OBD Guide

B1044

Diagnosis Sensor Unit

B1044 is an OBD-II diagnostic trouble code meaning: Diagnosis Sensor Unit. Common causes: internal malfunction of the srs diagnostic module, damage to the security system wiring harness. Estimated repair cost: $111โ€“333.

Severity
๐Ÿ”ด High
Can you drive?
Do not drive โ€” repair immediately
Approx. repair cost
$111โ€“333 (est.)

Symptoms

  • SRS/airbag indicator is on
  • Restraint system disabled
  • Lack of airbag self-diagnosis

Causes

  • Internal malfunction of the SRS diagnostic module
  • Damage to the security system wiring harness
  • Short circuit or break in the diagnostic circuit
  • Module power problems
  • Corrosion of connector contacts
  • Incorrect module software

How to Fix

  1. Check SRS trouble codes using a diagnostic scanner
  2. Visually inspect the SRS wiring harness and connectors
  3. Check the power and ground of the diagnostic module
  4. Test the SRS diagnostic module on another vehicle (if possible)
  5. Replace the faulty SRS diagnostic module
  6. Initialize the security system after repair

Related codes

FAQ

What does the B1044 code mean?

B1044 is an OBD-II diagnostic trouble code that indicates: Diagnosis Sensor Unit

What causes a B1044 error code?

The most common causes of B1044 include: Internal malfunction of the SRS diagnostic module; Damage to the security system wiring harness; Short circuit or break in the diagnostic circuit; Module power problems.

How do I fix a B1044 diagnostic trouble code?

To fix B1044: Check SRS trouble codes using a diagnostic scanner. Visually inspect the SRS wiring harness and connectors. Check the power and ground of the diagnostic module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1044?

Do not drive โ€” repair immediately

How much does it cost to fix B1044?

The estimated repair cost for B1044 is $111โ€“333. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat