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  1. P0483 Code Meaning, Causes, Symptoms & Tech Notes

    The P0483 diagnostic trouble code (DTC) indicates a malfunction in the cooling fan rationality check system. This code is often found in vehicles with electric cooling fans, which are …

  2. P0483 Cooling Fan Rationality Check Malfunction - OBD-Codes.com

    If all tests have passed so far, and you continue to get a P0483 code, this would most likely indicate a failed cooling fan module, although a failed PCM could not be ruled out until the fan …

  3. P0483 Code: Cooling Fan Rationality Check Malfunction

    Aug 19, 2024 · What Does the P0483 Code Mean? The P0483 code is defined as “cooling fan rationality check malfunction.” It is usually triggered by your powertrain control module (PCM) …

  4. P0483 Trouble Code: Meaning, Symptoms, Causes & Fixes

    Apr 9, 2024 · You’re here because a P0483 trouble code popped up on your dash, signaling an issue, and you’re itching to find out what it means and how to fix it. This guide will walk you …

  5. P0483 Code Symptoms, Causes, Diagnosis & Repair Guide and ...

    P0483 Code Symptoms, Causes, Diagnosis & Repair Guide and Programming Quick Summary P0483 indicates a “Fan Rationality Check” – the control module has detected abnormal …

  6. What is OBD-II Code P0483 – Fan Rationality Check

    As a mechanic, one of the most common problems I encounter is the OBD-II code P0483 – Fan Rationality Check. This code refers to an issue with the cooling system in your car, which can …

  7. P0483 - Fan Rationality Check - RepairPal

    Learn about P0483 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal.

  8. OBD2 Code P0483 – Causes, Symptoms, and Repairs

    Aug 29, 2025 · Learn all about the P0483 code, what causes fan rationality check issues, and how to diagnose and fix common problems to maintain optimal engine performance.

  9. P0483 – Cooling Fan Rationality Check Malfunction

    What does the P0483 code mean? The P0483 code signals a cooling fan rationality check malfunction detected by your vehicle’s onboard diagnostics. This is part of the engine control …