OBD Guide
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B1C47

1st Row Passenger Retractor Tensioner Circuit Low

B1C47 is an OBD-II diagnostic trouble code meaning: 1st Row Passenger Retractor Tensioner Circuit Low. Common causes: open or short circuit in wiring harness, corroded or damaged connectors. Estimated repair cost: $56–167.

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

Symptoms

  • SRS/airbag light is on
  • The passive safety system may not work in an accident.
  • False activation of pretensioners is possible

Causes

  • Open or short circuit in wiring harness
  • Corroded or damaged connectors
  • Seat belt pretensioner malfunction
  • Problems with the SRS control unit

How to Fix

  1. Diagnostics of the SRS system using a scanner
  2. Visual inspection of the wiring harness and connectors
  3. Checking the Pretensioner Circuit Resistance
  4. Replacing damaged components
  5. Resetting errors and checking system operation

Related codes

B1C46B1C48B1C49

FAQ

What does the B1C47 code mean?

B1C47 is an OBD-II diagnostic trouble code that indicates: 1st Row Passenger Retractor Tensioner Circuit Low

What causes a B1C47 error code?

The most common causes of B1C47 include: Open or short circuit in wiring harness; Corroded or damaged connectors; Seat belt pretensioner malfunction; Problems with the SRS control unit.

How do I fix a B1C47 diagnostic trouble code?

To fix B1C47: Diagnostics of the SRS system using a scanner. Visual inspection of the wiring harness and connectors. Checking the Pretensioner Circuit Resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1C47?

Do not drive — repair immediately

How much does it cost to fix B1C47?

The estimated repair cost for B1C47 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat