OBD Guide
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B1943

Short to Positive in Selectable Force Limiter Squib Right Circuit

B1943 is an OBD-II diagnostic trouble code meaning: Short to Positive in Selectable Force Limiter Squib Right Circuit. Common causes: wiring harness damage, pretensioner squib malfunction. Estimated repair cost: $56–333.

Severity
🚨 Critical
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–333 (est.)

Symptoms

  • SRS malfunction indicator comes on
  • The passive safety system may not work in an accident
  • The error is stored in the memory of the control unit

Causes

  • Wiring harness damage
  • Pretensioner squib malfunction
  • Problems with the SRS control unit
  • Short circuit to positive in the circuit

How to Fix

  1. Diagnose the SRS system using a scanner
  2. Inspect the wiring harness for damage
  3. Check the resistance of the pretensioner squib
  4. If necessary, replace damaged components
  5. Reset the error and check the system

Related codes

B1942B1944B1945

FAQ

What does the B1943 code mean?

B1943 is an OBD-II diagnostic trouble code that indicates: Short to Positive in Selectable Force Limiter Squib Right Circuit

What causes a B1943 error code?

The most common causes of B1943 include: Wiring harness damage; Pretensioner squib malfunction; Problems with the SRS control unit; Short circuit to positive in the circuit.

How do I fix a B1943 diagnostic trouble code?

To fix B1943: Diagnose the SRS system using a scanner. Inspect the wiring harness for damage. Check the resistance of the pretensioner squib. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1943?

Do not drive — repair immediately

How much does it cost to fix B1943?

The estimated repair cost for B1943 is $56–333. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat