B1795 Scion 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 Scion 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.
Code B1795 Scion Description
What are the Possible Causes of the DTC B1795 Scion?
- 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 Scion?
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 Scion 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.
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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.
Frequently Asked Questions about B1795 Scion Code
1. What are the common symptoms of OBDII code B1795 in a Scion related to the Occupant Classification ECU Malfunction?
- Common symptoms include the airbag warning light staying illuminated, the passenger airbag not deploying in an accident, and potential issues with the seat belt warning system.
2. What could cause the B1795 code to trigger in a Scion?
- The code may be triggered due to a fault in the Occupant Classification System, such as a malfunctioning sensor, wiring issues, or a problem with the ECU itself.
3. How can I diagnose the source of the Occupant Classification ECU Malfunction in my Scion?
- Diagnostic steps may include checking the wiring connections, inspecting the seat occupancy sensor, and using a scan tool to read the specific fault codes stored in the system.
4. Is it safe to drive my Scion with the B1795 code related to the Occupant Classification ECU Malfunction?
- It is recommended to address the issue promptly, as it may affect the proper functioning of the airbag system and compromise passenger safety in the event of a collision.
5. Can I reset the B1795 code in my Scion without fixing the underlying issue?
- While you can clear the code temporarily, it will likely reappear until the root cause of the Occupant Classification ECU Malfunction is identified and resolved.
6. How much does it typically cost to repair the Occupant Classification ECU Malfunction in a Scion?
- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
7. Are there any common DIY fixes for the B1795 code in a Scion?
- DIY fixes may include checking and reconnecting loose wiring, cleaning the sensor connectors, and ensuring the seat occupants meet the system's requirements for proper operation.
8. Will the B1795 code prevent my Scion from passing a state emissions inspection?
- The code itself may not directly affect emissions, but it can indicate a safety issue related to the airbag system, which may need to be resolved before passing an inspection.
9. Can a mechanic easily replace the Occupant Classification ECU in a Scion to fix the B1795 code?
- Replacing the Occupant Classification ECU may require specialized tools and expertise, so it is recommended to have a qualified mechanic perform the repair to ensure proper installation and calibration.
10. How long does it take to repair the Occupant Classification ECU Malfunction in a Scion?
- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day for diagnosis, parts replacement, and system testing.
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