OBD Guide
ENFRDEESPT

B1079

Diagnosis Sensor Unit

B1079 is an OBD-II diagnostic trouble code meaning: Diagnosis Sensor Unit. Common causes: open or shorted wiring harness, malfunction of the sensor diagnostic unit. 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
  • SRS does not activate in an accident
  • Error does not go away after reset

Causes

  • Open or shorted wiring harness
  • Malfunction of the sensor diagnostic unit
  • Contact corrosion
  • Unit power problems
  • Incorrect operation of shock sensors

How to Fix

  1. Check the wiring harness for opens and shorts
  2. Check contacts for corrosion
  3. Check the power supply to the diagnostic unit
  4. Check shock sensors
  5. Replace the diagnostic unit if necessary

Related codes

B1080B1081B1078

FAQ

What does the B1079 code mean?

B1079 is an OBD-II diagnostic trouble code that indicates: Diagnosis Sensor Unit

What causes a B1079 error code?

The most common causes of B1079 include: Open or shorted wiring harness; Malfunction of the sensor diagnostic unit; Contact corrosion; Unit power problems.

How do I fix a B1079 diagnostic trouble code?

To fix B1079: Check the wiring harness for opens and shorts. Check contacts for corrosion. Check the power supply to the diagnostic unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1079?

Do not drive — repair immediately

How much does it cost to fix B1079?

The estimated repair cost for B1079 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat