OBD Guide

P044C

EGR Sensor C Circuit Low

P044C is an OBD-II diagnostic trouble code meaning: EGR Sensor C Circuit Low. Common causes: egr sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation at idle
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • EGR sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • EGR valve malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the EGR sensor wiring harness and connectors for damage.
  2. Check the resistance of the EGR sensor (compare with factory values)
  3. Clean or replace EGR valve if necessary
  4. Check the power and ground of the EGR sensor
  5. If necessary, replace the EGR sensor
  6. Reset the error and check if it returns

Related codes

Error P044C by Vehicle Brand

FAQ

What does the P044C code mean?

P044C is an OBD-II diagnostic trouble code that indicates: EGR Sensor C Circuit Low

What causes a P044C error code?

The most common causes of P044C include: EGR sensor malfunction; Open or short circuit in wiring harness; Poor contact in connectors; EGR valve malfunction.

How do I fix a P044C diagnostic trouble code?

To fix P044C: Check the EGR sensor wiring harness and connectors for damage.. Check the resistance of the EGR sensor (compare with factory values). Clean or replace EGR valve if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P044C?

Limited driving only, diagnose soon

How much does it cost to fix P044C?

The estimated repair cost for P044C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat