OBD Guide
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B1429

Lamp Seat Belt Circuit Short To Ground

B1429 is an OBD-II diagnostic trouble code meaning: Lamp Seat Belt Circuit Short To Ground. Common causes: damage to seat belt indicator circuit wiring harness, short circuit in the lamp itself. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–111 (est.)

Symptoms

  • The SRS warning light on the dashboard is on
  • The seat belt indicator does not work or does not work correctly
  • Error B1429 is stored in the control unit memory

Causes

  • Damage to seat belt indicator circuit wiring harness
  • Short circuit in the lamp itself
  • Oxidation or damage to contacts
  • SRS control unit malfunction

How to Fix

  1. Check the integrity of the seat belt indicator circuit wiring harness.
  2. Check the condition of the lamp and its contacts
  3. Clean or replace oxidized contacts
  4. Check the operation of the SRS control unit
  5. Reset the error and check if it returns

Related codes

B1428B1430B1431

FAQ

What does the B1429 code mean?

B1429 is an OBD-II diagnostic trouble code that indicates: Lamp Seat Belt Circuit Short To Ground

What causes a B1429 error code?

The most common causes of B1429 include: Damage to seat belt indicator circuit wiring harness; Short circuit in the lamp itself; Oxidation or damage to contacts; SRS control unit malfunction.

How do I fix a B1429 diagnostic trouble code?

To fix B1429: Check the integrity of the seat belt indicator circuit wiring harness.. Check the condition of the lamp and its contacts. Clean or replace oxidized contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1429?

Do not drive — repair immediately

How much does it cost to fix B1429?

The estimated repair cost for B1429 is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat