The control module detected that the signal in the Engine Coolant Temperature Sensor 4 circuit stayed above the expected operating range.
TuningBot DTC Database · v4.37.14
P2AFF Engine Coolant Temperature Sensor 4 Circuit High
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2AFF means
Related and nearby codes
How to read P2AFF
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P2AFF
What does P2AFF mean?
Engine Coolant Temperature Sensor 4 Circuit High. The control module detected that the signal in the Engine Coolant Temperature Sensor 4 circuit stayed above the expected operating range.
Is P2AFF generic or manufacturer-specific?
P2AFF is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2AFF at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
