OBD Guide

P2B30

Fan 1 Stuck On

P2B30 is an OBD-II diagnostic trouble code meaning: Fan 1 Stuck On. Common causes: stuck fan relay, short circuit in control circuit. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Cooling fan runs constantly
  • Increased fuel consumption
  • Low battery
  • Engine overheating (in rare cases)
  • Hot air from vents

Causes

  • Stuck fan relay
  • Short circuit in control circuit
  • Engine control unit malfunction
  • Problems with the coolant temperature sensor
  • Fan mechanical failure

How to Fix

  1. Check fan relay
  2. Inspect the control circuit for short circuit
  3. Check the operation of the coolant temperature sensor
  4. Test the fan itself
  5. If necessary, replace faulty components

Related codes

Error P2B30 by Vehicle Brand

FAQ

What does the P2B30 code mean?

P2B30 is an OBD-II diagnostic trouble code that indicates: Fan 1 Stuck On

What causes a P2B30 error code?

The most common causes of P2B30 include: Stuck fan relay; Short circuit in control circuit; Engine control unit malfunction; Problems with the coolant temperature sensor.

How do I fix a P2B30 diagnostic trouble code?

To fix P2B30: Check fan relay. Inspect the control circuit for short circuit. Check the operation of the coolant temperature sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2B30?

Yes, but get it checked soon

How much does it cost to fix P2B30?

The estimated repair cost for P2B30 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat