Engine-CodesScion – B1152 Scion

B1152 Scion Code - Passenger Airbag ON/OFF Indicator Circuit Malfunction

Quick Answer

The B1152 Scion code indicates a malfunction in the passenger airbag ON/OFF indicator circuit. Common causes include Faulty passenger seat occupancy sensor, Loose or damaged wiring connections in the airbag system, Malfunctioning airbag ON/OFF indicator switch. 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
B1152 Scion indicates Passenger Airbag ON/OFF Indicator Circuit Malfunction.
Common causes
Common causes include Faulty passenger seat occupancy sensor, Loose or damaged wiring connections in the airbag system, Malfunctioning airbag ON/OFF indicator switch.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code B1152 Scion Description

The B1152 Scion code indicates a malfunction in the passenger airbag ON/OFF indicator circuit. This circuit is responsible for detecting whether there is a passenger in the front seat and whether the airbag should be activated or deactivated based on that information. When this circuit malfunctions, it can lead to issues with the passenger airbag system, potentially affecting the safety of the vehicle.

OBDII Code B1152 Scion - Passenger Airbag ON/OFF Indicator Circuit Malfunction
B1152 Scion Code - Passenger Airbag ON/OFF Indicator Circuit Malfunction

Common Causes of B1152 Scion

  1. Faulty passenger seat occupancy sensor.
  2. Loose or damaged wiring connections in the airbag system.
  3. Malfunctioning airbag ON/OFF indicator switch.
  4. Corrosion or damage to the circuitry related to the passenger airbag system.
  5. Issues with the airbag control module or related components.

Symptoms of B1152 Scion

  1. Illumination of the airbag warning light on the dashboard.
  2. Inconsistent behavior of the passenger airbag, such as deploying unexpectedly or not deploying when needed.
  3. Faulty readings on the ON/OFF indicator, displaying incorrect information about the presence of a passenger.
  4. Intermittent or complete loss of functionality in the passenger airbag system.

How to Fix B1152 Scion

  1. Begin by diagnosing the specific cause of the malfunction by using a scan tool to retrieve the trouble codes and inspecting the passenger airbag system components.
  2. Check the passenger seat occupancy sensor and its connections to ensure they are functioning correctly. Replace the sensor if necessary.
  3. Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace any faulty wiring.
  4. Test the airbag ON/OFF indicator switch and replace it if it is defective.
  5. Clear the trouble codes from the system and perform a test to verify that the passenger airbag system is functioning properly.

Cost to Fix B1152 Scion

The typical repair costs for addressing a B1152 Scion code can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the cost of repairing a passenger airbag ON/OFF indicator circuit malfunction can range from $200 to $500, including parts and labor. However, it is important to note that the cost may be higher if additional components need to be replaced or if the issue is more complex. Additionally, the diagnosis time and labor rates at auto repair shops can vary, so it is advisable to obtain a detailed estimate from a qualified technician before proceeding with the repair.

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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 B1152 Scion Code

1. What are the common symptoms of OBDII code B1152 in a Scion related to the Passenger Airbag ON/OFF Indicator Circuit Malfunction?

- The common symptoms include the passenger airbag ON/OFF indicator light staying on or flashing intermittently, indicating a malfunction in the circuit.

2. What are the possible causes of the OBDII code B1152 in a Scion?

- The code B1152 in a Scion is typically caused by a faulty passenger airbag ON/OFF indicator switch, wiring issues, or a malfunctioning airbag control module.

3. How can I diagnose the Passenger Airbag ON/OFF Indicator Circuit Malfunction in my Scion?

- You can diagnose the issue by using an OBDII scanner to read the fault code B1152, visually inspecting the indicator switch and wiring, and performing continuity tests to check for any electrical issues.

4. Is it safe to drive my Scion with the B1152 code related to the Passenger Airbag ON/OFF Indicator Circuit Malfunction?

- It is not recommended to drive the vehicle with a malfunctioning passenger airbag ON/OFF indicator circuit, as it may affect the proper functioning of the airbag system in case of a collision.

5. How can I repair the OBDII code B1152 in my Scion?

- To repair the B1152 code, you may need to replace the faulty passenger airbag ON/OFF indicator switch, repair any damaged wiring, or reprogram the airbag control module as per manufacturer's recommendations.

6. Can I reset the B1152 code in my Scion by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is essential to diagnose and address the underlying issue causing the Passenger Airbag ON/OFF Indicator Circuit Malfunction to prevent the code from reoccurring.

7. Will fixing the Passenger Airbag ON/OFF Indicator Circuit Malfunction B1152 code affect the overall airbag system in my Scion?

- Yes, resolving the B1152 code is crucial for ensuring the proper functioning of the passenger airbag system in your Scion and maintaining overall safety in case of an accident.

8. How much does it typically cost to repair the B1152 code related to the Passenger Airbag ON/OFF Indicator Circuit Malfunction in a Scion?

- The cost of repairing the B1152 code can vary depending on the root cause of the issue, parts needed for replacement, and labor charges. It is recommended to consult with a professional technician for an accurate estimate.

9. Can I perform the repair for the B1152 code in my Scion myself, or should I seek professional help?

- While some individuals with automotive repair experience may be able to address the B1152 code themselves, it is advisable to consult a qualified mechanic or technician for proper diagnosis and repair to ensure safety and effectiveness.

10. How often should I check the passenger airbag system in my Scion to prevent issues like the B1152 code from occurring?

- It is recommended to include regular inspections of the passenger airbag system, including the ON/OFF indicator circuit, as part of your vehicle maintenance routine to detect and address any potential issues early on.

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