OBD Guide
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B1660

Passenger Airbag ON / OFF Indicator Circuit Malfunction

B1660 is an OBD-II diagnostic trouble code meaning: Passenger Airbag ON / OFF Indicator Circuit Malfunction. Common causes: open or short circuit in wiring harness, passenger airbag indicator malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Passenger airbag indicator does not illuminate
  • Passenger airbag indicator flashes
  • The SRS malfunction lamp on the dashboard comes on

Causes

  • Open or short circuit in wiring harness
  • Passenger airbag indicator malfunction
  • Problems with the SRS control module
  • Corrosion of contacts or connectors

How to Fix

  1. Conduct a visual inspection of the wiring harness and connectors
  2. Check the continuity of the indicator circuit using a multimeter
  3. Replace faulty indicator or wiring harness
  4. Flash or replace the SRS control module if necessary
  5. Clean contacts from corrosion

Related codes

B1650B1670B1680

FAQ

What does the B1660 code mean?

B1660 is an OBD-II diagnostic trouble code that indicates: Passenger Airbag ON / OFF Indicator Circuit Malfunction

What causes a B1660 error code?

The most common causes of B1660 include: Open or short circuit in wiring harness; Passenger airbag indicator malfunction; Problems with the SRS control module; Corrosion of contacts or connectors.

How do I fix a B1660 diagnostic trouble code?

To fix B1660: Conduct a visual inspection of the wiring harness and connectors. Check the continuity of the indicator circuit using a multimeter. Replace faulty indicator or wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1660?

Do not drive — repair immediately

How much does it cost to fix B1660?

The estimated repair cost for B1660 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat