B1660 Passenger Airbag On/Off Indicator Circuit Malfunction

OBD2 Code: B1660

Description: Passenger airbag on/off indicator circuit malfunction.

Definition: This code indicates a problem with the electrical circuit that controls the passenger airbag on/off indicator light. The issue could be due to a faulty bulb, wiring problems, or a malfunctioning control module.

b1660 – Passenger Airbag On/Off Indicator Circuit Malfunction

Typical Severity: Moderate

Common Causes

b1660 – Passenger Airbag On/Off Indicator Circuit Malfunction

Common Causes:

• Faulty passenger airbag on/off indicator switch
• Short circuit or open circuit in the wiring for the passenger airbag on/off indicator
• Defective airbag control module
• Corrosion or poor connection in the electrical system related to the passenger airbag on/off indicator

Common Misdiagnosis

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OBD2 Code: B1660

Description: Passenger Airbag On/Off Indicator Circuit Malfunction

Common Misdiagnosis: Replacing the passenger airbag module or control unit without checking the indicator circuit wiring and connections.

Common Diagnostic Steps

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OBD2 Code: B1660

Description: Passenger Airbag On/Off Indicator Circuit Malfunction

• Inspect the airbag indicator light for any visible damage or disconnection.
• Check the wiring and connectors related to the passenger airbag on/off indicator circuit for signs of wear, corrosion, or loose connections.
• Use a multimeter to test the continuity and voltage of the circuit to ensure proper electrical flow.
• Examine the passenger airbag module and control unit for any fault codes or malfunctions that may affect the indicator circuit.
• If applicable, update or reprogram the vehicle’s software to address any known issues with the airbag system.
• Replace faulty components such as damaged wires, connectors, or malfunctioning indicators if necessary.
• Clear all diagnostic trouble codes (DTCs) from the vehicle’s computer and retest to confirm successful repair.