OBD Guide

P23CE

Fuel Heater Control Module Feedback Signal Performance

P23CE is an OBD-II diagnostic trouble code meaning: Fuel Heater Control Module Feedback Signal Performance. Common causes: malfunction of the fuel heating module, open or short circuit in the module circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration of engine performance in cold weather
  • Problems starting the engine at low temperatures
  • Reduced engine power
  • Increased fuel consumption

Causes

  • Malfunction of the fuel heating module
  • Open or short circuit in the module circuit
  • Poor contact in the module connector
  • Problems with the heating module relay
  • Engine control unit malfunction

How to Fix

  1. Check the continuity of the heating module circuit
  2. Inspect connectors and contacts for corrosion
  3. Check the functionality of the module relay
  4. Test or replace the fuel heating module
  5. If necessary, update the ECU firmware

Related codes

Error P23CE by Vehicle Brand

FAQ

What does the P23CE code mean?

P23CE is an OBD-II diagnostic trouble code that indicates: Fuel Heater Control Module Feedback Signal Performance

What causes a P23CE error code?

The most common causes of P23CE include: Malfunction of the fuel heating module; Open or short circuit in the module circuit; Poor contact in the module connector; Problems with the heating module relay.

How do I fix a P23CE diagnostic trouble code?

To fix P23CE: Check the continuity of the heating module circuit. Inspect connectors and contacts for corrosion. Check the functionality of the module relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P23CE?

Yes, but get it checked soon

How much does it cost to fix P23CE?

The estimated repair cost for P23CE is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat