OBD-II fault code

B007F: Passenger Seatbelt Pretensioner "C" Deployment Control (Subfault)

What it means

This code identifies a fault associated with the passenger seatbelt pretensioner C deployment control. The failure type byte specifies the detected fault.

How it works

The passenger seatbelt pretensioner C is an SRS component designed to tighten the passenger's belt in a crash. The restraints control module monitors its deployment circuit and records this code when it detects a fault; the accompanying subfault information identifies the failure type.

Common causes

Most likely first.

  1. Pretensioner circuit wiring or connector fault
  2. Open or short in the deployment circuit
  3. Faulty pretensioner
  4. Restraints control module fault

Symptoms

  • Airbag or SRS warning light
  • Pretensioner may not operate as intended in a crash

How to diagnose it

  1. Read the SRS subfault details and freeze-frame data first to determine the reported circuit condition and when it occurred.
  2. Inspect the passenger pretensioner C connector and harness for damage, corrosion, loose fit, or pinching.
  3. Check for other SRS codes that may point to shared module power, ground, or connector problems.
  4. Following the manufacturer's safety procedure, test the passenger pretensioner C circuit for an open or short consistent with the subfault.
  5. If wiring checks pass, test the passenger pretensioner C assembly and restraints control module using the manufacturer's procedure.

Common fixes

  • Reconnect or repair a loose or corroded passenger pretensioner C connector.
  • Repair damaged or shorted wiring in the passenger pretensioner C deployment circuit.
  • Replace the passenger seatbelt pretensioner C assembly if testing confirms it is faulty.
  • Repair or replace the restraints control module if the circuit checks pass and module testing confirms a fault.

Can I keep driving?

The vehicle may be driveable, but the passenger belt pretensioner C may not function as intended in a crash. Keep the belt correctly fastened and arrange prompt SRS diagnosis; do not probe deployment wiring outside the manufacturer's safety procedure.

A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together

This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.

Codes for the same component

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