P0483
Fan Rationality Check
P0483 is an OBD-II diagnostic trouble code meaning: Fan Rationality Check. Common causes: open or short circuit in the fan circuit, faulty fan relay. Estimated repair cost: $22–111.
Symptoms
- Engine overheating
- The fan does not turn on
- The fan runs constantly
- Reduced cooling efficiency
Causes
- Open or short circuit in the fan circuit
- Faulty fan relay
- Damaged cooling fan
- Problems with the engine control unit
- Damaged wiring harness
How to Fix
- Check the continuity of the fan circuit
- Check fan relay
- Check the fan itself for damage
- Check the condition of the wiring harness
- If necessary, replace faulty components
Related codes
Error P0483 by Vehicle Brand
FAQ
What does the P0483 code mean?
P0483 is an OBD-II diagnostic trouble code that indicates: Fan Rationality Check
What causes a P0483 error code?
The most common causes of P0483 include: Open or short circuit in the fan circuit; Faulty fan relay; Damaged cooling fan; Problems with the engine control unit.
How do I fix a P0483 diagnostic trouble code?
To fix P0483: Check the continuity of the fan circuit. Check fan relay. Check the fan itself for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0483?
Limited driving only, diagnose soon
How much does it cost to fix P0483?
The estimated repair cost for P0483 is $22–111. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat