OBD Guide
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B1518

Seat Driver Occupied Switch Circuit Short To Ground

B1518 is an OBD-II diagnostic trouble code meaning: Seat Driver Occupied Switch Circuit Short To Ground. Common causes: wiring harness damage, malfunction of the driver's seat occupancy sensor. Estimated repair cost: $56–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–111 (est.)

Symptoms

  • SRS malfunction indicator is on
  • The passive safety system may not work correctly
  • Possible false alarms of the system

Causes

  • Wiring harness damage
  • Malfunction of the driver's seat occupancy sensor
  • Short circuit to ground
  • Damage to connectors

How to Fix

  1. Check wiring harness for damage
  2. Check the resistance of the driver's seat occupancy sensor
  3. Check connectors for corrosion and damage
  4. Replace sensor if necessary

Related codes

B1517B1519B1520

FAQ

What does the B1518 code mean?

B1518 is an OBD-II diagnostic trouble code that indicates: Seat Driver Occupied Switch Circuit Short To Ground

What causes a B1518 error code?

The most common causes of B1518 include: Wiring harness damage; Malfunction of the driver's seat occupancy sensor; Short circuit to ground; Damage to connectors.

How do I fix a B1518 diagnostic trouble code?

To fix B1518: Check wiring harness for damage. Check the resistance of the driver's seat occupancy sensor. Check connectors for corrosion and damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1518?

Limited driving only, diagnose soon

How much does it cost to fix B1518?

The estimated repair cost for B1518 is $56–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat