B002C high Severity

B002C: Body System Diagnostic Trouble Code indicating a fault in the airbag/passenger supplemental restraint system (specific interpretation may vary by manufacturer)

Airbag/ Supplemental Restraint System (SRS) warning light illuminated; potential non‑deployment of passenger airbag in a crash

Overview

DTC B002C is a body system code often associated with an airbag/SRS malfunction related to the passenger side sensor or circuit. Requires investigation of airbag wiring, connectors, crash sensors, and SRS control module.

Common Symptoms

  • Airbag/SRS warning light on
  • Possible passenger airbag disabled or non‑deployment
  • Electrical anomalies or intermittent warning light

Most Common Causes

Faulty passenger airbag sensor or crash sensor medium

Commonly reported as primary trigger in community repair references, but lacks formal OEM definition

Wiring harness short, open, or corrosion in airbag/SRS circuit medium

Wiring issues frequently contribute to body/SRS codes

Connector corrosion or poor contact at airbag/SRS harness medium

Moisture and corrosion can create intermittent faults

Airbag control module fault or crash data causing system lock low

Airbag modules store crash data and can present related codes post‑accident

Diagnostic Steps

  1. Use a professional SRS‑capable scan tool to confirm B002C and read freeze frame/associated codes
    Expected: B002C logged, possibly alongside other SRS codes
    Interpretation: Verifies presence and context of fault
  2. Inspect passenger airbag sensor/crash sensor and corresponding wiring harness/connectors for damage or corrosion
    Expected: No visible damage, corrosion, or loose connectors
    Interpretation: Fault likely not due to wiring; if damage present, repair/replace
  3. Check continuity and resistance of affected airbag/SRS circuits with multimeter per OEM specifications
    Expected: Circuit continuity within specification
    Interpretation: Out‑of‑range results indicate wiring, short, or open circuit failures
  4. If wiring and sensors test normal, evaluate SRS control module operation or crash data memory status with advanced diagnostic tool
    Expected: Normal control module function
    Interpretation: Abnormal results may require module reset or replacement

Repair Solutions

Repair or replace faulty passenger airbag sensor/crash sensor medium
Estimated Cost: $150 - $350

Cost varies by vehicle model and sensor access difficulty

Repair wiring harness/connectors for airbag/SRS circuit hard
Estimated Cost: $100 - $300

Includes diagnosing shorts/opens and replacing harness sections

Reset or replace SRS control module if crashed or faulty hard
Estimated Cost: $300 - $1200

Advanced module work often requires professional service

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Generic body code misinterpreted as generic non‑specific error without regard to safety system context

Frequently Asked Questions

Can you explain the meaning of B002C?

Body System Diagnostic Trouble Code indicating a fault in the airbag/passenger supplemental restraint system (specific interpretation may vary by manufacturer) is the standard definition for B002C. This diagnostic code is triggered when the ECU detects a problem in the Sensors.

How serious is the B002C code?

With a severity level of high, airbag/ Supplemental Restraint System (SRS) warning light illuminated; potential non‑deployment of passenger airbag in a crash

What are the symptoms of B002C?

Common symptoms include: Airbag/SRS warning light on, Possible passenger airbag disabled or non‑deployment, Electrical anomalies or intermittent warning light. You might also notice the Check Engine Light is on.

What parts fail when B002C is set?

Potential culprits include: Faulty passenger airbag sensor or crash sensor, Wiring harness short, open, or corrosion in airbag/SRS circuit, Connector corrosion or poor contact at airbag/SRS harness. A proper diagnosis is recommended.

Estimated repair costs for different causes of B002C

Repair costs depend on the specific failure. A simple Repair wiring harness/connectors for airbag/SRS circuit replacement is relatively affordable ($100-$300), whereas a Reset or replace SRS control module if crashed or faulty repair is more expensive, potentially reaching $1200.

Does B002C affect Ford, Toyota, or Honda?

Yes, B002C is a generic code that applies to all OBD-II compliant vehicles, including Ford, Toyota, Honda, Chevrolet, Nissan, Dodge, BMW, and more.

User Comments (0)

Share your experience or ask a question about this code.

Be the first to share your experience with B002C!