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2007 KIA OPTIMA
2.4L I4•FWD•AUTOMATIC•gas•G4KE
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor496Torque4258Fluid7DTC1007Battery1Maintenance0Recalls2
B0043critical severityBody

Rear Impact Sensor Circuit

on 2007 Kia Optima 2.4L I4 · FWD

What this code means

Malfunction in the rear impact sensor circuit. This sensor detects rear-end collision severity for fuel shutoff and restraint deployment.

Symptoms

  • Airbag warning light on
  • SRS fault stored
  • Rear collision protection degraded

Common causes

  • Faulty rear impact sensor
  • Wiring damage from rear collision
  • Trunk area moisture intrusion
  • Sensor mounting loose

Diagnostic steps

  1. Scan SRS codes
  2. Inspect rear impact sensor in trunk or rear panel area
  3. Check wiring
  4. Measure circuit resistance

Repair notes

Replace rear impact sensor or repair wiring. Check for moisture intrusion in trunk area.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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