OBD Guide
ENFRDEESPT

B2437

Passengers Seat Belt Buckle Switch Circuit Short to Battery

B2437 is an OBD-II diagnostic trouble code meaning: Passengers Seat Belt Buckle Switch Circuit Short to Battery. Common causes: wiring harness damage, short circuit in the belt buckle switch. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Airbag light is on
  • Incorrect operation of the seat belt warning system
  • Changing the behavior of seat belt pretensioners

Causes

  • Wiring harness damage
  • Short circuit in the belt buckle switch
  • Problems with wiring under the seat
  • Contact corrosion
  • SRS module malfunction
  • Mechanical damage to the belt buckle

How to Fix

  1. Check the condition of the wiring harness under the passenger seat
  2. Check the resistance of the belt buckle switch with an ohmmeter.
  3. Inspect connectors for corrosion and oxides
  4. If necessary, replace the belt buckle switch
  5. Clear diagnostic memory and check for reoccurrence of the error

Related codes

B2436B2438B2445

FAQ

What does the B2437 code mean?

B2437 is an OBD-II diagnostic trouble code that indicates: Passengers Seat Belt Buckle Switch Circuit Short to Battery

What causes a B2437 error code?

The most common causes of B2437 include: Wiring harness damage; Short circuit in the belt buckle switch; Problems with wiring under the seat; Contact corrosion.

How do I fix a B2437 diagnostic trouble code?

To fix B2437: Check the condition of the wiring harness under the passenger seat. Check the resistance of the belt buckle switch with an ohmmeter.. Inspect connectors for corrosion and oxides. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2437?

Limited driving only, diagnose soon

How much does it cost to fix B2437?

The estimated repair cost for B2437 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat