P23D0
Fuel Heater Control Module Feedback Signal Circuit High
P23D0 is an OBD-II diagnostic trouble code meaning: Fuel Heater Control Module Feedback Signal Circuit High. Common causes: malfunction of the fuel heater control module, open or short circuit in feedback circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Poor engine performance in cold weather
- Increased fuel consumption
- Unstable idle
- Possible problems starting the engine in cold weather
Causes
- Malfunction of the fuel heater control module
- Open or short circuit in feedback circuit
- Problems with wiring harness or contacts
- Engine ECU malfunction
- Corrosion or oxidation of contacts
How to Fix
- Check the integrity of the feedback circuit
- Inspect contacts and connectors for corrosion
- Check resistance and voltage in the circuit
- Test the heater control module
- If necessary, replace the control module
Related codes
Error P23D0 by Vehicle Brand
FAQ
What does the P23D0 code mean?
P23D0 is an OBD-II diagnostic trouble code that indicates: Fuel Heater Control Module Feedback Signal Circuit High
What causes a P23D0 error code?
The most common causes of P23D0 include: Malfunction of the fuel heater control module; Open or short circuit in feedback circuit; Problems with wiring harness or contacts; Engine ECU malfunction.
How do I fix a P23D0 diagnostic trouble code?
To fix P23D0: Check the integrity of the feedback circuit. Inspect contacts and connectors for corrosion. Check resistance and voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P23D0?
Yes, but get it checked soon
How much does it cost to fix P23D0?
The estimated repair cost for P23D0 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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