OBD Guide

P14C5

Radiator Ventilation Upper Electrical Fault

P14C5 is an OBD-II diagnostic trouble code meaning: Radiator Ventilation Upper Electrical Fault. Common causes: open or short circuit in the radiator ventilation circuit, coolant temperature sensor malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Increased engine temperature
  • Reduced cooling efficiency
  • Unstable engine operation

Causes

  • Open or short circuit in the radiator ventilation circuit
  • Coolant temperature sensor malfunction
  • Poor contact in circuit connectors
  • Wiring harness damage
  • Engine control unit malfunction

How to Fix

  1. Check the integrity of the wiring and connectors in the radiator ventilation circuit
  2. Check the functionality of the coolant temperature sensor
  3. Scan the engine control module for additional errors
  4. Repair or replace damaged circuit elements

Related codes

FAQ

What does the P14C5 code mean?

P14C5 is an OBD-II diagnostic trouble code that indicates: Radiator Ventilation Upper Electrical Fault

What causes a P14C5 error code?

The most common causes of P14C5 include: Open or short circuit in the radiator ventilation circuit; Coolant temperature sensor malfunction; Poor contact in circuit connectors; Wiring harness damage.

How do I fix a P14C5 diagnostic trouble code?

To fix P14C5: Check the integrity of the wiring and connectors in the radiator ventilation circuit. Check the functionality of the coolant temperature sensor. Scan the engine control module for additional errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P14C5?

Yes, but get it checked soon

How much does it cost to fix P14C5?

The estimated repair cost for P14C5 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat