AutoCodes – Scion – B1651 Scion

B1651 Scion Code - Manual Cut-Off Switch Trouble

Quick Answer

The Airbag Cut-Off Switch circuit consists of the Center Airbag Sensor and the Airbag Cut-Off Switch. Common causes include Faulty Airbag Cut-Off Switch, Airbag Cut-Off Switch harness is open or shorted, Airbag Cut-Off Switch 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: B1651 Scion indicates Manual Cut-Off Switch Trouble.
Common causes: Common causes include Faulty Airbag Cut-Off Switch, Airbag Cut-Off Switch harness is open or shorted, Airbag Cut-Off Switch 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 1,606

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1651 Scion Description

The Airbag Cut-Off Switch circuit consists of the Center Airbag Sensor and the Airbag Cut-Off Switch. The Front Passenger Airbag can be optionally deactivated via this circuit by turning the Airbag Cut-Off Switch to the OFF position. If the Front Passenger Airbag is deactivated, the passenger airbag OFF indicator comes on to inform the passengers. The Diagnostic Trouble Code (DTC) B1651 is recorded when a malfunction is detected in the Airbag Cut-Off Switch circuit.

OBDII Code B1651 Scion - Manual Cut-Off Switch Trouble - AutoCodes.com — B1651 Scion Code - Manual Cut-Off Switch Trouble

What does this mean?

What are the Possible Causes of the DTC B1651 Scion?

Faulty Airbag Cut-Off Switch
Airbag Cut-Off Switch harness is open or shorted
Airbag Cut-Off Switch circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1651 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 B1651 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.

Need more information about the B1651 Scion code?

Need more information on how to fix the B1651 Scion code? Get Access to Factory Service Manuals

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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.

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 B1651 Scion Code

1. What are the common symptoms of OBDII code B1651 in a Scion related to the manual cut-off switch?

The common symptoms include issues with starting the vehicle, engine stalling, or the inability to turn the engine off using the manual cut-off switch.

2. What are the possible causes of OBDII code B1651 in a Scion indicating trouble with the manual cut-off switch?

The code B1651 in a Scion may be triggered by a faulty manual cut-off switch, a wiring issue, a blown fuse, or a malfunction in the circuit related to the switch.

3. How can I diagnose the manual cut-off switch issue causing OBDII code B1651 in my Scion?

You can start by checking the condition of the manual cut-off switch, inspecting the wiring for any damage, testing the switch for continuity, and ensuring the fuse related to the switch is intact.

4. Can I repair the manual cut-off switch problem triggering OBDII code B1651 in my Scion myself?

If you have experience with automotive electrical systems, you may be able to repair the manual cut-off switch issue. However, it is recommended to consult a professional mechanic for an accurate diagnosis and repair.

5. Is it safe to continue driving my Scion with OBDII code B1651 related to the manual cut-off switch issue?

It is not advisable to drive the vehicle with this issue as it may lead to starting or stalling problems. It is recommended to address the problem promptly to avoid potential safety hazards.

6. How much does it typically cost to repair the manual cut-off switch problem causing OBDII code B1651 in a Scion?

The cost of repairing the manual cut-off switch issue can vary depending on the extent of the problem and the labor rates in your area. It is best to obtain quotes from different mechanics for an accurate estimate.

7. Can resetting the OBDII system clear the B1651 code related to the manual cut-off switch issue in my Scion?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the manual cut-off switch is not addressed, the code is likely to return. It is important to diagnose and fix the root cause of the problem.

8. Are there any precautions I should take when dealing with the manual cut-off switch problem in my Scion triggering OBDII code B1651?

When working on the manual cut-off switch or related components, ensure the vehicle is turned off, disconnect the battery to prevent electrical issues, and follow proper safety procedures to avoid accidents or injuries.

9. Will replacing the manual cut-off switch solve the OBDII code B1651 issue in my Scion?

Replacing the manual cut-off switch may resolve the problem if the switch is the sole cause of the code B1651. However, it is recommended to perform a thorough diagnosis to rule out other potential issues before replacing the switch.

10. How can I prevent future occurrences of OBDII code B1651 related to the manual cut-off switch in my Scion?

Regularly inspecting the manual cut-off switch, maintaining the electrical system, and addressing any issues promptly can help prevent the reoccurrence of OBDII code B1651 in your Scion.