B1660 Code - Passenger Airbag ON / OFF Indicator Circuit Malfunction

Quick Answer

The B1660 diagnostic trouble code indicates a malfunction in the passenger airbag ON/OFF indicator circuit. Common causes include Damaged wiring or connectors in the passenger airbag ON/OFF indicator circuit, Faulty passenger airbag ON/OFF sensor, Malfunctioning passenger airbag indicator light. 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

B1660 indicates Passenger Airbag ON / OFF Indicator Circuit Malfunction.

Common causes

Common causes include Damaged wiring or connectors in the passenger airbag ON/OFF indicator circuit, Faulty passenger airbag ON/OFF sensor, Malfunctioning passenger airbag indicator light.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
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Common Causes of B1660

Symptoms of B1660

How to Fix B1660

Cost to Fix B1660

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Code B1660 Information for Specific Makes

• B1660 Acura — Front Interior LF Antenna Circuit Open
• B1660 Chrysler — Front Fog Lamp Control Circuit High
• B1660 Dodge — Front Fog Lamp Control Circuit High
• B1660 Honda — Front Interior LF Antenna Circuit Open
• B1660 Jeep — Front Fog Lamp Control Circuit High
• B1660 Lexus — Passenger Airbag ON / OFF Indicator Circuit Malfunction
• B1660 RAM — Front Fog Lamp Control Circuit High
• B1660 Scion — Passenger Airbag ON / OFF Indicator Circuit Malfunction
• B1660 Toyota — Passenger Airbag ON / OFF Indicator Circuit 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 B1660 Code

1. What are the common symptoms of OBDII code B1660 (Passenger Airbag ON / OFF Indicator Circuit Malfunction)?

- The common symptoms include the passenger airbag ON/OFF indicator light not functioning properly or staying on/off when it shouldn't.

2. What are the possible causes of OBDII code B1660?

- The code B1660 can be caused by issues such as a faulty passenger airbag ON/OFF indicator switch, damaged wiring or connectors, or a malfunctioning airbag control module.

3. How can I diagnose the cause of OBDII code B1660?

- To diagnose the cause of code B1660, you may need to perform a thorough inspection of the passenger airbag ON/OFF indicator system, check the wiring and connectors for any damage, and use a diagnostic tool to retrieve specific fault codes.

4. Can I still drive my vehicle with OBDII code B1660 present?

- It is not recommended to drive the vehicle with OBDII code B1660 present, as it indicates a malfunction in the passenger airbag ON/OFF indicator system, which may affect the proper deployment of the airbag in case of an accident.

5. How can I repair OBDII code B1660?

- Repairing OBDII code B1660 typically involves identifying and resolving the underlying issue causing the malfunction. This may include replacing a faulty indicator switch, repairing damaged wiring, or addressing issues with the airbag control module.

6. Is it safe to reset the OBDII code B1660 without fixing the underlying issue?

- It is not safe to simply reset the code without addressing the underlying problem, as it may pose a risk to the proper functioning of the passenger airbag system in the event of a collision.

7. Can a DIY enthusiast fix OBDII code B1660 at home?

- Depending on the specific cause of the code, some DIY enthusiasts may be able to address the issue at home by following repair guides or tutorials. However, it is recommended to have the system inspected by a professional if unsure.

8. How much does it typically cost to repair OBDII code B1660 at a repair shop?

- The cost of repairing OBDII code B1660 at a repair shop can vary depending on the underlying issue, parts needed, and labor costs. It is advisable to get a diagnostic assessment to determine the exact cost.

9. Are there any preventive maintenance tips to avoid OBDII code B1660?

- To prevent OBDII code B1660, it is recommended to perform regular inspections of the airbag system, avoid water damage to electrical components, and address any warning lights or unusual behavior promptly.

10. Can OBDII code B1660 affect the overall safety of the vehicle?

- Yes, OBDII code B1660 can affect the overall safety of the vehicle as it pertains to the proper functioning of the passenger airbag system, which is crucial for occupant protection in the event of a crash.