OBD Guide
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C1941

Front Acceleration Sensor

C1941 is an OBD-II diagnostic trouble code meaning: Front Acceleration Sensor. Common causes: frontal acceleration sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • The passive safety system does not activate in the event of an accident
  • Error persists after scanning

Causes

  • Frontal acceleration sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Malfunction of the airbag control unit
  • Consequences of an accident (the sensor has already tripped)

How to Fix

  1. Conduct diagnostics of the passive safety system
  2. Check the integrity of the wiring harness to the sensor
  3. Clean sensor connector contacts
  4. Check the sensor resistance (compare with the norm)
  5. Replace sensor if necessary
  6. Reset the error and check the system

Related codes

B0020B0021B0050

FAQ

What does the C1941 code mean?

C1941 is an OBD-II diagnostic trouble code that indicates: Front Acceleration Sensor

What causes a C1941 error code?

The most common causes of C1941 include: Frontal acceleration sensor malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; Malfunction of the airbag control unit.

How do I fix a C1941 diagnostic trouble code?

To fix C1941: Conduct diagnostics of the passive safety system. Check the integrity of the wiring harness to the sensor. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1941?

Do not drive — repair immediately

How much does it cost to fix C1941?

The estimated repair cost for C1941 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat