OBD Guide
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P1474

Low Fan Control Primary Circuit Malfunction

P1474 is an OBD-II diagnostic trouble code meaning: Low Fan Control Primary Circuit Malfunction. Common causes: faulty fan relay, open or short circuit in control circuit. Estimated repair cost: $6–56.

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
  • Check Engine Light Is On
  • Reduced cooling efficiency

Causes

  • Faulty fan relay
  • Open or short circuit in control circuit
  • Bad contacts in connectors
  • Faulty cooling fan
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the fan relay and replace if necessary
  2. Inspect the wiring harness for damage
  3. Check the contacts in the control circuit connectors
  4. Test the cooling fan
  5. Check the serviceability of the engine control unit

Related codes

P1475P1476P1477

Error P1474 by Vehicle Brand

FordLincolnMercury

FAQ

What does the P1474 code mean?

P1474 is an OBD-II diagnostic trouble code that indicates: Low Fan Control Primary Circuit Malfunction

What causes a P1474 error code?

The most common causes of P1474 include: Faulty fan relay; Open or short circuit in control circuit; Bad contacts in connectors; Faulty cooling fan.

How do I fix a P1474 diagnostic trouble code?

To fix P1474: Check the fan relay and replace if necessary. Inspect the wiring harness for damage. Check the contacts in the control circuit connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1474?

Limited driving only, diagnose soon

How much does it cost to fix P1474?

The estimated repair cost for P1474 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat