OBD Guide
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B1084

Front Pre-Tensioner Right Short

B1084 is an OBD-II diagnostic trouble code meaning: Front Pre-Tensioner Right Short. Common causes: damage to wiring or wiring harness, right front pretensioner malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The security system malfunction indicator is on
  • The pretensioner may not operate in an accident.
  • Possible false alarms of the system

Causes

  • Damage to wiring or wiring harness
  • Right front pretensioner malfunction
  • Problems with the security control unit
  • Short circuit in the circuit

How to Fix

  1. Conduct a visual inspection of the wiring and wiring harness
  2. Check pretensioner chain resistance
  3. Diagnose the security control unit
  4. Replace pretensioner or damaged wires if necessary
  5. Reset the error and check the system

Related codes

B1083B1085B1086

FAQ

What does the B1084 code mean?

B1084 is an OBD-II diagnostic trouble code that indicates: Front Pre-Tensioner Right Short

What causes a B1084 error code?

The most common causes of B1084 include: Damage to wiring or wiring harness; Right front pretensioner malfunction; Problems with the security control unit; Short circuit in the circuit.

How do I fix a B1084 diagnostic trouble code?

To fix B1084: Conduct a visual inspection of the wiring and wiring harness. Check pretensioner chain resistance. Diagnose the security control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1084?

Do not drive — repair immediately

How much does it cost to fix B1084?

The estimated repair cost for B1084 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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