P23C8

Fuel Heater Control Module Power Control Circuit Low

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 operation
Check Engine Light Illuminates
Reduced engine power

Causes

Open or short circuit in the fuel heating module control circuit
Malfunction of the fuel heating module
Relay or fuse problems
Engine control unit (ECU) malfunction

How to Fix

Check the integrity of wiring and connections in the control circuit
Check fuses and relays associated with the fuel heating module
Test the fuel heating module for malfunctions
If necessary, replace the fuel heating module

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