P0494

Fan 1 Underspeed

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–167 (est.)

Symptoms

Engine overheating
Increased coolant temperature
Unstable fan operation
Check Engine light comes on

Causes

Faulty cooling fan
Damaged wiring harness or connectors
Faulty fan relay
Fan control module problems
Low coolant level

How to Fix

Check coolant level
Check fan wiring harness and connectors
Check fan relays and fuses
Check the fan speed using a diagnostic scanner
Replace the fan if necessary

Related codes

P0480 P0481 P0482