P23CC

Fuel Rail Heater Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Check Engine light comes on
Difficulty starting the engine in cold weather
Reduced engine power
Increased fuel consumption
The engine goes into emergency mode

Causes

Fuel rail heating element malfunction
Open or short circuit in control circuit
Problems with the relay or fuse of the heating circuit
Engine control unit malfunction
Corrosion or poor contact in connectors

How to Fix

Check the fuse and relay of the heating circuit
Check the integrity of the fuel rail heating element
Check the condition of the wiring and connectors
Scan the control unit for additional errors
If necessary, replace the heating element or repair the wiring

Related codes

P23CD P23CB P23CE