Fuel Heater Control Module Feedback Signal Performance
Same as P23CD with feedback in plausible range yet not matching the commanded heater state.
Affected components
- Fuel heater control module
Common causes
- High likelihood: Feedback signal drifted
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.