OBD Guide

P23DA

Cylinder 3 Fuel Heater Control Circuit High

P23DA is an OBD-II diagnostic trouble code meaning: Cylinder 3 Fuel Heater Control Circuit High. Common causes: cylinder 3 fuel heater malfunction, short circuit in control circuit. Estimated repair cost: $17–56.

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

Symptoms

  • Difficulty starting the engine in cold weather
  • Unstable engine idling
  • Increased fuel consumption
  • Check engine light comes on

Causes

  • Cylinder 3 fuel heater malfunction
  • Short circuit in control circuit
  • Damage to wiring or connectors
  • Engine control module malfunction

How to Fix

  1. Check the resistance of the cylinder 3 fuel heater
  2. Inspect wiring and connectors for damage
  3. Check control circuit voltage
  4. If necessary, replace the fuel heater
  5. Check and, if necessary, replace the control module

Related codes

Error P23DA by Vehicle Brand

FAQ

What does the P23DA code mean?

P23DA is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Fuel Heater Control Circuit High

What causes a P23DA error code?

The most common causes of P23DA include: Cylinder 3 fuel heater malfunction; Short circuit in control circuit; Damage to wiring or connectors; Engine control module malfunction.

How do I fix a P23DA diagnostic trouble code?

To fix P23DA: Check the resistance of the cylinder 3 fuel heater. Inspect wiring and connectors for damage. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P23DA?

Yes, but get it checked soon

How much does it cost to fix P23DA?

The estimated repair cost for P23DA is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat