OBD Guide

P1480

Cooling Fan 1 Control Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Engine overheating
  • Cooling fan does not turn on
  • The fan runs constantly
  • Check Engine light comes on
  • Reduced engine power due to overheating

Causes

  • Open or short circuit in fan control circuit
  • Faulty fan relay
  • Damaged fan motor
  • Problems with the ECU or its software
  • Corrosion or poor contact in connectors

How to Fix

  1. Check the fan circuit fuse
  2. Inspect wiring and connectors for damage
  3. Check fan relay operation
  4. Test the fan motor
  5. Check control signals from ECU

Related codes

Error P1480 by Vehicle Brand