OBD Guide
ENFRDEESPT

B1918

Air Bag Memory Clear Circuit Open

B1918 is an OBD-II diagnostic trouble code meaning: Air Bag Memory Clear Circuit Open. Common causes: broken or damaged wiring harness, oxidation of contacts in connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Inability to reset SRS errors
  • Reduced effectiveness of the passive safety system

Causes

  • Broken or damaged wiring harness
  • Oxidation of contacts in connectors
  • SRS module malfunction
  • Circuit power problems

How to Fix

  1. Check the integrity of the memory reset circuit wiring harness.
  2. Inspect and clean the contacts in the connectors
  3. Check power and ground circuit
  4. Test the SRS module
  5. Replace damaged components

Related codes

B1917B1919B1920

FAQ

What does the B1918 code mean?

B1918 is an OBD-II diagnostic trouble code that indicates: Air Bag Memory Clear Circuit Open

What causes a B1918 error code?

The most common causes of B1918 include: Broken or damaged wiring harness; Oxidation of contacts in connectors; SRS module malfunction; Circuit power problems.

How do I fix a B1918 diagnostic trouble code?

To fix B1918: Check the integrity of the memory reset circuit wiring harness.. Inspect and clean the contacts in the connectors. Check power and ground circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1918?

Do not drive — repair immediately

How much does it cost to fix B1918?

The estimated repair cost for B1918 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat