OBD Codes

B0225

Interior Lamp Control Module Circuit Malfunction

Lowelectrical

Overview

The B0225 code indicates that the body control module has detected a interior lamp control module circuit malfunction condition. This relates to the vehicle's body electrical systems, which control comfort, convenience, and safety features. When this code is stored, the affected system or component may not operate correctly, potentially impacting safety or comfort features.

Symptoms

  • Battery draining overnight
  • Check Engine Light (MIL) illuminated
  • Erratic gauge readings
  • Multiple warning lights on dashboard

Common Causes

  • Faulty engine control module (ECM/PCM)
  • Failed relay or fuse
  • Low battery voltage or failing battery
  • Water damage to electrical connectors

Diagnosis Steps

  1. 1Connect an OBD-II scanner and read all stored trouble codes and freeze frame data
  2. 2Check battery voltage and charging system output with a multimeter
  3. 3Inspect wiring and connectors related to the trouble code
  4. 4Test circuit voltage, ground, and resistance with a multimeter
  5. 5Check related fuses and relays

Estimated Repair Cost

$75$400

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Chevrolet ColoradoToyota TacomaChevrolet SilveradoGMC Canyon

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Frequently Asked Questions

Electrical codes can be challenging because they often involve intermittent issues. A thorough inspection of wiring, connectors, and grounds with a multimeter is essential for accurate diagnosis.