OBD Guide
ENFRDEESPT

B1030

Diagnosis Sensor Unit

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$111–333 (est.)

Symptoms

  • Airbag light is on
  • The passive restraint system is not activated during the test
  • Error persists after reset

Causes

  • Malfunction of the diagnostic unit
  • Wiring harness damage
  • Power or grounding problems
  • Short circuit in the circuit
  • Software error

How to Fix

  1. Check error codes using an OBD-II scanner
  2. Inspect the wiring harness for damage
  3. Check the voltage and grounding of the diagnostic unit
  4. Replace the diagnostic unit if necessary
  5. Reset the error and check the system

Related codes

B1020B1031B1032
FRDEESPT