B00F4 high Severity

B00F4: Second Row Right Inflatable Seatbelt Deployment Control Fault

May illuminate airbag or restraint warning lights; no direct impact on engine performance but critical safety system compromised

Overview

Automotive DTC B00F4 relates to a fault in the inflatable seatbelt deployment control circuit for the second row right passenger; typically a body control safety/restraints code.

Common Symptoms

  • Airbag or SRS warning lamp illuminated
  • Seatbelt pre‑tensioner or inflatable seatbelt system warning
  • Possible restraint system disabled or fault indicator

Most Common Causes

Faulty inflatable seatbelt deployment control circuit or sensor medium

The restraint control module detects abnormal signals from the second row right seatbelt deployment control circuit.

Wiring harness or connector fault at seatbelt sensor or module medium

Open, shorted, or corroded connectors can trigger this fault.

Restraint Control Module (RCM) hardware fault low

Less common but possible; requires module testing.

Diagnostic Steps

  1. Connect professional diagnostic scanner to vehicle OBD port
    Expected: Read stored DTC B00F4 and any other related B‑codes
    Interpretation: Confirms fault presence and checks for additional crash data.
  2. Inspect wiring and connectors for second row right inflatable seatbelt deployment circuit
    Expected: No open, shorted, or corroded connections
    Interpretation: If wiring faults found, repair could resolve the code.
  3. Check resistance and continuity of the inflatable seatbelt deployment sensor and associated loop
    Expected: Resistance within manufacturer specifications
    Interpretation: Out‑of‑range values indicate sensor or wiring problems.
  4. If wiring and sensor are good, test Restraint Control Module (RCM) outputs and inputs
    Expected: Proper signal values
    Interpretation: Abnormal signals suggest RCM fault.

Repair Solutions

Repair or replace damaged wiring/connectors in second row right seatbelt deployment circuit medium
Estimated Cost: $50 - $250

Cost depends on damage and labor; safety system repairs require caution.

Replace second row right inflatable seatbelt sensor/deployment module hard
Estimated Cost: $300 - $800

Seatbelt safety components are expensive and may require dealer parts.

Replace Restraint Control Module (RCM) hard
Estimated Cost: $600 - $1500

Highest cost; replacement may require programming.

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Generic body control fault codes misinterpreted as unrelated accessories errors

Frequently Asked Questions

What does the B00F4 code mean?

Second Row Right Inflatable Seatbelt Deployment Control Fault is the standard definition for B00F4. This diagnostic code is triggered when the ECU detects a problem in the Body Control.

Is it safe to drive with a B00F4 code?

The B00F4 code is considered high severity. May illuminate airbag or restraint warning lights; no direct impact on engine performance but critical safety system compromised

Symptoms associated with DTC B00F4

The most typical signs are: Airbag or SRS warning lamp illuminated, Seatbelt pre‑tensioner or inflatable seatbelt system warning, Possible restraint system disabled or fault indicator.

Potential causes for OBDII code B00F4

It can be caused by several factors, most notably: Faulty inflatable seatbelt deployment control circuit or sensor, Wiring harness or connector fault at seatbelt sensor or module, Restraint Control Module (RCM) hardware fault.

What is the price difference for fixing B00F4?

The cost varies significantly based on the root cause. For example, replacing a Repair or replace damaged wiring/connectors in second row right seatbelt deployment circuit typically costs between $50 and $250, while fixing a Replace Restraint Control Module (RCM) can range from $600 to $1500.

Does B00F4 affect Ford, Toyota, or Honda?

Yes, B00F4 is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

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