OBD Guide
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C1919

Rear Acceleration Sensor

C1919 is an OBD-II diagnostic trouble code meaning: Rear Acceleration Sensor. Common causes: damage to the sensor wiring harness, malfunction of the acceleration sensor itself. Estimated repair cost: $33–89.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–89 (est.)

Symptoms

  • The Security System (SRS) indicator light is on.
  • Possible errors in related systems (e.g. belt pretensioners)
  • In some cases, the vehicle may limit the operation of other systems until the problem is resolved.

Causes

  • Damage to the sensor wiring harness
  • Malfunction of the acceleration sensor itself
  • Corrosion or poor contact in connectors
  • Problems with the SRS control unit

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Check the integrity of the wiring harness and contacts
  3. Check resistance and sensor readings
  4. If necessary, replace the acceleration sensor
  5. Reset errors and check the system

Related codes

B0001B0002B0010

FAQ

What does the C1919 code mean?

C1919 is an OBD-II diagnostic trouble code that indicates: Rear Acceleration Sensor

What causes a C1919 error code?

The most common causes of C1919 include: Damage to the sensor wiring harness; Malfunction of the acceleration sensor itself; Corrosion or poor contact in connectors; Problems with the SRS control unit.

How do I fix a C1919 diagnostic trouble code?

To fix C1919: Diagnose the SRS system using a scanner. Check the integrity of the wiring harness and contacts. Check resistance and sensor readings. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1919?

Do not drive — repair immediately

How much does it cost to fix C1919?

The estimated repair cost for C1919 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat