occupant Classification ECU Malfunction
B1795 2015 Toyota RAV4 — Occupant Classification ECU Malfunction
B1795 2016 Toyota RAV4 — Occupant Classification ECU Malfunction
B1795 2017 Toyota RAV4 — Occupant Classification ECU Malfunction
B1795 2018 Toyota RAV4 — Occupant Classification ECU Malfunction

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 B1795 Toyota Code

1. What are common symptoms of OBDII code B1795 Toyota (Occupant Classification ECU Malfunction)?

The common symptoms of code B1795 include the airbag warning light illuminating on the dashboard and the airbag system potentially failing to deploy in an accident.

2. What causes the OBDII code B1795 Toyota to be triggered?

The code B1795 is typically triggered by a malfunction in the occupant classification electronic control unit (ECU), which is responsible for determining whether the front passenger seat is occupied and the weight of the occupant.

3. How serious is the OBDII code B1795 Toyota?

Code B1795 is a serious issue as it relates to the proper functioning of the airbag system. If the occupant classification ECU is malfunctioning, it can lead to the airbags not deploying correctly in the event of a crash, posing a safety risk.

4. Can I continue driving with the OBDII code B1795 Toyota?

It is not recommended to continue driving with code B1795 present, as it indicates a potential issue with the airbag system. It is important to have the problem diagnosed and repaired as soon as possible to ensure the airbags function properly in case of an accident.

5. How can I diagnose the OBDII code B1795 Toyota?

Diagnosing code B1795 typically involves using a professional OBDII scanner to retrieve the specific fault code and then performing further inspection of the occupant classification ECU and related components to pinpoint the exact cause of the malfunction.

6. What are some repair tips for fixing the OBDII code B1795 Toyota?

Repairing code B1795 often involves replacing the faulty occupant classification ECU or repairing any damaged wiring or connections related to the system. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Is it possible to reset the OBDII code B1795 Toyota without fixing the issue?

While it is possible to clear the fault code temporarily, the underlying issue causing code B1795 will persist unless properly repaired. Resetting the code without addressing the problem will only lead to the code reappearing later on.

8. How much does it cost to repair the OBDII code B1795 Toyota?

The cost of repairing code B1795 can vary depending on the extent of the issue and the specific repairs needed. It is advisable to obtain a diagnosis from a qualified mechanic to determine the exact cost of the repair.

9. Can a DIY enthusiast fix the OBDII code B1795 Toyota?

While some DIY enthusiasts may have the skills to diagnose and repair code B1795, due to the critical nature of the airbag system, it is recommended to seek professional help to ensure the repair is done correctly and safely.

10. How can I prevent the OBDII code B1795 Toyota from occurring again in the future?

To prevent code B1795 from occurring again, it is essential to ensure regular maintenance of the airbag system and promptly address any warning lights related to the system. Regularly checking the occupant classification ECU and related components can help prevent future malfunctions.