OBD Guide
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B1677

Alarm Panic Input Circuit Failure

B1677 is an OBD-II diagnostic trouble code meaning: Alarm Panic Input Circuit Failure. Common causes: open or short circuit in the panic button circuit, malfunction of the panic button itself. Estimated repair cost: $22–111.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Panic button does not work
  • Alarm does not activate when button is pressed
  • False alarms

Causes

  • Open or short circuit in the panic button circuit
  • Malfunction of the panic button itself
  • Problems with the alarm module
  • Contact corrosion
  • Wiring harness damage

How to Fix

  1. Check the operation of the panic button (functionality of the mechanism, sticking)
  2. Check the integrity of the wiring harness from the button to the alarm module
  3. Check the circuit for breaks and short circuits
  4. Check the condition of contacts and connectors
  5. If necessary, replace the panic button or repair the wiring harness

Related codes

B1125B1126B1676

FAQ

What does the B1677 code mean?

B1677 is an OBD-II diagnostic trouble code that indicates: Alarm Panic Input Circuit Failure

What causes a B1677 error code?

The most common causes of B1677 include: Open or short circuit in the panic button circuit; Malfunction of the panic button itself; Problems with the alarm module; Contact corrosion.

How do I fix a B1677 diagnostic trouble code?

To fix B1677: Check the operation of the panic button (functionality of the mechanism, sticking). Check the integrity of the wiring harness from the button to the alarm module. Check the circuit for breaks and short circuits. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1677?

Yes, but get it checked soon

How much does it cost to fix B1677?

The estimated repair cost for B1677 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat